Kernel LLVM AMD Phenom II X4 965 testing with a MSI 890FXA-GD70 (MS-7640) v1.0 (V1.8 BIOS) and MSI NVIDIA GeForce GTX 650 Ti 1GB on ManjaroLinux 21.0.4 via the Phoronix Test Suite. Kernel LLVM: Processor: AMD Phenom II X4 965 @ 3.30GHz (4 Cores), Motherboard: MSI 890FXA-GD70 (MS-7640) v1.0 (V1.8 BIOS), Chipset: AMD RD890 PCI-e GFX Hydra part, Memory: 16GB, Disk: 116GB Samsung SSD 840 + 200GB Seagate ST3200822AS, Graphics: MSI NVIDIA GeForce GTX 650 Ti 1GB, Audio: Realtek ALC892, Network: Realtek RTL8111/8168/8411 OS: ManjaroLinux 21.0.4, Kernel: 5.12.2-153-tkg-pds-llvm (x86_64), Desktop: KDE Plasma 5.21.4, Display Server: X Server 1.20.11, Display Driver: NVIDIA 465.27, OpenGL: 4.6.0, Vulkan: 1.2.168, Compiler: GCC 10.2.0 + Clang 13.0.0, File-System: btrfs, Screen Resolution: 1920x1080 Kernel GCC: Processor: AMD Phenom II X4 965 @ 3.30GHz (4 Cores), Motherboard: MSI 890FXA-GD70 (MS-7640) v1.0 (V1.8 BIOS), Chipset: AMD RD890 PCI-e GFX Hydra part, Memory: 16GB, Disk: 116GB Samsung SSD 840 + 200GB Seagate ST3200822AS, Graphics: MSI NVIDIA GeForce GTX 650 Ti 1GB, Audio: Realtek ALC892, Network: Realtek RTL8111/8168/8411 OS: ManjaroLinux 21.0.4, Kernel: 5.12.2-153-tkg-pds (x86_64), Desktop: KDE Plasma 5.21.4, Display Server: X Server 1.20.11, Display Driver: NVIDIA 465.27, OpenGL: 4.6.0, Vulkan: 1.2.168, Compiler: GCC 10.2.0 + Clang 13.0.0, File-System: btrfs, Screen Resolution: 1920x1080 Kernel LLVM 11.1: Processor: AMD Phenom II X4 965 @ 3.30GHz (4 Cores), Motherboard: MSI 890FXA-GD70 (MS-7640) v1.0 (V1.8 BIOS), Chipset: AMD RD890 PCI-e GFX Hydra part, Memory: 16GB, Disk: 116GB Samsung SSD 840 + 200GB Seagate ST3200822AS, Graphics: MSI NVIDIA GeForce GTX 650 Ti 1GB, Audio: Realtek ALC892, Network: Realtek RTL8111/8168/8411 OS: ManjaroLinux 21.0.4, Kernel: 5.12.2-153-tkg-pds-llvm (x86_64), Desktop: KDE Plasma 5.21.4, Display Server: X Server 1.20.11, Display Driver: NVIDIA 465.27, OpenGL: 4.6.0, Vulkan: 1.2.168, Compiler: GCC 10.2.0 + Clang 11.1.0 + LLVM 11.1.0, File-System: btrfs, Screen Resolution: 1920x1080 Kernel GCC 11.1.1: Processor: AMD Phenom II X4 965 @ 3.30GHz (4 Cores), Motherboard: MSI 890FXA-GD70 (MS-7640) v1.0 (V1.8 BIOS), Chipset: AMD RD890 PCI-e GFX Hydra part, Memory: 16GB, Disk: 116GB Samsung SSD 840 + 200GB Seagate ST3200822AS, Graphics: MSI NVIDIA GeForce GTX 650 Ti 1GB, Audio: Realtek ALC892, Network: Realtek RTL8111/8168/8411 OS: ManjaroLinux 21.0.4, Kernel: 5.12.2-154-tkg-pds (x86_64), Desktop: KDE Plasma 5.21.4, Display Server: X Server 1.20.11, Display Driver: NVIDIA 465.27, OpenGL: 4.6.0, Vulkan: 1.2.168, Compiler: GCC 10.2.0 + Clang 11.1.0 + LLVM 11.1.0, File-System: btrfs, Screen Resolution: 1920x1080 LevelDB 1.22 Benchmark: Hot Read Microseconds Per Op < Lower Is Better Kernel LLVM ....... 2.310 |================================================== Kernel GCC ........ 2.389 |==================================================== Kernel LLVM 11.1 .. 2.317 |================================================== Kernel GCC 11.1.1 . 2.393 |==================================================== LevelDB 1.22 Benchmark: Fill Sync MB/s > Higher Is Better Kernel LLVM ....... 24.9 |===================================================== Kernel GCC ........ 25.1 |===================================================== Kernel LLVM 11.1 .. 24.3 |=================================================== Kernel GCC 11.1.1 . 24.8 |==================================================== LevelDB 1.22 Benchmark: Fill Sync Microseconds Per Op < Lower Is Better Kernel LLVM ....... 17.68 |=================================================== Kernel GCC ........ 17.44 |================================================== Kernel LLVM 11.1 .. 18.06 |==================================================== Kernel GCC 11.1.1 . 17.68 |=================================================== LevelDB 1.22 Benchmark: Overwrite MB/s > Higher Is Better Kernel LLVM ....... 30.3 |=================================================== Kernel GCC ........ 31.2 |==================================================== Kernel LLVM 11.1 .. 29.9 |================================================== Kernel GCC 11.1.1 . 31.7 |===================================================== LevelDB 1.22 Benchmark: Overwrite Microseconds Per Op < Lower Is Better Kernel LLVM ....... 14.57 |=================================================== Kernel GCC ........ 14.13 |================================================== Kernel LLVM 11.1 .. 14.73 |==================================================== Kernel GCC 11.1.1 . 13.92 |================================================= LevelDB 1.22 Benchmark: Random Fill MB/s > Higher Is Better Kernel LLVM ....... 30.5 |==================================================== Kernel GCC ........ 31.2 |===================================================== Kernel LLVM 11.1 .. 30.0 |=================================================== Kernel GCC 11.1.1 . 31.2 |===================================================== LevelDB 1.22 Benchmark: Random Fill Microseconds Per Op < Lower Is Better Kernel LLVM ....... 14.48 |=================================================== Kernel GCC ........ 14.14 |================================================== Kernel LLVM 11.1 .. 14.72 |==================================================== Kernel GCC 11.1.1 . 14.16 |================================================== LevelDB 1.22 Benchmark: Random Read Microseconds Per Op < Lower Is Better Kernel LLVM ....... 2.293 |================================================= Kernel GCC ........ 2.411 |==================================================== Kernel LLVM 11.1 .. 2.353 |=================================================== Kernel GCC 11.1.1 . 2.402 |==================================================== LevelDB 1.22 Benchmark: Seek Random Microseconds Per Op < Lower Is Better Kernel LLVM ....... 3.359 |=================================================== Kernel GCC ........ 3.393 |==================================================== Kernel LLVM 11.1 .. 3.412 |==================================================== Kernel GCC 11.1.1 . 3.358 |=================================================== LevelDB 1.22 Benchmark: Random Delete Microseconds Per Op < Lower Is Better Kernel LLVM ....... 13.45 |==================================================== Kernel GCC ........ 13.16 |=================================================== Kernel LLVM 11.1 .. 13.46 |==================================================== Kernel GCC 11.1.1 . 12.85 |================================================== LevelDB 1.22 Benchmark: Sequential Fill MB/s > Higher Is Better Kernel LLVM ....... 31.6 |=================================================== Kernel GCC ........ 32.6 |===================================================== Kernel LLVM 11.1 .. 32.2 |==================================================== Kernel GCC 11.1.1 . 32.9 |===================================================== LevelDB 1.22 Benchmark: Sequential Fill Microseconds Per Op < Lower Is Better Kernel LLVM ....... 13.96 |==================================================== Kernel GCC ........ 13.55 |================================================== Kernel LLVM 11.1 .. 13.73 |=================================================== Kernel GCC 11.1.1 . 13.41 |================================================== PostMark 1.51 Disk Transaction Performance TPS > Higher Is Better Kernel LLVM ....... 3713 |=================================================== Kernel GCC ........ 3866 |===================================================== Kernel LLVM 11.1 .. 3713 |=================================================== Kernel GCC 11.1.1 . 3886 |===================================================== Tinymembench 2018-05-28 Standard Memcpy MB/s > Higher Is Better Kernel LLVM ....... 5825.3 |=================================================== Kernel GCC ........ 5826.1 |=================================================== Kernel LLVM 11.1 .. 5809.3 |=================================================== Kernel GCC 11.1.1 . 5810.2 |=================================================== Tinymembench 2018-05-28 Standard Memset MB/s > Higher Is Better Kernel LLVM ....... 5702.3 |=================================================== Kernel GCC ........ 5691.5 |=================================================== Kernel LLVM 11.1 .. 5677.3 |=================================================== Kernel GCC 11.1.1 . 5662.7 |=================================================== MBW 2018-09-08 Test: Memory Copy - Array Size: 128 MiB MiB/s > Higher Is Better Kernel LLVM ....... 5172.97 |================================================= Kernel GCC ........ 5259.71 |================================================== Kernel LLVM 11.1 .. 5160.39 |================================================= Kernel GCC 11.1.1 . 5171.81 |================================================= MBW 2018-09-08 Test: Memory Copy - Array Size: 512 MiB MiB/s > Higher Is Better Kernel LLVM ....... 5146.67 |================================================= Kernel GCC ........ 5267.52 |================================================== Kernel LLVM 11.1 .. 5233.32 |================================================== Kernel GCC 11.1.1 . 5204.92 |================================================= MBW 2018-09-08 Test: Memory Copy - Array Size: 1024 MiB MiB/s > Higher Is Better Kernel LLVM ....... 5152.91 |================================================= Kernel GCC ........ 5257.93 |================================================== Kernel LLVM 11.1 .. 5252.54 |================================================== Kernel GCC 11.1.1 . 5221.13 |================================================== MBW 2018-09-08 Test: Memory Copy - Array Size: 4096 MiB MiB/s > Higher Is Better Kernel LLVM ....... 5105.87 |================================================ Kernel GCC ........ 5267.71 |================================================== Kernel LLVM 11.1 .. 5240.10 |================================================== Kernel GCC 11.1.1 . 5241.74 |================================================== MBW 2018-09-08 Test: Memory Copy, Fixed Block Size - Array Size: 128 MiB MiB/s > Higher Is Better Kernel LLVM ....... 3623.86 |================================================= Kernel GCC ........ 3715.49 |================================================== Kernel LLVM 11.1 .. 3648.54 |================================================= Kernel GCC 11.1.1 . 3627.97 |================================================= MBW 2018-09-08 Test: Memory Copy, Fixed Block Size - Array Size: 512 MiB MiB/s > Higher Is Better Kernel LLVM ....... 3548.36 |================================================ Kernel GCC ........ 3719.91 |================================================== Kernel LLVM 11.1 .. 3693.63 |================================================== Kernel GCC 11.1.1 . 3665.78 |================================================= MBW 2018-09-08 Test: Memory Copy, Fixed Block Size - Array Size: 1024 MiB MiB/s > Higher Is Better Kernel LLVM ....... 3575.72 |================================================ Kernel GCC ........ 3724.20 |================================================== Kernel LLVM 11.1 .. 3705.68 |================================================== Kernel GCC 11.1.1 . 3682.90 |================================================= MBW 2018-09-08 Test: Memory Copy, Fixed Block Size - Array Size: 4096 MiB MiB/s > Higher Is Better Kernel LLVM ....... 3600.37 |================================================ Kernel GCC ........ 3722.11 |================================================== Kernel LLVM 11.1 .. 3689.69 |================================================== Kernel GCC 11.1.1 . 3689.90 |================================================== t-test1 2017-01-13 Threads: 1 Seconds < Lower Is Better Kernel LLVM ....... 32.00 |=================================================== Kernel GCC ........ 31.27 |================================================== Kernel LLVM 11.1 .. 32.66 |==================================================== Kernel GCC 11.1.1 . 32.39 |==================================================== t-test1 2017-01-13 Threads: 2 Seconds < Lower Is Better Kernel LLVM ....... 11.04 |==================================================== Kernel GCC ........ 10.94 |=================================================== Kernel LLVM 11.1 .. 11.14 |==================================================== Kernel GCC 11.1.1 . 10.96 |=================================================== pmbench Concurrent Worker Threads: 1 - Read-Write Ratio: 50% us - Average Page Latency < Lower Is Better Kernel LLVM ....... 0.1128 |================================================== Kernel GCC ........ 0.1135 |=================================================== Kernel LLVM 11.1 .. 0.1138 |=================================================== Kernel GCC 11.1.1 . 0.1142 |=================================================== pmbench Concurrent Worker Threads: 2 - Read-Write Ratio: 50% us - Average Page Latency < Lower Is Better Kernel LLVM ....... 0.1161 |================================================= Kernel GCC ........ 0.1176 |================================================== Kernel LLVM 11.1 .. 0.1182 |================================================== Kernel GCC 11.1.1 . 0.1201 |=================================================== pmbench Concurrent Worker Threads: 4 - Read-Write Ratio: 50% us - Average Page Latency < Lower Is Better Kernel LLVM ....... 0.1191 |================================================= Kernel GCC ........ 0.1206 |================================================== Kernel LLVM 11.1 .. 0.1231 |=================================================== Kernel GCC 11.1.1 . 0.1218 |================================================== pmbench Concurrent Worker Threads: 1 - Read-Write Ratio: 100% Reads us - Average Page Latency < Lower Is Better Kernel LLVM ....... 0.0623 |================================================== Kernel GCC ........ 0.0632 |================================================== Kernel LLVM 11.1 .. 0.0641 |=================================================== Kernel GCC 11.1.1 . 0.0633 |================================================== pmbench Concurrent Worker Threads: 2 - Read-Write Ratio: 100% Reads us - Average Page Latency < Lower Is Better Kernel LLVM ....... 0.0640 |=================================================== Kernel GCC ........ 0.0637 |================================================== Kernel LLVM 11.1 .. 0.0645 |=================================================== Kernel GCC 11.1.1 . 0.0638 |================================================== pmbench Concurrent Worker Threads: 4 - Read-Write Ratio: 100% Reads us - Average Page Latency < Lower Is Better Kernel LLVM ....... 0.0655 |================================================== Kernel GCC ........ 0.0649 |================================================= Kernel LLVM 11.1 .. 0.0672 |=================================================== Kernel GCC 11.1.1 . 0.0648 |================================================= pmbench Concurrent Worker Threads: 1 - Read-Write Ratio: 100% Writes us - Average Page Latency < Lower Is Better Kernel LLVM ....... 0.1038 |================================================== Kernel GCC ........ 0.1032 |================================================= Kernel LLVM 11.1 .. 0.1049 |================================================== Kernel GCC 11.1.1 . 0.1065 |=================================================== pmbench Concurrent Worker Threads: 2 - Read-Write Ratio: 100% Writes us - Average Page Latency < Lower Is Better Kernel LLVM ....... 0.1065 |================================================== Kernel GCC ........ 0.1059 |================================================== Kernel LLVM 11.1 .. 0.1085 |=================================================== Kernel GCC 11.1.1 . 0.1084 |=================================================== pmbench Concurrent Worker Threads: 4 - Read-Write Ratio: 100% Writes us - Average Page Latency < Lower Is Better Kernel LLVM ....... 0.1132 |================================================== Kernel GCC ........ 0.1129 |================================================== Kernel LLVM 11.1 .. 0.1145 |=================================================== Kernel GCC 11.1.1 . 0.1153 |=================================================== pmbench Concurrent Worker Threads: 1 - Read-Write Ratio: 80% Reads 20% Writes us - Average Page Latency < Lower Is Better Kernel LLVM ....... 0.1175 |================================================= Kernel GCC ........ 0.1159 |================================================ Kernel LLVM 11.1 .. 0.1194 |================================================== Kernel GCC 11.1.1 . 0.1221 |=================================================== pmbench Concurrent Worker Threads: 2 - Read-Write Ratio: 80% Reads 20% Writes us - Average Page Latency < Lower Is Better Kernel LLVM ....... 0.1200 |================================================== Kernel GCC ........ 0.1209 |=================================================== Kernel LLVM 11.1 .. 0.1218 |=================================================== Kernel GCC 11.1.1 . 0.1218 |=================================================== pmbench Concurrent Worker Threads: 4 - Read-Write Ratio: 80% Reads 20% Writes us - Average Page Latency < Lower Is Better Kernel LLVM ....... 0.1240 |=============================================== Kernel GCC ........ 0.1235 |============================================== Kernel LLVM 11.1 .. 0.1234 |============================================== Kernel GCC 11.1.1 . 0.1360 |=================================================== iPerf 3.7 Server Address: localhost - Server Port: 5201 - Duration: 10 Seconds - Test: UDP - 100Mbit Objective - Parallel: 1 Mbits/sec > Higher Is Better Kernel LLVM ....... 100 |====================================================== Kernel GCC ........ 100 |====================================================== Kernel LLVM 11.1 .. 100 |====================================================== Kernel GCC 11.1.1 . 100 |====================================================== iPerf 3.7 Server Address: localhost - Server Port: 5201 - Duration: 10 Seconds - Test: UDP - 1000Mbit Objective - Parallel: 1 Mbits/sec > Higher Is Better Kernel LLVM ....... 1000 |===================================================== Kernel GCC ........ 1000 |===================================================== Kernel LLVM 11.1 .. 1000 |===================================================== Kernel GCC 11.1.1 . 1000 |===================================================== iPerf 3.7 Server Address: localhost - Server Port: 5201 - Duration: 10 Seconds - Test: UDP - 100Mbit Objective - Parallel: 32 Mbits/sec > Higher Is Better Kernel LLVM ....... 3200 |===================================================== Kernel GCC ........ 3200 |===================================================== Kernel LLVM 11.1 .. 3200 |===================================================== Kernel GCC 11.1.1 . 3200 |===================================================== iPerf 3.7 Server Address: localhost - Server Port: 5201 - Duration: 10 Seconds - Test: UDP - 100Mbit Objective - Parallel: 64 Mbits/sec > Higher Is Better Kernel LLVM ....... 6400 |===================================================== Kernel GCC ........ 6400 |===================================================== Kernel LLVM 11.1 .. 6400 |===================================================== Kernel GCC 11.1.1 . 6400 |===================================================== iPerf 3.7 Server Address: localhost - Server Port: 5201 - Duration: 10 Seconds - Test: UDP - 1000Mbit Objective - Parallel: 32 Mbits/sec > Higher Is Better Kernel LLVM ....... 21412 |==================================================== Kernel GCC ........ 21434 |==================================================== Kernel LLVM 11.1 .. 20504 |================================================== Kernel GCC 11.1.1 . 20974 |=================================================== iPerf 3.7 Server Address: localhost - Server Port: 5201 - Duration: 10 Seconds - Test: UDP - 1000Mbit Objective - Parallel: 64 Mbits/sec > Higher Is Better Kernel LLVM ....... 20179 |=================================================== Kernel GCC ........ 20411 |==================================================== Kernel LLVM 11.1 .. 19835 |=================================================== Kernel GCC 11.1.1 . 11862 |============================== iPerf 3.7 Server Address: localhost - Server Port: 5201 - Duration: 10 Seconds - Test: TCP - Parallel: 1 Mbits/sec > Higher Is Better Kernel LLVM ....... 22637 |==================================================== Kernel GCC ........ 22822 |==================================================== Kernel LLVM 11.1 .. 21899 |================================================== Kernel GCC 11.1.1 . 12876 |============================= iPerf 3.7 Server Address: localhost - Server Port: 5201 - Duration: 10 Seconds - Test: UDP - Parallel: 1 Mbits/sec > Higher Is Better Kernel LLVM ....... 1.05 |===================================================== Kernel GCC ........ 1.05 |===================================================== Kernel LLVM 11.1 .. 1.05 |===================================================== Kernel GCC 11.1.1 . 1.05 |===================================================== iPerf 3.7 Server Address: localhost - Server Port: 5201 - Duration: 10 Seconds - Test: TCP - Parallel: 32 Mbits/sec > Higher Is Better Kernel LLVM ....... 20013 |================================================== Kernel GCC ........ 20700 |==================================================== Kernel LLVM 11.1 .. 17735 |============================================= Kernel GCC 11.1.1 . 12052 |============================== iPerf 3.7 Server Address: localhost - Server Port: 5201 - Duration: 10 Seconds - Test: TCP - Parallel: 64 Mbits/sec > Higher Is Better Kernel LLVM ....... 18133 |==================================================== Kernel GCC ........ 18304 |==================================================== Kernel LLVM 11.1 .. 16653 |=============================================== Kernel GCC 11.1.1 . 11544 |================================= iPerf 3.7 Server Address: localhost - Server Port: 5201 - Duration: 10 Seconds - Test: UDP - Parallel: 32 Mbits/sec > Higher Is Better Kernel LLVM ....... 33.6 |===================================================== Kernel GCC ........ 33.6 |===================================================== Kernel LLVM 11.1 .. 33.6 |===================================================== Kernel GCC 11.1.1 . 33.6 |===================================================== iPerf 3.7 Server Address: localhost - Server Port: 5201 - Duration: 10 Seconds - Test: UDP - Parallel: 64 Mbits/sec > Higher Is Better Kernel LLVM ....... 67.1 |===================================================== Kernel GCC ........ 67.1 |===================================================== Kernel LLVM 11.1 .. 67.1 |===================================================== Kernel GCC 11.1.1 . 67.1 |===================================================== WireGuard + Linux Networking Stack Stress Test Seconds < Lower Is Better Kernel LLVM ....... 550.07 |=================================================== Kernel GCC ........ 513.19 |=============================================== Kernel LLVM 11.1 .. 555.20 |=================================================== Kernel GCC 11.1.1 . 546.30 |================================================== perf-bench Benchmark: Epoll Wait ops/sec > Higher Is Better Kernel LLVM ....... 365409 |============================================= Kernel GCC ........ 394078 |================================================= Kernel LLVM 11.1 .. 375558 |============================================== Kernel GCC 11.1.1 . 413997 |=================================================== perf-bench Benchmark: Futex Hash ops/sec > Higher Is Better Kernel LLVM ....... 7193341 |================================================== Kernel GCC ........ 7113178 |================================================= Kernel LLVM 11.1 .. 7006665 |================================================= Kernel GCC 11.1.1 . 7089686 |================================================= perf-bench Benchmark: Memcpy 1MB GB/sec > Higher Is Better Kernel LLVM ....... 5.969103 |================================================= Kernel GCC ........ 5.913378 |================================================= Kernel LLVM 11.1 .. 5.954150 |================================================= Kernel GCC 11.1.1 . 5.927645 |================================================= perf-bench Benchmark: Memset 1MB GB/sec > Higher Is Better Kernel LLVM ....... 12.03 |==================================================== Kernel GCC ........ 12.00 |==================================================== Kernel LLVM 11.1 .. 12.02 |==================================================== Kernel GCC 11.1.1 . 11.56 |================================================== perf-bench Benchmark: Sched Pipe ops/sec > Higher Is Better Kernel LLVM ....... 214271 |================================================== Kernel GCC ........ 209932 |================================================= Kernel LLVM 11.1 .. 217433 |=================================================== Kernel GCC 11.1.1 . 199049 |=============================================== perf-bench Benchmark: Futex Lock-Pi ops/sec > Higher Is Better Kernel LLVM ....... 9738 |=========== Kernel GCC ........ 13155 |=============== Kernel LLVM 11.1 .. 13043 |=============== Kernel GCC 11.1.1 . 46045 |==================================================== perf-bench Benchmark: Syscall Basic ops/sec > Higher Is Better Kernel LLVM ....... 16627566 |================================================ Kernel GCC ........ 16907939 |================================================= Kernel LLVM 11.1 .. 16586283 |================================================ Kernel GCC 11.1.1 . 16699690 |================================================ OSBench Test: Create Files us Per Event < Lower Is Better Kernel LLVM ....... 38.82 |=================================================== Kernel GCC ........ 36.75 |================================================= Kernel LLVM 11.1 .. 39.40 |==================================================== Kernel GCC 11.1.1 . 39.00 |=================================================== OSBench Test: Create Threads us Per Event < Lower Is Better Kernel LLVM ....... 16.55 |==================================================== Kernel GCC ........ 15.75 |================================================= Kernel LLVM 11.1 .. 16.02 |================================================== Kernel GCC 11.1.1 . 14.57 |============================================== OSBench Test: Launch Programs us Per Event < Lower Is Better Kernel LLVM ....... 95.51 |=================================================== Kernel GCC ........ 91.06 |================================================= Kernel LLVM 11.1 .. 97.43 |==================================================== Kernel GCC 11.1.1 . 93.32 |================================================== OSBench Test: Create Processes us Per Event < Lower Is Better Kernel LLVM ....... 40.93 |==================================================== Kernel GCC ........ 39.49 |================================================== Kernel LLVM 11.1 .. 40.31 |=================================================== Kernel GCC 11.1.1 . 39.48 |================================================== OSBench Test: Memory Allocations Ns Per Event < Lower Is Better Kernel LLVM ....... 141.11 |================================================== Kernel GCC ........ 135.70 |================================================ Kernel LLVM 11.1 .. 137.38 |================================================= Kernel GCC 11.1.1 . 143.74 |=================================================== IPC_benchmark Type: TCP Socket - Message Bytes: 128 Messages Per Second > Higher Is Better Kernel LLVM ....... 2985001 |================================================== Kernel GCC ........ 2971343 |================================================== Kernel LLVM 11.1 .. 2943227 |================================================= Kernel GCC 11.1.1 . 2906209 |================================================= IPC_benchmark Type: TCP Socket - Message Bytes: 256 Messages Per Second > Higher Is Better Kernel LLVM ....... 2539979 |================================================== Kernel GCC ........ 2517133 |================================================== Kernel LLVM 11.1 .. 2503889 |================================================= Kernel GCC 11.1.1 . 2467568 |================================================= IPC_benchmark Type: TCP Socket - Message Bytes: 512 Messages Per Second > Higher Is Better Kernel LLVM ....... 2062968 |================================================== Kernel GCC ........ 2054086 |================================================== Kernel LLVM 11.1 .. 2044677 |================================================== Kernel GCC 11.1.1 . 2016930 |================================================= IPC_benchmark Type: TCP Socket - Message Bytes: 1024 Messages Per Second > Higher Is Better Kernel LLVM ....... 1453827 |================================================= Kernel GCC ........ 1421362 |================================================ Kernel LLVM 11.1 .. 1471645 |================================================== Kernel GCC 11.1.1 . 1442407 |================================================= IPC_benchmark Type: TCP Socket - Message Bytes: 2048 Messages Per Second > Higher Is Better Kernel LLVM ....... 950880 |=================================================== Kernel GCC ........ 944138 |=================================================== Kernel LLVM 11.1 .. 948187 |=================================================== Kernel GCC 11.1.1 . 941645 |=================================================== IPC_benchmark Type: TCP Socket - Message Bytes: 4096 Messages Per Second > Higher Is Better Kernel LLVM ....... 550089 |================================================== Kernel GCC ........ 555085 |================================================== Kernel LLVM 11.1 .. 562576 |=================================================== Kernel GCC 11.1.1 . 556704 |================================================== IPC_benchmark Type: Unnamed Pipe - Message Bytes: 128 Messages Per Second > Higher Is Better Kernel LLVM ....... 2891727 |================================================ Kernel GCC ........ 3040261 |================================================== Kernel LLVM 11.1 .. 2722030 |============================================= Kernel GCC 11.1.1 . 3034098 |================================================== IPC_benchmark Type: Unnamed Pipe - Message Bytes: 256 Messages Per Second > Higher Is Better Kernel LLVM ....... 2351761 |================================================== Kernel GCC ........ 2337377 |================================================== Kernel LLVM 11.1 .. 2283738 |================================================ Kernel GCC 11.1.1 . 2360107 |================================================== IPC_benchmark Type: Unnamed Pipe - Message Bytes: 512 Messages Per Second > Higher Is Better Kernel LLVM ....... 1772787 |================================================= Kernel GCC ........ 1809330 |================================================== Kernel LLVM 11.1 .. 1798509 |================================================= Kernel GCC 11.1.1 . 1824207 |================================================== IPC_benchmark Type: Unnamed Pipe - Message Bytes: 1024 Messages Per Second > Higher Is Better Kernel LLVM ....... 1285487 |================================================= Kernel GCC ........ 1316913 |================================================== Kernel LLVM 11.1 .. 1279652 |================================================ Kernel GCC 11.1.1 . 1322294 |================================================== IPC_benchmark Type: Unnamed Pipe - Message Bytes: 2048 Messages Per Second > Higher Is Better Kernel LLVM ....... 814387 |=================================================== Kernel GCC ........ 819679 |=================================================== Kernel LLVM 11.1 .. 812768 |=================================================== Kernel GCC 11.1.1 . 809206 |================================================== IPC_benchmark Type: Unnamed Pipe - Message Bytes: 4096 Messages Per Second > Higher Is Better Kernel LLVM ....... 468875 |================================================= Kernel GCC ........ 479683 |=================================================== Kernel LLVM 11.1 .. 471693 |================================================== Kernel GCC 11.1.1 . 483566 |=================================================== IPC_benchmark Type: FIFO Named Pipe - Message Bytes: 128 Messages Per Second > Higher Is Better Kernel LLVM ....... 2801157 |============================================== Kernel GCC ........ 3043686 |================================================== Kernel LLVM 11.1 .. 2649855 |============================================ Kernel GCC 11.1.1 . 2986912 |================================================= IPC_benchmark Type: FIFO Named Pipe - Message Bytes: 256 Messages Per Second > Higher Is Better Kernel LLVM ....... 2278454 |================================================= Kernel GCC ........ 2299703 |================================================== Kernel LLVM 11.1 .. 2150341 |=============================================== Kernel GCC 11.1.1 . 2306298 |================================================== IPC_benchmark Type: FIFO Named Pipe - Message Bytes: 512 Messages Per Second > Higher Is Better Kernel LLVM ....... 1746678 |================================================ Kernel GCC ........ 1776333 |================================================ Kernel LLVM 11.1 .. 1747103 |================================================ Kernel GCC 11.1.1 . 1835701 |================================================== IPC_benchmark Type: FIFO Named Pipe - Message Bytes: 1024 Messages Per Second > Higher Is Better Kernel LLVM ....... 1280989 |================================================ Kernel GCC ........ 1297216 |================================================= Kernel LLVM 11.1 .. 1281112 |================================================ Kernel GCC 11.1.1 . 1324519 |================================================== IPC_benchmark Type: FIFO Named Pipe - Message Bytes: 2048 Messages Per Second > Higher Is Better Kernel LLVM ....... 807480 |================================================== Kernel GCC ........ 811570 |=================================================== Kernel LLVM 11.1 .. 808658 |=================================================== Kernel GCC 11.1.1 . 815678 |=================================================== IPC_benchmark Type: FIFO Named Pipe - Message Bytes: 4096 Messages Per Second > Higher Is Better Kernel LLVM ....... 465636 |================================================ Kernel GCC ........ 483511 |================================================== Kernel LLVM 11.1 .. 469668 |================================================= Kernel GCC 11.1.1 . 490914 |=================================================== IPC_benchmark Type: Unnamed Unix Domain Socket - Message Bytes: 128 Messages Per Second > Higher Is Better Kernel LLVM ....... 1363561 |================================================ Kernel GCC ........ 1374745 |================================================= Kernel LLVM 11.1 .. 1336817 |=============================================== Kernel GCC 11.1.1 . 1411134 |================================================== IPC_benchmark Type: Unnamed Unix Domain Socket - Message Bytes: 256 Messages Per Second > Higher Is Better Kernel LLVM ....... 1204312 |=============================================== Kernel GCC ........ 1233688 |================================================ Kernel LLVM 11.1 .. 1209161 |=============================================== Kernel GCC 11.1.1 . 1281031 |================================================== IPC_benchmark Type: Unnamed Unix Domain Socket - Message Bytes: 512 Messages Per Second > Higher Is Better Kernel LLVM ....... 1151175 |================================================= Kernel GCC ........ 1171213 |================================================== Kernel LLVM 11.1 .. 1120322 |================================================ Kernel GCC 11.1.1 . 1137453 |================================================= IPC_benchmark Type: Unnamed Unix Domain Socket - Message Bytes: 1024 Messages Per Second > Higher Is Better Kernel LLVM ....... 936841 |================================================== Kernel GCC ........ 964065 |=================================================== Kernel LLVM 11.1 .. 926277 |================================================= Kernel GCC 11.1.1 . 933478 |================================================= IPC_benchmark Type: Unnamed Unix Domain Socket - Message Bytes: 2048 Messages Per Second > Higher Is Better Kernel LLVM ....... 520300 |=============================================== Kernel GCC ........ 559665 |=================================================== Kernel LLVM 11.1 .. 515245 |=============================================== Kernel GCC 11.1.1 . 558725 |=================================================== IPC_benchmark Type: Unnamed Unix Domain Socket - Message Bytes: 4096 Messages Per Second > Higher Is Better Kernel LLVM ....... 457959 |================================================= Kernel GCC ........ 473559 |=================================================== Kernel LLVM 11.1 .. 448144 |================================================ Kernel GCC 11.1.1 . 474951 |=================================================== Hackbench Count: 1 - Type: Thread Seconds < Lower Is Better Kernel LLVM ....... 11.98 |=================================================== Kernel GCC ........ 10.96 |=============================================== Kernel LLVM 11.1 .. 12.15 |==================================================== Kernel GCC 11.1.1 . 11.39 |================================================= Hackbench Count: 2 - Type: Thread Seconds < Lower Is Better Kernel LLVM ....... 23.06 |=================================================== Kernel GCC ........ 21.53 |================================================ Kernel LLVM 11.1 .. 23.50 |==================================================== Kernel GCC 11.1.1 . 21.93 |================================================= Hackbench Count: 4 - Type: Thread Seconds < Lower Is Better Kernel LLVM ....... 44.10 |==================================================== Kernel GCC ........ 39.90 |=============================================== Kernel LLVM 11.1 .. 44.30 |==================================================== Kernel GCC 11.1.1 . 40.06 |=============================================== Hackbench Count: 8 - Type: Thread Seconds < Lower Is Better Kernel LLVM ....... 88.29 |==================================================== Kernel GCC ........ 77.88 |============================================== Kernel LLVM 11.1 .. 88.56 |==================================================== Kernel GCC 11.1.1 . 77.03 |============================================= Hackbench Count: 1 - Type: Process Seconds < Lower Is Better Kernel LLVM ....... 10.387 |============================================== Kernel GCC ........ 10.084 |============================================= Kernel LLVM 11.1 .. 11.458 |=================================================== Kernel GCC 11.1.1 . 9.597 |=========================================== Hackbench Count: 16 - Type: Thread Seconds < Lower Is Better Kernel LLVM ....... 168.26 |================================================= Kernel GCC ........ 153.61 |============================================ Kernel LLVM 11.1 .. 176.70 |=================================================== Kernel GCC 11.1.1 . 152.80 |============================================ Hackbench Count: 2 - Type: Process Seconds < Lower Is Better Kernel LLVM ....... 20.91 |==================================================== Kernel GCC ........ 19.35 |================================================ Kernel LLVM 11.1 .. 20.89 |==================================================== Kernel GCC 11.1.1 . 19.70 |================================================= Hackbench Count: 4 - Type: Process Seconds < Lower Is Better Kernel LLVM ....... 40.36 |=================================================== Kernel GCC ........ 37.05 |=============================================== Kernel LLVM 11.1 .. 41.26 |==================================================== Kernel GCC 11.1.1 . 37.34 |=============================================== Hackbench Count: 8 - Type: Process Seconds < Lower Is Better Kernel LLVM ....... 79.20 |================================================== Kernel GCC ........ 72.84 |============================================== Kernel LLVM 11.1 .. 81.68 |==================================================== Kernel GCC 11.1.1 . 72.16 |============================================== Hackbench Count: 16 - Type: Process Seconds < Lower Is Better Kernel LLVM ....... 159.75 |=================================================== Kernel GCC ........ 144.75 |============================================== Kernel LLVM 11.1 .. 161.29 |=================================================== Kernel GCC 11.1.1 . 143.68 |============================================= Hackbench Count: 32 - Type: Process Seconds < Lower Is Better Kernel LLVM ....... 369.55 |=================================================== Kernel GCC ........ 317.41 |============================================ Kernel LLVM 11.1 .. 349.94 |================================================ Kernel GCC 11.1.1 . 351.33 |================================================ OpenSSL 1.1.1 RSA 4096-bit Performance Signs Per Second > Higher Is Better Kernel LLVM ....... 441.7 |=================================================== Kernel GCC ........ 448.0 |==================================================== Kernel LLVM 11.1 .. 447.8 |==================================================== Kernel GCC 11.1.1 . 444.1 |==================================================== PostgreSQL pgbench 13.0 Scaling Factor: 1 - Clients: 1 - Mode: Read Only TPS > Higher Is Better Kernel LLVM . 24331 |========================================================== PostgreSQL pgbench 13.0 Scaling Factor: 1 - Clients: 1 - Mode: Read Only - Average Latency ms < Lower Is Better Kernel LLVM . 0.041 |========================================================== PostgreSQL pgbench 13.0 Scaling Factor: 1 - Clients: 1 - Mode: Read Write TPS > Higher Is Better Kernel LLVM . 138 |============================================================ PostgreSQL pgbench 13.0 Scaling Factor: 1 - Clients: 1 - Mode: Read Write - Average Latency ms < Lower Is Better Kernel LLVM . 7.225 |========================================================== PostgreSQL pgbench 13.0 Scaling Factor: 1 - Clients: 50 - Mode: Read Only TPS > Higher Is Better Kernel LLVM . 73013 |========================================================== PostgreSQL pgbench 13.0 Scaling Factor: 1 - Clients: 50 - Mode: Read Only - Average Latency ms < Lower Is Better Kernel LLVM . 0.685 |========================================================== PostgreSQL pgbench 13.0 Scaling Factor: 1 - Clients: 100 - Mode: Read Only TPS > Higher Is Better Kernel LLVM . 69196 |========================================================== PostgreSQL pgbench 13.0 Scaling Factor: 1 - Clients: 100 - Mode: Read Only - Average Latency ms < Lower Is Better Kernel LLVM . 1.445 |========================================================== PostgreSQL pgbench 13.0 Scaling Factor: 1 - Clients: 250 - Mode: Read Only TPS > Higher Is Better Kernel LLVM . 58083 |========================================================== PostgreSQL pgbench 13.0 Scaling Factor: 1 - Clients: 250 - Mode: Read Only - Average Latency ms < Lower Is Better Kernel LLVM . 4.305 |========================================================== PostgreSQL pgbench 13.0 Scaling Factor: 100 - Clients: 1 - Mode: Read Only TPS > Higher Is Better Kernel LLVM . 19914 |========================================================== PostgreSQL pgbench 13.0 Scaling Factor: 100 - Clients: 1 - Mode: Read Only - Average Latency ms < Lower Is Better Kernel LLVM . 0.050 |========================================================== SQLite Speedtest 3.30 Timed Time - Size 1,000 Seconds < Lower Is Better Kernel LLVM ....... 132.19 |=================================================== Kernel GCC ........ 125.96 |================================================= Kernel LLVM 11.1 .. 131.72 |=================================================== Kernel GCC 11.1.1 . 129.84 |================================================== BenchmarkMutex Benchmark: Shared Mutex Lock Shared ns < Lower Is Better Kernel LLVM ....... 31.9 |===================================================== Kernel GCC ........ 31.6 |==================================================== Kernel LLVM 11.1 .. 31.9 |===================================================== Kernel GCC 11.1.1 . 32.2 |===================================================== BenchmarkMutex Benchmark: Mutex Lock Unlock spinlock ns < Lower Is Better Kernel LLVM ....... 42.9 |===================================================== Kernel GCC ........ 42.5 |===================================================== Kernel LLVM 11.1 .. 42.5 |===================================================== Kernel GCC 11.1.1 . 42.8 |===================================================== BenchmarkMutex Benchmark: Mutex Lock Unlock std::mutex ns < Lower Is Better Kernel LLVM ....... 25.5 |===================================================== Kernel GCC ........ 25.2 |==================================================== Kernel LLVM 11.1 .. 25.3 |===================================================== Kernel GCC 11.1.1 . 25.2 |==================================================== BenchmarkMutex Benchmark: Mutex Lock Unlock std::mutex ns < Lower Is Better Kernel LLVM ....... 35.0 |===================================================== Kernel GCC ........ 34.7 |===================================================== Kernel LLVM 11.1 .. 35.0 |===================================================== Kernel GCC 11.1.1 . 34.7 |===================================================== BenchmarkMutex Benchmark: Semaphore Release And Acquire ns < Lower Is Better Kernel LLVM ....... 19.0 |===================================================== Kernel GCC ........ 19.1 |===================================================== Kernel LLVM 11.1 .. 19.0 |===================================================== Kernel GCC 11.1.1 . 19.0 |===================================================== BenchmarkMutex Benchmark: Mutex Lock Unlock spinlock_amd ns < Lower Is Better Kernel LLVM ....... 46.9 |===================================================== Kernel GCC ........ 46.6 |===================================================== Kernel LLVM 11.1 .. 46.7 |===================================================== Kernel GCC 11.1.1 . 46.8 |===================================================== BenchmarkMutex Benchmark: Mutex Lock Unlock pthread_mutex ns < Lower Is Better Kernel LLVM ....... 21.3 |===================================================== Kernel GCC ........ 21.3 |===================================================== Kernel LLVM 11.1 .. 21.3 |===================================================== Kernel GCC 11.1.1 . 21.3 |===================================================== BenchmarkMutex Benchmark: Mutex Lock Unlock ticket_spinlock ns < Lower Is Better Kernel LLVM ....... 24.9 |===================================================== Kernel GCC ........ 24.8 |===================================================== Kernel LLVM 11.1 .. 24.8 |===================================================== Kernel GCC 11.1.1 . 24.9 |===================================================== Stress-NG 0.11.07 Test: MMAP Bogo Ops/s > Higher Is Better Kernel LLVM ....... 12.45 |================================================= Kernel GCC ........ 13.13 |==================================================== Kernel LLVM 11.1 .. 12.71 |================================================== Kernel GCC 11.1.1 . 12.43 |================================================= Stress-NG 0.11.07 Test: NUMA Bogo Ops/s > Higher Is Better Kernel LLVM ....... 38 |======================================================= Kernel GCC ........ 38 |======================================================= Kernel LLVM 11.1 .. 38 |======================================================= Kernel GCC 11.1.1 . 38 |======================================================= Stress-NG 0.11.07 Test: MEMFD Bogo Ops/s > Higher Is Better Kernel LLVM ....... 9.01 |===================================================== Kernel GCC ........ 9.00 |===================================================== Kernel LLVM 11.1 .. 8.88 |==================================================== Kernel GCC 11.1.1 . 8.68 |=================================================== Stress-NG 0.11.07 Test: Atomic Bogo Ops/s > Higher Is Better Kernel LLVM ....... 167420.30 |================================================ Kernel GCC ........ 167641.36 |================================================ Kernel LLVM 11.1 .. 168572.72 |================================================ Kernel GCC 11.1.1 . 168463.99 |================================================ Stress-NG 0.11.07 Test: Crypto Bogo Ops/s > Higher Is Better Kernel LLVM ....... 644.00 |=================================================== Kernel GCC ........ 642.70 |=================================================== Kernel LLVM 11.1 .. 644.60 |=================================================== Kernel GCC 11.1.1 . 640.73 |=================================================== Stress-NG 0.11.07 Test: Malloc Bogo Ops/s > Higher Is Better Kernel LLVM ....... 11148830.46 |============================================== Kernel GCC ........ 11170312.20 |============================================== Kernel LLVM 11.1 .. 11061908.02 |============================================== Kernel GCC 11.1.1 . 11072394.46 |============================================== Stress-NG 0.11.07 Test: Forking Bogo Ops/s > Higher Is Better Kernel LLVM ....... 19252.07 |=============================================== Kernel GCC ........ 19887.81 |================================================= Kernel LLVM 11.1 .. 19280.77 |=============================================== Kernel GCC 11.1.1 . 19951.99 |================================================= Stress-NG 0.11.07 Test: SENDFILE Bogo Ops/s > Higher Is Better Kernel LLVM ....... 53687.47 |============================================= Kernel GCC ........ 55850.50 |=============================================== Kernel LLVM 11.1 .. 54398.51 |============================================= Kernel GCC 11.1.1 . 58610.15 |================================================= Stress-NG 0.11.07 Test: CPU Cache Bogo Ops/s > Higher Is Better Kernel LLVM ....... 6.84 |===================================================== Kernel GCC ........ 6.90 |===================================================== Kernel LLVM 11.1 .. 6.69 |=================================================== Kernel GCC 11.1.1 . 6.88 |===================================================== Stress-NG 0.11.07 Test: CPU Stress Bogo Ops/s > Higher Is Better Kernel LLVM ....... 825.59 |=================================================== Kernel GCC ........ 828.24 |=================================================== Kernel LLVM 11.1 .. 824.83 |=================================================== Kernel GCC 11.1.1 . 825.79 |=================================================== Stress-NG 0.11.07 Test: Semaphores Bogo Ops/s > Higher Is Better Kernel LLVM ....... 1229760.03 |============================================= Kernel GCC ........ 1277296.32 |=============================================== Kernel LLVM 11.1 .. 1274218.42 |=============================================== Kernel GCC 11.1.1 . 1197368.79 |============================================ Stress-NG 0.11.07 Test: Matrix Math Bogo Ops/s > Higher Is Better Kernel LLVM ....... 11754.15 |================================================= Kernel GCC ........ 11754.94 |================================================= Kernel LLVM 11.1 .. 11766.64 |================================================= Kernel GCC 11.1.1 . 11746.10 |================================================= Stress-NG 0.11.07 Test: Vector Math Bogo Ops/s > Higher Is Better Kernel LLVM ....... 9619.98 |================================================== Kernel GCC ........ 9629.61 |================================================== Kernel LLVM 11.1 .. 9625.42 |================================================== Kernel GCC 11.1.1 . 9599.18 |================================================== Stress-NG 0.11.07 Test: Memory Copying Bogo Ops/s > Higher Is Better Kernel LLVM ....... 1019.43 |================================================== Kernel GCC ........ 1014.42 |================================================== Kernel LLVM 11.1 .. 1014.43 |================================================== Kernel GCC 11.1.1 . 1021.29 |================================================== Stress-NG 0.11.07 Test: Socket Activity Bogo Ops/s > Higher Is Better Kernel LLVM ....... 1877.82 |================================================ Kernel GCC ........ 1957.06 |================================================== Kernel LLVM 11.1 .. 1912.64 |================================================= Kernel GCC 11.1.1 . 1907.72 |================================================= Stress-NG 0.11.07 Test: Context Switching Bogo Ops/s > Higher Is Better Kernel LLVM ....... 548376.44 |============================================= Kernel GCC ........ 530566.53 |============================================ Kernel LLVM 11.1 .. 574464.00 |=============================================== Kernel GCC 11.1.1 . 580896.52 |================================================ Stress-NG 0.11.07 Test: Glibc C String Functions Bogo Ops/s > Higher Is Better Kernel LLVM ....... 112501.83 |================================================ Kernel GCC ........ 113135.64 |================================================ Kernel LLVM 11.1 .. 111451.53 |=============================================== Kernel GCC 11.1.1 . 112275.43 |================================================ Stress-NG 0.11.07 Test: Glibc Qsort Data Sorting Bogo Ops/s > Higher Is Better Kernel LLVM ....... 36.82 |==================================================== Kernel GCC ........ 36.74 |==================================================== Kernel LLVM 11.1 .. 36.44 |=================================================== Kernel GCC 11.1.1 . 36.56 |==================================================== Stress-NG 0.11.07 Test: System V Message Passing Bogo Ops/s > Higher Is Better Kernel LLVM ....... 4225731.83 |=========================================== Kernel GCC ........ 4626477.31 |=============================================== Kernel LLVM 11.1 .. 4244091.68 |=========================================== Kernel GCC 11.1.1 . 4546211.15 |============================================== ctx_clock Context Switch Time Clocks < Lower Is Better Kernel LLVM ....... 264 |===================================================== Kernel GCC ........ 266 |====================================================== Kernel LLVM 11.1 .. 264 |===================================================== Kernel GCC 11.1.1 . 268 |====================================================== Facebook RocksDB 6.3.6 Test: Random Fill Op/s > Higher Is Better Kernel LLVM ....... 452057 |================================================== Kernel GCC ........ 458917 |=================================================== Kernel LLVM 11.1 .. 449078 |================================================== Kernel GCC 11.1.1 . 371696 |========================================= Facebook RocksDB 6.3.6 Test: Random Read Op/s > Higher Is Better Kernel LLVM ....... 13123433 |================================================ Kernel GCC ........ 13347834 |================================================= Kernel LLVM 11.1 .. 13283954 |================================================= Kernel GCC 11.1.1 . 12925885 |=============================================== Facebook RocksDB 6.3.6 Test: Sequential Fill Op/s > Higher Is Better Kernel LLVM ....... 534770 |================================================== Kernel GCC ........ 544572 |=================================================== Kernel LLVM 11.1 .. 535796 |================================================== Kernel GCC 11.1.1 . 490354 |============================================== Facebook RocksDB 6.3.6 Test: Random Fill Sync Op/s > Higher Is Better Kernel LLVM ....... 490063 |================================================== Kernel GCC ........ 499640 |=================================================== Kernel LLVM 11.1 .. 490666 |================================================== Kernel GCC 11.1.1 . 418203 |=========================================== Facebook RocksDB 6.3.6 Test: Read While Writing Op/s > Higher Is Better Kernel LLVM ....... 244439 |================================================== Kernel GCC ........ 239799 |================================================= Kernel LLVM 11.1 .. 247556 |=================================================== Kernel GCC 11.1.1 . 236996 |================================================= Apache Benchmark 2.4.29 Static Web Page Serving Requests Per Second > Higher Is Better Kernel LLVM ....... 16754.67 |============================================= Kernel GCC ........ 18155.45 |================================================= Kernel LLVM 11.1 .. 16830.43 |============================================= Kernel GCC 11.1.1 . 17756.27 |================================================ Schbench Message Threads: 8 - Workers Per Message Thread: 4 usec, 99.9th Latency Percentile < Lower Is Better Kernel LLVM ....... 33519 |==================================================== Kernel GCC ........ 28597 |============================================ Kernel LLVM 11.1 .. 28747 |============================================= Kernel GCC 11.1.1 . 29393 |==============================================