Retbleed Mitigations AMD Zen 1 AMD Ryzen 7 1700 mitigation benchmarks by Michael Larabel for a future article. Current Linux Default: Processor: AMD Ryzen 7 1700 Eight-Core @ 3.00GHz (8 Cores / 16 Threads), Motherboard: MSI B350 TOMAHAWK (MS-7A34) v1.0 (1.Q6 BIOS), Chipset: AMD 17h, Memory: 16GB, Disk: 120GB Samsung SSD 840 + 32GB Flash Disk, Graphics: AMD Radeon RX 480 8GB (1266/2000MHz), Audio: AMD Ellesmere HDMI Audio, Monitor: DELL S2409W, Network: Realtek RTL8111/8168/8411 OS: Ubuntu 22.04, Kernel: 5.19.0-rc6-phx-retbleed (x86_64), Desktop: GNOME Shell 42.2, Display Server: X Server + Wayland, OpenGL: 4.6 Mesa 22.0.1 (LLVM 13.0.1 DRM 3.47), Vulkan: 1.3.204, Compiler: GCC 11.2.0, File-System: ext4, Screen Resolution: 1920x1080 mitigations=off: Processor: AMD Ryzen 7 1700 Eight-Core @ 3.00GHz (8 Cores / 16 Threads), Motherboard: MSI B350 TOMAHAWK (MS-7A34) v1.0 (1.Q6 BIOS), Chipset: AMD 17h, Memory: 16GB, Disk: 120GB Samsung SSD 840 + 32GB Flash Disk, Graphics: AMD Radeon RX 480 8GB (1266/2000MHz), Audio: AMD Ellesmere HDMI Audio, Monitor: DELL S2409W, Network: Realtek RTL8111/8168/8411 OS: Ubuntu 22.04, Kernel: 5.19.0-rc6-phx-retbleed (x86_64), Desktop: GNOME Shell 42.2, Display Server: X Server + Wayland, OpenGL: 4.6 Mesa 22.0.1 (LLVM 13.0.1 DRM 3.47), Vulkan: 1.3.204, Compiler: GCC 11.2.0, File-System: ext4, Screen Resolution: 1920x1080 retbleed=off: Processor: AMD Ryzen 7 1700 Eight-Core @ 3.00GHz (8 Cores / 16 Threads), Motherboard: MSI B350 TOMAHAWK (MS-7A34) v1.0 (1.Q6 BIOS), Chipset: AMD 17h, Memory: 16GB, Disk: 120GB Samsung SSD 840 + 32GB Flash Disk, Graphics: AMD Radeon RX 480 8GB (1266/2000MHz), Audio: AMD Ellesmere HDMI Audio, Monitor: DELL S2409W, Network: Realtek RTL8111/8168/8411 OS: Ubuntu 22.04, Kernel: 5.19.0-rc6-phx-retbleed (x86_64), Desktop: GNOME Shell 42.2, Display Server: X Server + Wayland, OpenGL: 4.6 Mesa 22.0.1 (LLVM 13.0.1 DRM 3.47), Vulkan: 1.3.204, Compiler: GCC 11.2.0, File-System: ext4, Screen Resolution: 1920x1080 mitigations=auto,nosmt: Processor: AMD Ryzen 7 1700 Eight-Core @ 3.00GHz (8 Cores), Motherboard: MSI B350 TOMAHAWK (MS-7A34) v1.0 (1.Q6 BIOS), Chipset: AMD 17h, Memory: 16GB, Disk: 120GB Samsung SSD 840 + 32GB Flash Disk, Graphics: AMD Radeon RX 480 8GB (1266/2000MHz), Audio: AMD Ellesmere HDMI Audio, Monitor: DELL S2409W, Network: Realtek RTL8111/8168/8411 OS: Ubuntu 22.04, Kernel: 5.19.0-rc6-phx-retbleed (x86_64), Desktop: GNOME Shell 42.2, Display Server: X Server + Wayland, OpenGL: 4.6 Mesa 22.0.1 (LLVM 13.0.1 DRM 3.47), Vulkan: 1.3.204, Compiler: GCC 11.2.0, File-System: ext4, Screen Resolution: 1920x1080 Timed Linux Kernel Compilation 5.18 Build: allmodconfig Seconds < Lower Is Better Current Linux Default .. 1827.79 |=================================== mitigations=off ........ 1830.36 |=================================== retbleed=off ........... 1855.37 |==================================== mitigations=auto,nosmt . 2336.39 |============================================= Timed Gem5 Compilation 21.2 Time To Compile Seconds < Lower Is Better Current Linux Default .. 681.17 |======================================== mitigations=off ........ 680.22 |======================================== retbleed=off ........... 680.69 |======================================== mitigations=auto,nosmt . 789.51 |============================================== ClickHouse 100M Rows Web Analytics Dataset, First Run / Cold Cache Queries Per Minute, Geo Mean > Higher Is Better Current Linux Default .. 78.38 |=============================================== mitigations=off ........ 77.10 |============================================== retbleed=off ........... 78.12 |=============================================== ClickHouse 100M Rows Web Analytics Dataset, Third Run Queries Per Minute, Geo Mean > Higher Is Better Current Linux Default .. 93.96 |============================================== mitigations=off ........ 96.99 |=============================================== retbleed=off ........... 94.71 |============================================== ClickHouse 100M Rows Web Analytics Dataset, Second Run Queries Per Minute, Geo Mean > Higher Is Better Current Linux Default .. 94.47 |=============================================== mitigations=off ........ 93.51 |=============================================== retbleed=off ........... 94.16 |=============================================== Hackbench Count: 32 - Type: Process Seconds < Lower Is Better Current Linux Default .. 153.59 |============================ mitigations=off ........ 137.73 |========================= retbleed=off ........... 144.19 |=========================== mitigations=auto,nosmt . 250.09 |============================================== Timed Linux Kernel Compilation 5.18 Build: defconfig Seconds < Lower Is Better Current Linux Default .. 148.02 |===================================== mitigations=off ........ 146.57 |===================================== retbleed=off ........... 148.29 |===================================== mitigations=auto,nosmt . 183.12 |============================================== Renaissance 0.14 Test: Apache Spark PageRank ms < Lower Is Better Current Linux Default .. 4943.3 |============================================== mitigations=off ........ 4827.6 |============================================= retbleed=off ........... 4880.8 |============================================= mitigations=auto,nosmt . 4584.8 |=========================================== Selenium Benchmark: Jetstream 2 - Browser: Firefox Score > Higher Is Better Current Linux Default .. 68.63 |========================================= mitigations=off ........ 70.76 |========================================== retbleed=off ........... 70.40 |========================================== mitigations=auto,nosmt . 79.10 |=============================================== Selenium Benchmark: Kraken - Browser: Firefox ms < Lower Is Better Current Linux Default .. 1384.1 |============================================== mitigations=off ........ 1222.6 |========================================= retbleed=off ........... 1351.0 |============================================= mitigations=auto,nosmt . 1347.4 |============================================= Timed Godot Game Engine Compilation 3.2.3 Time To Compile Seconds < Lower Is Better Current Linux Default .. 187.79 |======================================= mitigations=off ........ 186.62 |======================================= retbleed=off ........... 188.84 |======================================= mitigations=auto,nosmt . 221.52 |============================================== Selenium Benchmark: ARES-6 - Browser: Firefox ms < Lower Is Better Current Linux Default .. 52.37 |=============================================== mitigations=off ........ 52.13 |=============================================== retbleed=off ........... 52.08 |=============================================== mitigations=auto,nosmt . 46.08 |========================================= Ethr 1.0 Server Address: localhost - Protocol: TCP - Test: Latency - Threads: 32 us < Lower Is Better Current Linux Default .. 43.34 |=============================================== mitigations=off ........ 38.62 |========================================== retbleed=off ........... 43.59 |=============================================== mitigations=auto,nosmt . 21.72 |======================= Selenium Benchmark: Jetstream 2 - Browser: Google Chrome Score > Higher Is Better Current Linux Default .. 105.87 |======================================= mitigations=off ........ 107.56 |======================================== retbleed=off ........... 105.47 |======================================= mitigations=auto,nosmt . 125.07 |============================================== Git Time To Complete Common Git Commands Seconds < Lower Is Better Current Linux Default .. 59.96 |========================================== Current Linux Default .. 60.53 |=========================================== mitigations=off ........ 58.54 |========================================= retbleed=off ........... 58.39 |========================================= mitigations=auto,nosmt . 66.45 |=============================================== TensorFlow Lite 2022-05-18 Model: Mobilenet Quant Microseconds < Lower Is Better Current Linux Default .. 9253.16 |============================================= mitigations=off ........ 8777.54 |=========================================== retbleed=off ........... 8775.79 |=========================================== mitigations=auto,nosmt . 7020.24 |================================== Ethr 1.0 Server Address: localhost - Protocol: TCP - Test: Latency - Threads: 8 us < Lower Is Better Current Linux Default .. 43.35 |============================================== mitigations=off ........ 38.29 |========================================= retbleed=off ........... 44.05 |=============================================== mitigations=auto,nosmt . 20.35 |====================== KeyDB 6.2.0 Ops/sec > Higher Is Better Current Linux Default .. 346316.39 |================================== mitigations=off ........ 351271.34 |=================================== retbleed=off ........... 344872.87 |================================== mitigations=auto,nosmt . 433102.54 |=========================================== Selenium Benchmark: Speedometer - Browser: Firefox Runs Per Minute > Higher Is Better Current Linux Default .. 103.0 |=========================================== mitigations=off ........ 104.0 |============================================ retbleed=off ........... 105.0 |============================================ mitigations=auto,nosmt . 112.3 |=============================================== Selenium Benchmark: Kraken - Browser: Google Chrome ms < Lower Is Better Current Linux Default .. 982.7 |=============================================== mitigations=off ........ 921.7 |============================================ retbleed=off ........... 956.4 |============================================== mitigations=auto,nosmt . 904.5 |=========================================== Timed Mesa Compilation 21.0 Time To Compile Seconds < Lower Is Better Current Linux Default .. 81.78 |============================================ mitigations=off ........ 81.56 |============================================ retbleed=off ........... 81.70 |============================================ mitigations=auto,nosmt . 87.38 |=============================================== RawTherapee Total Benchmark Time Seconds < Lower Is Better Current Linux Default .. 85.83 |============================================ mitigations=off ........ 81.70 |========================================== retbleed=off ........... 83.98 |=========================================== mitigations=auto,nosmt . 90.88 |=============================================== SQLite Speedtest 3.30 Timed Time - Size 1,000 Seconds < Lower Is Better Current Linux Default .. 83.63 |========================================== Current Linux Default .. 83.33 |========================================== mitigations=off ........ 79.39 |======================================== retbleed=off ........... 80.68 |======================================== mitigations=auto,nosmt . 94.36 |=============================================== Ethr 1.0 Server Address: localhost - Protocol: TCP - Test: Latency - Threads: 1 us < Lower Is Better Current Linux Default .. 43.22 |=============================================== mitigations=off ........ 39.30 |=========================================== retbleed=off ........... 42.89 |=============================================== mitigations=auto,nosmt . 20.64 |====================== Hackbench Count: 16 - Type: Thread Seconds < Lower Is Better Current Linux Default .. 74.01 |============================ mitigations=off ........ 67.28 |========================== retbleed=off ........... 70.39 |=========================== mitigations=auto,nosmt . 120.67 |============================================== Stress-NG 0.14 Test: Context Switching Bogo Ops/s > Higher Is Better Current Linux Default .. 2011376.27 |==================================== mitigations=off ........ 2368740.14 |========================================== retbleed=off ........... 2125792.85 |====================================== mitigations=auto,nosmt . 1326955.21 |======================== Hackbench Count: 16 - Type: Process Seconds < Lower Is Better Current Linux Default .. 73.50 |============================ mitigations=off ........ 66.27 |========================== retbleed=off ........... 69.45 |=========================== mitigations=auto,nosmt . 119.27 |============================================== Selenium Benchmark: Octane - Browser: Firefox Geometric Mean > Higher Is Better Current Linux Default .. 21052 |============================================== mitigations=off ........ 21638 |=============================================== retbleed=off ........... 20965 |============================================== mitigations=auto,nosmt . 19512 |========================================== Selenium Benchmark: WASM imageConvolute - Browser: Firefox ms < Lower Is Better Current Linux Default .. 35.5 |=============================================== mitigations=off ........ 32.1 |=========================================== retbleed=off ........... 35.9 |================================================ mitigations=auto,nosmt . 35.4 |=============================================== GIMP 2.10.30 Test: resize Seconds < Lower Is Better Current Linux Default .. 24.90 |============================================ mitigations=off ........ 23.69 |========================================== retbleed=off ........... 23.57 |========================================== mitigations=auto,nosmt . 26.60 |=============================================== PostMark 1.51 Disk Transaction Performance TPS > Higher Is Better Current Linux Default .. 3676 |======================================= mitigations=off ........ 4491 |================================================ retbleed=off ........... 4214 |============================================= mitigations=auto,nosmt . 3571 |====================================== Selenium Benchmark: Speedometer - Browser: Google Chrome Runs Per Minute > Higher Is Better Current Linux Default .. 125.0 |============================================ mitigations=off ........ 125.0 |============================================ retbleed=off ........... 127.0 |============================================= mitigations=auto,nosmt . 133.8 |=============================================== Timed MPlayer Compilation 1.5 Time To Compile Seconds < Lower Is Better Current Linux Default .. 57.78 |======================================= mitigations=off ........ 57.37 |======================================= retbleed=off ........... 57.63 |======================================= mitigations=auto,nosmt . 69.60 |=============================================== Facebook RocksDB 7.0.1 Test: Read Random Write Random Op/s > Higher Is Better Current Linux Default .. 1002936 |=========================================== mitigations=off ........ 1022818 |============================================ retbleed=off ........... 1037740 |============================================= mitigations=auto,nosmt . 794060 |================================== Facebook RocksDB 7.0.1 Test: Update Random Op/s > Higher Is Better Current Linux Default .. 310652 |============================================= mitigations=off ........ 319614 |============================================== retbleed=off ........... 315445 |============================================= mitigations=auto,nosmt . 262498 |====================================== Stress-NG 0.14 Test: NUMA Bogo Ops/s > Higher Is Better Current Linux Default .. 140.88 |=========================================== mitigations=off ........ 152.41 |============================================== retbleed=off ........... 150.15 |============================================= mitigations=auto,nosmt . 119.47 |==================================== Selenium Benchmark: ARES-6 - Browser: Google Chrome ms < Lower Is Better Current Linux Default .. 26.60 |=============================================== mitigations=off ........ 26.18 |============================================== retbleed=off ........... 26.49 |=============================================== mitigations=auto,nosmt . 21.98 |======================================= Sockperf 3.7 Test: Latency Ping Pong usec < Lower Is Better Current Linux Default .. 12.125 |============================================== mitigations=off ........ 10.849 |========================================= retbleed=off ........... 11.832 |============================================= mitigations=auto,nosmt . 6.096 |======================= LevelDB 1.22 Benchmark: Sequential Fill Microseconds Per Op < Lower Is Better Current Linux Default .. 124.83 |============================================== mitigations=off ........ 118.64 |============================================ retbleed=off ........... 122.15 |============================================= mitigations=auto,nosmt . 33.28 |============ LevelDB 1.22 Benchmark: Sequential Fill MB/s > Higher Is Better Current Linux Default .. 14.2 |========================== mitigations=off ........ 14.9 |=========================== retbleed=off ........... 14.5 |========================== mitigations=auto,nosmt . 26.6 |================================================ LevelDB 1.22 Benchmark: Random Delete Microseconds Per Op < Lower Is Better Current Linux Default .. 115.19 |============================================== mitigations=off ........ 109.95 |============================================ retbleed=off ........... 112.95 |============================================= mitigations=auto,nosmt . 31.07 |============ Stress-NG 0.14 Test: MEMFD Bogo Ops/s > Higher Is Better Current Linux Default .. 363.76 |======================================== mitigations=off ........ 416.29 |============================================== retbleed=off ........... 404.05 |============================================= mitigations=auto,nosmt . 341.95 |====================================== Selenium Benchmark: Octane - Browser: Google Chrome Geometric Mean > Higher Is Better Current Linux Default .. 38460 |============================================ mitigations=off ........ 40948 |=============================================== retbleed=off ........... 40473 |============================================== mitigations=auto,nosmt . 37893 |=========================================== Cryptsetup AES-XTS 512b Decryption MiB/s > Higher Is Better Current Linux Default .. 2229.7 |============================================= mitigations=off ........ 2290.6 |============================================== retbleed=off ........... 2287.5 |============================================== mitigations=auto,nosmt . 1980.1 |======================================== Cryptsetup AES-XTS 512b Encryption MiB/s > Higher Is Better Current Linux Default .. 2223.6 |============================================ mitigations=off ........ 2302.8 |============================================== retbleed=off ........... 2295.6 |============================================== mitigations=auto,nosmt . 1982.6 |======================================== Cryptsetup AES-XTS 256b Decryption MiB/s > Higher Is Better Current Linux Default .. 2612.2 |============================================ mitigations=off ........ 2708.1 |============================================== retbleed=off ........... 2692.0 |============================================== mitigations=auto,nosmt . 2339.3 |======================================== Hackbench Count: 8 - Type: Thread Seconds < Lower Is Better Current Linux Default .. 35.42 |============================= mitigations=off ........ 31.79 |========================== retbleed=off ........... 33.53 |=========================== mitigations=auto,nosmt . 57.63 |=============================================== Selenium Benchmark: WASM collisionDetection - Browser: Firefox ms < Lower Is Better Current Linux Default .. 512.4 |=========================================== mitigations=off ........ 513.2 |=========================================== retbleed=off ........... 506.2 |========================================== mitigations=auto,nosmt . 561.9 |=============================================== Redis 6.0.9 Test: LPUSH Requests Per Second > Higher Is Better Current Linux Default .. 1103357.96 |========================================= mitigations=off ........ 1119872.38 |========================================== retbleed=off ........... 1115334.03 |========================================== mitigations=auto,nosmt . 1027352.98 |======================================= Redis 6.0.9 Test: SET Requests Per Second > Higher Is Better Current Linux Default .. 1330720.12 |========================================= mitigations=off ........ 1342551.72 |========================================= retbleed=off ........... 1364767.87 |========================================== mitigations=auto,nosmt . 1234329.42 |====================================== Hackbench Count: 8 - Type: Process Seconds < Lower Is Better Current Linux Default .. 34.75 |============================== mitigations=off ........ 31.41 |=========================== retbleed=off ........... 32.92 |============================ mitigations=auto,nosmt . 55.06 |=============================================== Ethr 1.0 Server Address: localhost - Protocol: UDP - Test: Bandwidth - Threads: 32 Packets/sec > Higher Is Better Current Linux Default .. 2207867 |========================================== mitigations=off ........ 2374267 |============================================= retbleed=off ........... 2221600 |========================================== mitigations=auto,nosmt . 1676400 |================================ Ethr 1.0 Server Address: localhost - Protocol: UDP - Test: Bandwidth - Threads: 8 Packets/sec > Higher Is Better Current Linux Default .. 1508267 |========================================= mitigations=off ........ 1668000 |============================================= retbleed=off ........... 1546800 |========================================== mitigations=auto,nosmt . 1314533 |=================================== Ethr 1.0 Server Address: localhost - Protocol: TCP - Test: Bandwidth - Threads: 8 Gbits/sec > Higher Is Better Current Linux Default .. 81.85 |============================================== mitigations=off ........ 84.03 |=============================================== retbleed=off ........... 82.52 |============================================== mitigations=auto,nosmt . 70.60 |======================================= Ethr 1.0 Server Address: localhost - Protocol: TCP - Test: Bandwidth - Threads: 1 Gbits/sec > Higher Is Better Current Linux Default .. 15.89 |========================================== mitigations=off ........ 17.08 |============================================= retbleed=off ........... 16.24 |=========================================== mitigations=auto,nosmt . 17.84 |=============================================== Ethr 1.0 Server Address: localhost - Protocol: UDP - Test: Bandwidth - Threads: 1 Packets/sec > Higher Is Better Current Linux Default .. 146881 |======================================= mitigations=off ........ 159640 |=========================================== retbleed=off ........... 152157 |========================================= mitigations=auto,nosmt . 172569 |============================================== DaCapo Benchmark 9.12-MR1 Java Test: Tradebeans msec < Lower Is Better Current Linux Default .. 7354 |================================================ mitigations=off ........ 7218 |=============================================== retbleed=off ........... 7191 |=============================================== mitigations=auto,nosmt . 4108 |=========================== OCRMyPDF 13.4.0+dfsg Processing 60 Page PDF Document Seconds < Lower Is Better Current Linux Default .. 31.55 |======================================= mitigations=off ........ 30.46 |===================================== retbleed=off ........... 31.48 |======================================= mitigations=auto,nosmt . 38.34 |=============================================== Timed Apache Compilation 2.4.41 Time To Compile Seconds < Lower Is Better Current Linux Default .. 31.52 |============================================== mitigations=off ........ 30.76 |============================================= retbleed=off ........... 30.84 |============================================= mitigations=auto,nosmt . 31.95 |=============================================== Stress-NG 0.14 Test: Malloc Bogo Ops/s > Higher Is Better Current Linux Default .. 4293451.01 |==================================== mitigations=off ........ 5062556.43 |========================================== retbleed=off ........... 4894036.46 |========================================= mitigations=auto,nosmt . 2746529.21 |======================= Stress-NG 0.14 Test: IO_uring Bogo Ops/s > Higher Is Better Current Linux Default .. 69877.76 |========================================== mitigations=off ........ 71748.34 |=========================================== retbleed=off ........... 70498.46 |========================================== mitigations=auto,nosmt . 73808.57 |============================================ Stress-NG 0.14 Test: SENDFILE Bogo Ops/s > Higher Is Better Current Linux Default .. 103861.72 |============================== mitigations=off ........ 147479.18 |=========================================== retbleed=off ........... 106607.63 |=============================== mitigations=auto,nosmt . 69619.07 |==================== Stress-NG 0.14 Test: Forking Bogo Ops/s > Higher Is Better Current Linux Default .. 36551.44 |========================================== mitigations=off ........ 38587.90 |============================================ retbleed=off ........... 38553.87 |============================================ mitigations=auto,nosmt . 25509.77 |============================= DaCapo Benchmark 9.12-MR1 Java Test: Jython msec < Lower Is Better Current Linux Default .. 6417 |=============================================== mitigations=off ........ 6310 |============================================== retbleed=off ........... 6313 |============================================== mitigations=auto,nosmt . 6521 |================================================ GIMP 2.10.30 Test: unsharp-mask Seconds < Lower Is Better Current Linux Default .. 27.37 |=============================================== mitigations=off ........ 25.47 |============================================ retbleed=off ........... 25.43 |============================================ mitigations=auto,nosmt . 24.87 |=========================================== GIMP 2.10.30 Test: auto-levels Seconds < Lower Is Better Current Linux Default .. 24.37 |=============================================== mitigations=off ........ 22.60 |============================================ retbleed=off ........... 22.68 |============================================ mitigations=auto,nosmt . 22.30 |=========================================== Selenium Benchmark: WASM imageConvolute - Browser: Google Chrome ms < Lower Is Better Current Linux Default .. 32.81 |====================================== mitigations=off ........ 33.15 |======================================= retbleed=off ........... 34.40 |======================================== mitigations=auto,nosmt . 40.13 |=============================================== GIMP 2.10.30 Test: rotate Seconds < Lower Is Better Current Linux Default .. 22.58 |=============================================== mitigations=off ........ 20.94 |============================================ retbleed=off ........... 20.99 |============================================ mitigations=auto,nosmt . 21.54 |============================================= Sockperf 3.7 Test: Throughput Messages Per Second > Higher Is Better Current Linux Default .. 396914 |====================================== mitigations=off ........ 477347 |============================================== retbleed=off ........... 428542 |========================================= mitigations=auto,nosmt . 375732 |==================================== Hackbench Count: 4 - Type: Thread Seconds < Lower Is Better Current Linux Default .. 18.41 |================================ mitigations=off ........ 16.67 |============================= retbleed=off ........... 17.56 |=============================== mitigations=auto,nosmt . 26.94 |=============================================== Hackbench Count: 4 - Type: Process Seconds < Lower Is Better Current Linux Default .. 17.85 |================================ mitigations=off ........ 16.10 |============================= retbleed=off ........... 16.90 |============================== mitigations=auto,nosmt . 26.13 |=============================================== Redis 6.0.9 Test: SADD Requests Per Second > Higher Is Better Current Linux Default .. 1533253.79 |======================================== mitigations=off ........ 1607270.29 |========================================== retbleed=off ........... 1588511.21 |========================================== mitigations=auto,nosmt . 1446745.00 |====================================== Selenium Benchmark: WASM collisionDetection - Browser: Google Chrome ms < Lower Is Better Current Linux Default .. 322.21 |========================================= mitigations=off ........ 315.92 |======================================== retbleed=off ........... 314.70 |======================================== mitigations=auto,nosmt . 364.48 |============================================== LevelDB 1.22 Benchmark: Random Fill Microseconds Per Op < Lower Is Better Current Linux Default .. 125.84 |============================================== mitigations=off ........ 119.41 |============================================ retbleed=off ........... 123.75 |============================================= mitigations=auto,nosmt . 38.41 |============== LevelDB 1.22 Benchmark: Random Fill MB/s > Higher Is Better Current Linux Default .. 14.0 |============================= mitigations=off ........ 14.8 |=============================== retbleed=off ........... 14.3 |============================== mitigations=auto,nosmt . 23.1 |================================================ LevelDB 1.22 Benchmark: Overwrite Microseconds Per Op < Lower Is Better Current Linux Default .. 125.44 |============================================== mitigations=off ........ 119.22 |============================================ retbleed=off ........... 123.08 |============================================= mitigations=auto,nosmt . 37.55 |============== LevelDB 1.22 Benchmark: Overwrite MB/s > Higher Is Better Current Linux Default .. 14.1 |============================ mitigations=off ........ 14.9 |============================== retbleed=off ........... 14.4 |============================= mitigations=auto,nosmt . 23.8 |================================================ LevelDB 1.22 Benchmark: Seek Random Microseconds Per Op < Lower Is Better Current Linux Default .. 15.197 |============================================== mitigations=off ........ 15.021 |============================================= retbleed=off ........... 15.246 |============================================== mitigations=auto,nosmt . 6.408 |=================== Hackbench Count: 2 - Type: Thread Seconds < Lower Is Better Current Linux Default .. 9.601 |================================ mitigations=off ........ 8.683 |============================= retbleed=off ........... 9.157 |============================== mitigations=auto,nosmt . 13.890 |============================================== Hackbench Count: 2 - Type: Process Seconds < Lower Is Better Current Linux Default .. 9.253 |================================ mitigations=off ........ 8.382 |============================= retbleed=off ........... 8.796 |============================== mitigations=auto,nosmt . 13.404 |============================================== OSBench Test: Create Files us Per Event < Lower Is Better Current Linux Default .. 28.76 |============================================= mitigations=off ........ 23.91 |===================================== retbleed=off ........... 25.99 |======================================== mitigations=auto,nosmt . 30.24 |=============================================== Hackbench Count: 1 - Type: Thread Seconds < Lower Is Better Current Linux Default .. 4.947 |================================ mitigations=off ........ 4.481 |============================= retbleed=off ........... 4.703 |=============================== mitigations=auto,nosmt . 7.224 |=============================================== Hackbench Count: 1 - Type: Process Seconds < Lower Is Better Current Linux Default .. 4.764 |================================ mitigations=off ........ 4.379 |============================== retbleed=off ........... 4.563 |=============================== mitigations=auto,nosmt . 6.953 |=============================================== OSBench Test: Memory Allocations Ns Per Event < Lower Is Better Current Linux Default .. 101.54 |============================================== Current Linux Default .. 98.14 |============================================ mitigations=off ........ 93.37 |========================================== retbleed=off ........... 94.64 |=========================================== mitigations=auto,nosmt . 97.77 |============================================ OSBench Test: Create Processes us Per Event < Lower Is Better Current Linux Default .. 52.41 |=============================================== mitigations=off ........ 46.78 |========================================== retbleed=off ........... 46.70 |========================================== mitigations=auto,nosmt . 51.88 |=============================================== OSBench Test: Launch Programs us Per Event < Lower Is Better Current Linux Default .. 67.16 |=============================================== mitigations=off ........ 59.85 |========================================== retbleed=off ........... 60.61 |========================================== mitigations=auto,nosmt . 63.65 |============================================= OSBench Test: Create Threads us Per Event < Lower Is Better Current Linux Default .. 23.47 |=============================================== mitigations=off ........ 20.84 |========================================== retbleed=off ........... 21.09 |========================================== mitigations=auto,nosmt . 22.87 |============================================== ctx_clock Context Switch Time Clocks < Lower Is Better Current Linux Default .. 300 |============================================= mitigations=off ........ 210 |=============================== retbleed=off ........... 210 |=============================== mitigations=auto,nosmt . 330 |=================================================