Ryzen 9 3950X Linux 6.0 Mitigations Benchmark Zen 2 mitigation benchmarks by Michael Larabel for a future article. Default: Processor: AMD Ryzen 9 3950X 16-Core @ 3.50GHz (16 Cores / 32 Threads), Motherboard: ASUS ROG CROSSHAIR VII HERO (WI-FI) (3103 BIOS), Chipset: AMD Starship/Matisse, Memory: 16GB, Disk: Samsung SSD 970 EVO 250GB, Graphics: Sapphire AMD Radeon RX 470 4GB (1260/1750MHz), Audio: AMD Ellesmere HDMI Audio, Monitor: DELL S2409W, Network: Intel I211 + Realtek RTL8822BE 802.11a/b/g/n/ac OS: Ubuntu 22.04, Kernel: 5.19.0-051900daily20220813-generic (x86_64), Desktop: GNOME Shell 42.2, Display Server: X Server + Wayland, OpenGL: 4.6 Mesa 22.0.5 (LLVM 13.0.1 DRM 3.48), Vulkan: 1.3.204, Compiler: GCC 11.2.0, File-System: ext4, Screen Resolution: 1920x1080 mitigations=off: Processor: AMD Ryzen 9 3950X 16-Core @ 3.50GHz (16 Cores / 32 Threads), Motherboard: ASUS ROG CROSSHAIR VII HERO (WI-FI) (3103 BIOS), Chipset: AMD Starship/Matisse, Memory: 16GB, Disk: Samsung SSD 970 EVO 250GB, Graphics: Sapphire AMD Radeon RX 470 4GB (1260/1750MHz), Audio: AMD Ellesmere HDMI Audio, Monitor: DELL S2409W, Network: Intel I211 + Realtek RTL8822BE 802.11a/b/g/n/ac OS: Ubuntu 22.04, Kernel: 5.19.0-051900daily20220813-generic (x86_64), Desktop: GNOME Shell 42.2, Display Server: X Server + Wayland, OpenGL: 4.6 Mesa 22.0.5 (LLVM 13.0.1 DRM 3.48), Vulkan: 1.3.204, Compiler: GCC 11.2.0, File-System: ext4, Screen Resolution: 1920x1080 retbleed=ibpb: Processor: AMD Ryzen 9 3950X 16-Core @ 3.50GHz (16 Cores / 32 Threads), Motherboard: ASUS ROG CROSSHAIR VII HERO (WI-FI) (3103 BIOS), Chipset: AMD Starship/Matisse, Memory: 16GB, Disk: Samsung SSD 970 EVO 250GB, Graphics: Sapphire AMD Radeon RX 470 4GB (1260/1750MHz), Audio: AMD Ellesmere HDMI Audio, Monitor: DELL S2409W, Network: Intel I211 + Realtek RTL8822BE 802.11a/b/g/n/ac OS: Ubuntu 22.04, Kernel: 5.19.0-051900daily20220813-generic (x86_64), Desktop: GNOME Shell 42.2, Display Server: X Server + Wayland, OpenGL: 4.6 Mesa 22.0.5 (LLVM 13.0.1 DRM 3.48), Vulkan: 1.3.204, Compiler: GCC 11.2.0, File-System: ext4, Screen Resolution: 1920x1080 retbleed=ibpb spectre_v2=on: Processor: AMD Ryzen 9 3950X 16-Core @ 3.50GHz (16 Cores / 32 Threads), Motherboard: ASUS ROG CROSSHAIR VII HERO (WI-FI) (3103 BIOS), Chipset: AMD Starship/Matisse, Memory: 16GB, Disk: Samsung SSD 970 EVO 250GB, Graphics: Sapphire AMD Radeon RX 470 4GB (1260/1750MHz), Audio: AMD Ellesmere HDMI Audio, Monitor: DELL S2409W, Network: Intel I211 + Realtek RTL8822BE 802.11a/b/g/n/ac OS: Ubuntu 22.04, Kernel: 5.19.0-051900daily20220813-generic (x86_64), Desktop: GNOME Shell 42.2, Display Server: X Server + Wayland, OpenGL: 4.6 Mesa 22.0.5 (LLVM 13.0.1 DRM 3.48), Vulkan: 1.3.204, Compiler: GCC 11.2.0, File-System: ext4, Screen Resolution: 1920x1080 retbleed=ibpb spectre_v2=on nosmt: Processor: AMD Ryzen 9 3950X 16-Core @ 3.50GHz (16 Cores), Motherboard: ASUS ROG CROSSHAIR VII HERO (WI-FI) (3103 BIOS), Chipset: AMD Starship/Matisse, Memory: 16GB, Disk: Samsung SSD 970 EVO 250GB, Graphics: Sapphire AMD Radeon RX 470 4GB (1260/1750MHz), Audio: AMD Ellesmere HDMI Audio, Monitor: DELL S2409W, Network: Intel I211 + Realtek RTL8822BE 802.11a/b/g/n/ac OS: Ubuntu 22.04, Kernel: 5.19.0-051900daily20220813-generic (x86_64), Desktop: GNOME Shell 42.2, Display Server: X Server + Wayland, OpenGL: 4.6 Mesa 22.0.5 (LLVM 13.0.1 DRM 3.48), Vulkan: 1.3.204, Compiler: GCC 11.2.0, File-System: ext4, Screen Resolution: 1920x1080 LuaRadio 0.9.1 Test: Five Back to Back FIR Filters MiB/s > Higher Is Better Default ........................... 868.9 |================================== mitigations=off ................... 924.7 |==================================== retbleed=ibpb ..................... 863.6 |================================== retbleed=ibpb spectre_v2=on ....... 838.4 |================================= retbleed=ibpb spectre_v2=on nosmt . 650.2 |========================= Renaissance 0.14 Test: ALS Movie Lens ms < Lower Is Better Default ........................... 13162.7 |========================== mitigations=off ................... 13019.1 |========================== retbleed=ibpb ..................... 16937.8 |================================== retbleed=ibpb spectre_v2=on ....... 16916.4 |================================== retbleed=ibpb spectre_v2=on nosmt . 15340.7 |=============================== WireGuard + Linux Networking Stack Stress Test Seconds < Lower Is Better Default ........................... 214.26 |======================== mitigations=off ................... 200.14 |======================= retbleed=ibpb ..................... 302.49 |=================================== retbleed=ibpb spectre_v2=on ....... 306.37 |=================================== retbleed=ibpb spectre_v2=on nosmt . 302.50 |=================================== Apache Spark 3.3 Row Count: 20000000 - Partitions: 100 - Group By Test Time Seconds < Lower Is Better Default ........................... 12.80 |=================================== mitigations=off ................... 12.26 |================================= retbleed=ibpb ..................... 13.16 |==================================== retbleed=ibpb spectre_v2=on ....... 13.30 |==================================== retbleed=ibpb spectre_v2=on nosmt . 13.01 |=================================== Apache Spark 3.3 Row Count: 20000000 - Partitions: 100 - Calculate Pi Benchmark Seconds < Lower Is Better Default ........................... 105.70 |================================== mitigations=off ................... 91.58 |============================= retbleed=ibpb ..................... 94.16 |============================== retbleed=ibpb spectre_v2=on ....... 109.19 |=================================== retbleed=ibpb spectre_v2=on nosmt . 103.56 |================================= Apache Spark 3.3 Row Count: 20000000 - Partitions: 500 - Inner Join Test Time Seconds < Lower Is Better Default ........................... 24.30 |==================================== mitigations=off ................... 23.68 |=================================== retbleed=ibpb ..................... 24.52 |==================================== retbleed=ibpb spectre_v2=on ....... 24.05 |=================================== retbleed=ibpb spectre_v2=on nosmt . 21.51 |================================ Apache Spark 3.3 Row Count: 20000000 - Partitions: 500 - Repartition Test Time Seconds < Lower Is Better Default ........................... 21.37 |==================================== mitigations=off ................... 20.96 |=================================== retbleed=ibpb ..................... 21.34 |==================================== retbleed=ibpb spectre_v2=on ....... 21.29 |==================================== retbleed=ibpb spectre_v2=on nosmt . 18.56 |=============================== Apache Spark 3.3 Row Count: 20000000 - Partitions: 500 - Calculate Pi Benchmark Seconds < Lower Is Better Default ........................... 105.14 |================================== mitigations=off ................... 91.20 |============================= retbleed=ibpb ..................... 94.48 |============================== retbleed=ibpb spectre_v2=on ....... 108.93 |=================================== retbleed=ibpb spectre_v2=on nosmt . 103.60 |================================= Memtier_benchmark 1.3 Protocol: Redis Ops/sec > Higher Is Better Default ........................... 2220557.34 |=============================== mitigations=off ................... 2218502.81 |=============================== retbleed=ibpb ..................... 2006224.43 |============================ retbleed=ibpb spectre_v2=on ....... 1988745.57 |============================ retbleed=ibpb spectre_v2=on nosmt . 1937718.00 |=========================== nginx 1.21.1 Concurrent Requests: 1 Requests Per Second > Higher Is Better Default ........................... 49382.88 |============================= mitigations=off ................... 56612.56 |================================= retbleed=ibpb ..................... 20712.40 |============ retbleed=ibpb spectre_v2=on ....... 20664.66 |============ retbleed=ibpb spectre_v2=on nosmt . 29830.25 |================= GROMACS 2022.1 Implementation: MPI CPU - Input: water_GMX50_bare Ns Per Day > Higher Is Better Default ........................... 1.227 |==================================== mitigations=off ................... 1.227 |==================================== retbleed=ibpb ..................... 1.222 |==================================== retbleed=ibpb spectre_v2=on ....... 1.222 |==================================== retbleed=ibpb spectre_v2=on nosmt . 1.232 |==================================== Renaissance 0.14 Test: Genetic Algorithm Using Jenetics + Futures ms < Lower Is Better Default ........................... 2878.9 |=============================== mitigations=off ................... 2865.0 |=============================== retbleed=ibpb ..................... 3179.9 |=================================== retbleed=ibpb spectre_v2=on ....... 3221.1 |=================================== retbleed=ibpb spectre_v2=on nosmt . 1690.7 |================== Stargate Digital Audio Workstation 21.10.9 Sample Rate: 44100 - Buffer Size: 512 Render Ratio > Higher Is Better Default ........................... 5.132632 |================================ mitigations=off ................... 5.259331 |================================= retbleed=ibpb ..................... 4.737688 |============================== retbleed=ibpb spectre_v2=on ....... 4.944057 |=============================== retbleed=ibpb spectre_v2=on nosmt . 5.075336 |================================ Stargate Digital Audio Workstation 21.10.9 Sample Rate: 96000 - Buffer Size: 512 Render Ratio > Higher Is Better Default ........................... 3.883713 |================================= mitigations=off ................... 3.919670 |================================= retbleed=ibpb ..................... 3.520352 |============================== retbleed=ibpb spectre_v2=on ....... 3.182824 |=========================== retbleed=ibpb spectre_v2=on nosmt . 3.626779 |=============================== Apache Cassandra 4.0 Test: Writes Op/s > Higher Is Better Default ........................... 156420 |================================= mitigations=off ................... 166783 |=================================== retbleed=ibpb ..................... 123724 |========================== retbleed=ibpb spectre_v2=on ....... 122019 |========================== retbleed=ibpb spectre_v2=on nosmt . 71705 |=============== Stress-NG 0.14 Test: Futex Bogo Ops/s > Higher Is Better Default ........................... 4960793.44 |=========================== mitigations=off ................... 5674415.95 |=============================== retbleed=ibpb ..................... 2102526.60 |=========== retbleed=ibpb spectre_v2=on ....... 1694057.10 |========= retbleed=ibpb spectre_v2=on nosmt . 1044265.16 |====== Hackbench Count: 32 - Type: Process Seconds < Lower Is Better Default ........................... 56.60 |========= mitigations=off ................... 47.47 |======== retbleed=ibpb ..................... 138.09 |====================== retbleed=ibpb spectre_v2=on ....... 147.74 |======================= retbleed=ibpb spectre_v2=on nosmt . 221.42 |=================================== PostMark 1.51 Disk Transaction Performance TPS > Higher Is Better Default ........................... 5906 |============================= mitigations=off ................... 7504 |===================================== retbleed=ibpb ..................... 2578 |============= retbleed=ibpb spectre_v2=on ....... 2501 |============ retbleed=ibpb spectre_v2=on nosmt . 2450 |============ Stargate Digital Audio Workstation 21.10.9 Sample Rate: 96000 - Buffer Size: 1024 Render Ratio > Higher Is Better Default ........................... 4.205922 |================================= mitigations=off ................... 4.262229 |================================= retbleed=ibpb ..................... 3.937179 |============================== retbleed=ibpb spectre_v2=on ....... 3.932585 |============================== retbleed=ibpb spectre_v2=on nosmt . 3.820665 |============================== Selenium Benchmark: Jetstream 2 - Browser: Google Chrome Score > Higher Is Better Default ........................... 172.75 |================================= mitigations=off ................... 177.03 |================================== retbleed=ibpb ..................... 161.33 |=============================== retbleed=ibpb spectre_v2=on ....... 159.72 |=============================== retbleed=ibpb spectre_v2=on nosmt . 182.39 |=================================== InfluxDB 1.8.2 Concurrent Streams: 4 - Batch Size: 10000 - Tags: 2,5000,1 - Points Per Series: 10000 val/sec > Higher Is Better Default ........................... 849704.4 |==================== mitigations=off ................... 834613.9 |==================== retbleed=ibpb ..................... 906678.8 |====================== retbleed=ibpb spectre_v2=on ....... 889855.0 |===================== retbleed=ibpb spectre_v2=on nosmt . 1342020.3 |================================ Stargate Digital Audio Workstation 21.10.9 Sample Rate: 480000 - Buffer Size: 1024 Render Ratio > Higher Is Better Default ........................... 5.463150 |================================= mitigations=off ................... 5.509905 |================================= retbleed=ibpb ..................... 5.265175 |================================ retbleed=ibpb spectre_v2=on ....... 5.285263 |================================ retbleed=ibpb spectre_v2=on nosmt . 5.360599 |================================ SQLite Speedtest 3.30 Timed Time - Size 1,000 Seconds < Lower Is Better Default ........................... 60.35 |================ mitigations=off ................... 55.00 |============== retbleed=ibpb ..................... 127.80 |================================= retbleed=ibpb spectre_v2=on ....... 131.54 |================================== retbleed=ibpb spectre_v2=on nosmt . 134.76 |=================================== KeyDB 6.2.0 Ops/sec > Higher Is Better Default ........................... 555290.25 |============================== mitigations=off ................... 600946.79 |================================ retbleed=ibpb ..................... 301117.97 |================ retbleed=ibpb spectre_v2=on ....... 297634.34 |================ retbleed=ibpb spectre_v2=on nosmt . 337107.71 |================== Apache HTTP Server 2.4.48 Concurrent Requests: 1 Requests Per Second > Higher Is Better Default ........................... 9543.29 |============================== mitigations=off ................... 10608.67 |================================= retbleed=ibpb ..................... 5523.09 |================= retbleed=ibpb spectre_v2=on ....... 5439.32 |================= retbleed=ibpb spectre_v2=on nosmt . 10129.16 |================================ Apache HTTP Server 2.4.48 Concurrent Requests: 1000 Requests Per Second > Higher Is Better Default ........................... 54929.69 |============================== mitigations=off ................... 55587.58 |============================== retbleed=ibpb ..................... 55162.09 |============================== retbleed=ibpb spectre_v2=on ....... 55127.26 |============================== retbleed=ibpb spectre_v2=on nosmt . 60459.88 |================================= Apache HTTP Server 2.4.48 Concurrent Requests: 500 Requests Per Second > Higher Is Better Default ........................... 55168.30 |============================== mitigations=off ................... 56022.25 |============================== retbleed=ibpb ..................... 55131.26 |============================== retbleed=ibpb spectre_v2=on ....... 55356.80 |============================== retbleed=ibpb spectre_v2=on nosmt . 60779.72 |================================= Apache HTTP Server 2.4.48 Concurrent Requests: 200 Requests Per Second > Higher Is Better Default ........................... 52762.31 |============================= mitigations=off ................... 54782.41 |============================== retbleed=ibpb ..................... 51659.41 |============================ retbleed=ibpb spectre_v2=on ....... 51569.13 |============================ retbleed=ibpb spectre_v2=on nosmt . 60458.70 |================================= nginx 1.21.1 Concurrent Requests: 1000 Requests Per Second > Higher Is Better Default ........................... 257129.85 |============================ mitigations=off ................... 298369.31 |================================ retbleed=ibpb ..................... 222660.55 |======================== retbleed=ibpb spectre_v2=on ....... 215234.93 |======================= retbleed=ibpb spectre_v2=on nosmt . 263696.39 |============================ nginx 1.21.1 Concurrent Requests: 500 Requests Per Second > Higher Is Better Default ........................... 257344.77 |============================ mitigations=off ................... 299314.90 |================================ retbleed=ibpb ..................... 221507.79 |======================== retbleed=ibpb spectre_v2=on ....... 215408.91 |======================= retbleed=ibpb spectre_v2=on nosmt . 263560.20 |============================ nginx 1.21.1 Concurrent Requests: 100 Requests Per Second > Higher Is Better Default ........................... 255336.64 |=========================== mitigations=off ................... 299015.72 |================================ retbleed=ibpb ..................... 220224.99 |======================== retbleed=ibpb spectre_v2=on ....... 213755.99 |======================= retbleed=ibpb spectre_v2=on nosmt . 267291.25 |============================= Apache HTTP Server 2.4.48 Concurrent Requests: 100 Requests Per Second > Higher Is Better Default ........................... 56712.95 |================================ mitigations=off ................... 57832.11 |================================= retbleed=ibpb ..................... 56503.13 |================================ retbleed=ibpb spectre_v2=on ....... 55347.49 |================================ retbleed=ibpb spectre_v2=on nosmt . 57332.87 |================================= nginx 1.21.1 Concurrent Requests: 200 Requests Per Second > Higher Is Better Default ........................... 256535.31 |=========================== mitigations=off ................... 301149.26 |================================ retbleed=ibpb ..................... 221738.81 |======================== retbleed=ibpb spectre_v2=on ....... 214677.17 |======================= retbleed=ibpb spectre_v2=on nosmt . 265599.52 |============================ nginx 1.21.1 Concurrent Requests: 20 Requests Per Second > Higher Is Better Default ........................... 260435.54 |============================ mitigations=off ................... 293758.51 |================================ retbleed=ibpb ..................... 225554.08 |========================= retbleed=ibpb spectre_v2=on ....... 218530.10 |======================== retbleed=ibpb spectre_v2=on nosmt . 266600.54 |============================= Apache HTTP Server 2.4.48 Concurrent Requests: 20 Requests Per Second > Higher Is Better Default ........................... 61666.41 |=============================== mitigations=off ................... 65653.49 |================================= retbleed=ibpb ..................... 60591.68 |============================== retbleed=ibpb spectre_v2=on ....... 59088.55 |============================== retbleed=ibpb spectre_v2=on nosmt . 47678.26 |======================== Timed Godot Game Engine Compilation 3.2.3 Time To Compile Seconds < Lower Is Better Default ........................... 74.42 |========================= mitigations=off ................... 72.95 |========================= retbleed=ibpb ..................... 86.86 |============================= retbleed=ibpb spectre_v2=on ....... 88.05 |============================== retbleed=ibpb spectre_v2=on nosmt . 103.35 |=================================== InfluxDB 1.8.2 Concurrent Streams: 64 - Batch Size: 10000 - Tags: 2,5000,1 - Points Per Series: 10000 val/sec > Higher Is Better Default ........................... 1239577.0 |=========================== mitigations=off ................... 1246610.8 |============================ retbleed=ibpb ..................... 1274721.6 |============================ retbleed=ibpb spectre_v2=on ....... 1268118.7 |============================ retbleed=ibpb spectre_v2=on nosmt . 1444954.3 |================================ Node.js V8 Web Tooling Benchmark runs/s > Higher Is Better Default ........................... 11.39 |==================================== mitigations=off ................... 11.07 |=================================== retbleed=ibpb ..................... 10.71 |================================== retbleed=ibpb spectre_v2=on ....... 10.71 |================================== retbleed=ibpb spectre_v2=on nosmt . 10.90 |================================== Renaissance 0.14 Test: In-Memory Database Shootout ms < Lower Is Better Default ........................... 4168.1 |========================== mitigations=off ................... 3905.4 |========================= retbleed=ibpb ..................... 5511.6 |=================================== retbleed=ibpb spectre_v2=on ....... 5575.1 |=================================== retbleed=ibpb spectre_v2=on nosmt . 4071.4 |========================== Stress-NG 0.14 Test: Socket Activity Bogo Ops/s > Higher Is Better Default ........................... 8838.08 |=============================== mitigations=off ................... 9564.50 |================================== retbleed=ibpb ..................... 6557.16 |======================= retbleed=ibpb spectre_v2=on ....... 6538.13 |======================= retbleed=ibpb spectre_v2=on nosmt . 4722.43 |================= Hackbench Count: 8 - Type: Thread Seconds < Lower Is Better Default ........................... 17.96 |=========== mitigations=off ................... 17.42 |=========== retbleed=ibpb ..................... 31.87 |==================== retbleed=ibpb spectre_v2=on ....... 35.87 |======================= retbleed=ibpb spectre_v2=on nosmt . 57.14 |==================================== PyPerformance 1.0.0 Benchmark: python_startup Milliseconds < Lower Is Better Default ........................... 7.44 |=========================== mitigations=off ................... 7.17 |========================== retbleed=ibpb ..................... 10.10 |==================================== retbleed=ibpb spectre_v2=on ....... 10.10 |==================================== retbleed=ibpb spectre_v2=on nosmt . 9.91 |=================================== Compile Bench 0.6 Test: Initial Create MB/s > Higher Is Better Default ........................... 514.56 |============================== mitigations=off ................... 606.28 |=================================== retbleed=ibpb ..................... 240.60 |============== retbleed=ibpb spectre_v2=on ....... 242.55 |============== retbleed=ibpb spectre_v2=on nosmt . 235.39 |============== Timed Linux Kernel Compilation 5.18 Build: defconfig Seconds < Lower Is Better Default ........................... 53.67 |======================== mitigations=off ................... 52.38 |======================= retbleed=ibpb ..................... 66.26 |============================= retbleed=ibpb spectre_v2=on ....... 67.04 |============================= retbleed=ibpb spectre_v2=on nosmt . 81.85 |==================================== Hackbench Count: 16 - Type: Thread Seconds < Lower Is Better Default ........................... 25.61 |======== mitigations=off ................... 22.37 |======= retbleed=ibpb ..................... 63.89 |==================== retbleed=ibpb spectre_v2=on ....... 75.32 |======================== retbleed=ibpb spectre_v2=on nosmt . 111.91 |=================================== RawTherapee Total Benchmark Time Seconds < Lower Is Better Default ........................... 54.41 |================================ mitigations=off ................... 53.10 |=============================== retbleed=ibpb ..................... 58.84 |================================== retbleed=ibpb spectre_v2=on ....... 59.15 |=================================== retbleed=ibpb spectre_v2=on nosmt . 61.56 |==================================== Hackbench Count: 16 - Type: Process Seconds < Lower Is Better Default ........................... 25.04 |======== mitigations=off ................... 20.88 |======= retbleed=ibpb ..................... 63.95 |===================== retbleed=ibpb spectre_v2=on ....... 69.19 |====================== retbleed=ibpb spectre_v2=on nosmt . 108.64 |=================================== Stargate Digital Audio Workstation 21.10.9 Sample Rate: 44100 - Buffer Size: 1024 Render Ratio > Higher Is Better Default ........................... 5.615871 |================================= mitigations=off ................... 5.647994 |================================= retbleed=ibpb ..................... 5.324162 |=============================== retbleed=ibpb spectre_v2=on ....... 5.214571 |============================== retbleed=ibpb spectre_v2=on nosmt . 5.518860 |================================ Selenium Benchmark: ARES-6 - Browser: Google Chrome ms < Lower Is Better Default ........................... 15.89 |================================== mitigations=off ................... 15.58 |================================= retbleed=ibpb ..................... 16.79 |==================================== retbleed=ibpb spectre_v2=on ....... 16.44 |=================================== retbleed=ibpb spectre_v2=on nosmt . 14.11 |============================== ASTC Encoder 4.0 Preset: Exhaustive MT/s > Higher Is Better Default ........................... 1.0449 |=================================== mitigations=off ................... 1.0451 |=================================== retbleed=ibpb ..................... 1.0448 |=================================== retbleed=ibpb spectre_v2=on ....... 1.0429 |=================================== retbleed=ibpb spectre_v2=on nosmt . 0.8887 |============================== Selenium Benchmark: Speedometer - Browser: Google Chrome Runs Per Minute > Higher Is Better Default ........................... 212 |====================================== mitigations=off ................... 211 |====================================== retbleed=ibpb ..................... 187 |================================== retbleed=ibpb spectre_v2=on ....... 187 |================================== retbleed=ibpb spectre_v2=on nosmt . 194 |=================================== Selenium Benchmark: Octane - Browser: Google Chrome Geometric Mean > Higher Is Better Default ........................... 58308 |=================================== mitigations=off ................... 59134 |==================================== retbleed=ibpb ..................... 56488 |================================== retbleed=ibpb spectre_v2=on ....... 56525 |================================== retbleed=ibpb spectre_v2=on nosmt . 56246 |================================== DaCapo Benchmark 9.12-MR1 Java Test: Tradesoap msec < Lower Is Better Default ........................... 3504 |================================== mitigations=off ................... 3394 |================================= retbleed=ibpb ..................... 3834 |===================================== retbleed=ibpb spectre_v2=on ....... 3840 |===================================== retbleed=ibpb spectre_v2=on nosmt . 3144 |============================== LibreOffice Test: 20 Documents To PDF Seconds < Lower Is Better Default ........................... 6.915 |=============================== mitigations=off ................... 6.707 |============================== retbleed=ibpb ..................... 7.570 |================================== retbleed=ibpb spectre_v2=on ....... 7.525 |================================== retbleed=ibpb spectre_v2=on nosmt . 7.924 |==================================== PyPerformance 1.0.0 Benchmark: django_template Milliseconds < Lower Is Better Default ........................... 38.0 |===================================== mitigations=off ................... 38.0 |===================================== retbleed=ibpb ..................... 37.0 |==================================== retbleed=ibpb spectre_v2=on ....... 37.1 |==================================== retbleed=ibpb spectre_v2=on nosmt . 38.4 |===================================== Timed Mesa Compilation 21.0 Time To Compile Seconds < Lower Is Better Default ........................... 33.41 |================================ mitigations=off ................... 33.26 |================================ retbleed=ibpb ..................... 36.32 |=================================== retbleed=ibpb spectre_v2=on ....... 36.41 |=================================== retbleed=ibpb spectre_v2=on nosmt . 37.19 |==================================== Selenium Benchmark: PSPDFKit WASM - Browser: Google Chrome Score < Lower Is Better Default ........................... 2891 |================================= mitigations=off ................... 2852 |================================ retbleed=ibpb ..................... 3268 |===================================== retbleed=ibpb spectre_v2=on ....... 3267 |===================================== retbleed=ibpb spectre_v2=on nosmt . 2960 |================================== Stress-NG 0.14 Test: MMAP Bogo Ops/s > Higher Is Better Default ........................... 287.61 |================================== mitigations=off ................... 294.75 |=================================== retbleed=ibpb ..................... 249.86 |============================== retbleed=ibpb spectre_v2=on ....... 230.11 |=========================== retbleed=ibpb spectre_v2=on nosmt . 254.15 |============================== ASTC Encoder 4.0 Preset: Thorough MT/s > Higher Is Better Default ........................... 9.5416 |=================================== mitigations=off ................... 9.5490 |=================================== retbleed=ibpb ..................... 9.5506 |=================================== retbleed=ibpb spectre_v2=on ....... 9.5182 |=================================== retbleed=ibpb spectre_v2=on nosmt . 8.3786 |=============================== Stress-NG 0.14 Test: Malloc Bogo Ops/s > Higher Is Better Default ........................... 23110108.89 |======================== mitigations=off ................... 28438903.40 |============================== retbleed=ibpb ..................... 6167954.31 |======= retbleed=ibpb spectre_v2=on ....... 6039417.12 |====== retbleed=ibpb spectre_v2=on nosmt . 4213740.42 |==== Google SynthMark 20201109 Test: VoiceMark_100 Voices > Higher Is Better Default ........................... 790.98 |================================== mitigations=off ................... 820.38 |=================================== retbleed=ibpb ..................... 782.18 |================================= retbleed=ibpb spectre_v2=on ....... 816.40 |=================================== retbleed=ibpb spectre_v2=on nosmt . 761.09 |================================ Stress-NG 0.14 Test: SENDFILE Bogo Ops/s > Higher Is Better Default ........................... 293235.64 |======================= mitigations=off ................... 412629.17 |================================ retbleed=ibpb ..................... 305358.03 |======================== retbleed=ibpb spectre_v2=on ....... 301936.36 |======================= retbleed=ibpb spectre_v2=on nosmt . 214958.36 |================= Stress-NG 0.14 Test: System V Message Passing Bogo Ops/s > Higher Is Better Default ........................... 9616996.63 |============================== mitigations=off ................... 9836938.88 |=============================== retbleed=ibpb ..................... 6092876.52 |=================== retbleed=ibpb spectre_v2=on ....... 5819643.79 |================== retbleed=ibpb spectre_v2=on nosmt . 4221595.08 |============= PyPerformance 1.0.0 Benchmark: regex_compile Milliseconds < Lower Is Better Default ........................... 151 |===================================== mitigations=off ................... 150 |===================================== retbleed=ibpb ..................... 148 |==================================== retbleed=ibpb spectre_v2=on ....... 147 |==================================== retbleed=ibpb spectre_v2=on nosmt . 155 |====================================== Inkscape Operation: SVG Files To PNG Seconds < Lower Is Better Default ........................... 24.46 |=========================== mitigations=off ................... 23.74 |=========================== retbleed=ibpb ..................... 32.04 |==================================== retbleed=ibpb spectre_v2=on ....... 32.16 |==================================== retbleed=ibpb spectre_v2=on nosmt . 32.16 |==================================== DaCapo Benchmark 9.12-MR1 Java Test: H2 msec < Lower Is Better Default ........................... 3644 |=================================== mitigations=off ................... 3534 |================================= retbleed=ibpb ..................... 3849 |==================================== retbleed=ibpb spectre_v2=on ....... 3907 |===================================== retbleed=ibpb spectre_v2=on nosmt . 2596 |========================= Redis 6.0.9 Test: SET Requests Per Second > Higher Is Better Default ........................... 1853189.96 |============================== mitigations=off ................... 1939841.82 |=============================== retbleed=ibpb ..................... 1374092.29 |====================== retbleed=ibpb spectre_v2=on ....... 1364607.38 |====================== retbleed=ibpb spectre_v2=on nosmt . 1327456.50 |===================== Redis 6.0.9 Test: GET Requests Per Second > Higher Is Better Default ........................... 2587396.87 |=============================== mitigations=off ................... 2495320.75 |============================== retbleed=ibpb ..................... 1627014.00 |=================== retbleed=ibpb spectre_v2=on ....... 1620511.60 |=================== retbleed=ibpb spectre_v2=on nosmt . 1573874.50 |=================== Hackbench Count: 8 - Type: Process Seconds < Lower Is Better Default ........................... 13.25 |========= mitigations=off ................... 11.08 |======== retbleed=ibpb ..................... 31.18 |===================== retbleed=ibpb spectre_v2=on ....... 33.38 |======================= retbleed=ibpb spectre_v2=on nosmt . 52.78 |==================================== LuaJIT 2.1-git Test: Composite Mflops > Higher Is Better Default ........................... 1654.91 |================================= mitigations=off ................... 1726.41 |================================== retbleed=ibpb ..................... 1706.81 |================================== retbleed=ibpb spectre_v2=on ....... 1655.74 |================================= retbleed=ibpb spectre_v2=on nosmt . 1640.69 |================================ ebizzy 0.3 Records/s > Higher Is Better Default ........................... 1413624 |================================== mitigations=off ................... 1409922 |================================== retbleed=ibpb ..................... 1355964 |================================= retbleed=ibpb spectre_v2=on ....... 1369472 |================================= retbleed=ibpb spectre_v2=on nosmt . 1272519 |=============================== PyBench 2018-02-16 Total For Average Test Times Milliseconds < Lower Is Better Default ........................... 953 |===================================== mitigations=off ................... 930 |==================================== retbleed=ibpb ..................... 948 |===================================== retbleed=ibpb spectre_v2=on ....... 917 |==================================== retbleed=ibpb spectre_v2=on nosmt . 977 |====================================== Selenium Benchmark: Kraken - Browser: Google Chrome ms < Lower Is Better Default ........................... 601.1 |================================== mitigations=off ................... 603.9 |================================== retbleed=ibpb ..................... 630.2 |==================================== retbleed=ibpb spectre_v2=on ....... 623.7 |==================================== retbleed=ibpb spectre_v2=on nosmt . 585.0 |================================= Node.js Express HTTP Load Test Requests Per Second > Higher Is Better Default ........................... 6863 |==================================== mitigations=off ................... 7064 |===================================== retbleed=ibpb ..................... 4559 |======================== retbleed=ibpb spectre_v2=on ....... 4532 |======================== retbleed=ibpb spectre_v2=on nosmt . 4543 |======================== GNU Octave Benchmark 6.4.0 Seconds < Lower Is Better Default ........................... 6.970 |============================ mitigations=off ................... 6.730 |=========================== retbleed=ibpb ..................... 8.992 |==================================== retbleed=ibpb spectre_v2=on ....... 9.044 |==================================== retbleed=ibpb spectre_v2=on nosmt . 8.962 |==================================== DaCapo Benchmark 9.12-MR1 Java Test: Tradebeans msec < Lower Is Better Default ........................... 4387 |=============================== mitigations=off ................... 4037 |============================ retbleed=ibpb ..................... 5261 |===================================== retbleed=ibpb spectre_v2=on ....... 5320 |===================================== retbleed=ibpb spectre_v2=on nosmt . 2859 |==================== Selenium Benchmark: WASM collisionDetection - Browser: Google Chrome ms < Lower Is Better Default ........................... 273.73 |================================== mitigations=off ................... 275.62 |================================== retbleed=ibpb ..................... 274.16 |================================== retbleed=ibpb spectre_v2=on ....... 269.21 |================================= retbleed=ibpb spectre_v2=on nosmt . 285.07 |=================================== Primesieve 8.0 Length: 1e12 Seconds < Lower Is Better Default ........................... 10.73 |================================== mitigations=off ................... 10.72 |================================== retbleed=ibpb ..................... 10.74 |================================== retbleed=ibpb spectre_v2=on ....... 10.82 |================================== retbleed=ibpb spectre_v2=on nosmt . 11.35 |==================================== libavif avifenc 0.10 Encoder Speed: 6, Lossless Seconds < Lower Is Better Default ........................... 9.857 |============================= mitigations=off ................... 9.599 |============================ retbleed=ibpb ..................... 10.716 |=============================== retbleed=ibpb spectre_v2=on ....... 10.885 |================================ retbleed=ibpb spectre_v2=on nosmt . 12.031 |=================================== libavif avifenc 0.10 Encoder Speed: 10, Lossless Seconds < Lower Is Better Default ........................... 5.716 |============================== mitigations=off ................... 5.528 |============================= retbleed=ibpb ..................... 6.577 |================================== retbleed=ibpb spectre_v2=on ....... 6.705 |=================================== retbleed=ibpb spectre_v2=on nosmt . 6.932 |==================================== ASTC Encoder 4.0 Preset: Medium MT/s > Higher Is Better Default ........................... 79.60 |==================================== mitigations=off ................... 79.80 |==================================== retbleed=ibpb ..................... 79.69 |==================================== retbleed=ibpb spectre_v2=on ....... 79.47 |==================================== retbleed=ibpb spectre_v2=on nosmt . 69.23 |=============================== SVT-AV1 1.2 Encoder Mode: Preset 10 - Input: Bosphorus 4K Frames Per Second > Higher Is Better Default ........................... 78.58 |=================================== mitigations=off ................... 80.48 |==================================== retbleed=ibpb ..................... 76.92 |================================== retbleed=ibpb spectre_v2=on ....... 77.23 |=================================== retbleed=ibpb spectre_v2=on nosmt . 76.18 |================================== libavif avifenc 0.10 Encoder Speed: 6 Seconds < Lower Is Better Default ........................... 6.658 |============================= mitigations=off ................... 6.399 |============================ retbleed=ibpb ..................... 7.132 |=============================== retbleed=ibpb spectre_v2=on ....... 7.294 |================================ retbleed=ibpb spectre_v2=on nosmt . 8.158 |==================================== SVT-AV1 1.2 Encoder Mode: Preset 12 - Input: Bosphorus 4K Frames Per Second > Higher Is Better Default ........................... 106.99 |=================================== mitigations=off ................... 108.33 |=================================== retbleed=ibpb ..................... 103.60 |================================= retbleed=ibpb spectre_v2=on ....... 102.22 |================================= retbleed=ibpb spectre_v2=on nosmt . 101.99 |================================= Selenium Benchmark: WASM imageConvolute - Browser: Google Chrome ms < Lower Is Better Default ........................... 25.31 |=================================== mitigations=off ................... 24.84 |================================== retbleed=ibpb ..................... 25.75 |=================================== retbleed=ibpb spectre_v2=on ....... 25.54 |=================================== retbleed=ibpb spectre_v2=on nosmt . 26.31 |==================================== SVT-AV1 1.2 Encoder Mode: Preset 12 - Input: Bosphorus 1080p Frames Per Second > Higher Is Better Default ........................... 335.17 |=============================== mitigations=off ................... 343.98 |=============================== retbleed=ibpb ..................... 311.78 |============================ retbleed=ibpb spectre_v2=on ....... 317.13 |============================= retbleed=ibpb spectre_v2=on nosmt . 384.32 |=================================== Darktable 3.8.1 Test: Masskrug - Acceleration: CPU-only Seconds < Lower Is Better Default ........................... 3.693 |================================= mitigations=off ................... 3.612 |================================ retbleed=ibpb ..................... 3.966 |=================================== retbleed=ibpb spectre_v2=on ....... 3.987 |=================================== retbleed=ibpb spectre_v2=on nosmt . 4.061 |==================================== Darktable 3.8.1 Test: Server Room - Acceleration: CPU-only Seconds < Lower Is Better Default ........................... 3.334 |=================================== mitigations=off ................... 3.300 |================================== retbleed=ibpb ..................... 3.422 |==================================== retbleed=ibpb spectre_v2=on ....... 3.448 |==================================== retbleed=ibpb spectre_v2=on nosmt . 3.207 |================================= Darktable 3.8.1 Test: Boat - Acceleration: CPU-only Seconds < Lower Is Better Default ........................... 3.142 |=================================== mitigations=off ................... 3.087 |================================== retbleed=ibpb ..................... 3.260 |==================================== retbleed=ibpb spectre_v2=on ....... 3.270 |==================================== retbleed=ibpb spectre_v2=on nosmt . 3.119 |================================== ctx_clock Context Switch Time Clocks < Lower Is Better Default ........................... 245 |====== mitigations=off ................... 175 |==== retbleed=ibpb ..................... 1435 |================================== retbleed=ibpb spectre_v2=on ....... 1458 |================================== retbleed=ibpb spectre_v2=on nosmt . 1575 |===================================== SVT-AV1 1.2 Encoder Mode: Preset 10 - Input: Bosphorus 1080p Frames Per Second > Higher Is Better Default ........................... 251.82 |================================== mitigations=off ................... 260.32 |=================================== retbleed=ibpb ..................... 238.88 |================================ retbleed=ibpb spectre_v2=on ....... 240.80 |================================ retbleed=ibpb spectre_v2=on nosmt . 247.72 |================================= Darktable 3.8.1 Test: Server Rack - Acceleration: CPU-only Seconds < Lower Is Better Default ........................... 0.225 |================================== mitigations=off ................... 0.223 |================================= retbleed=ibpb ..................... 0.229 |================================== retbleed=ibpb spectre_v2=on ....... 0.230 |================================== retbleed=ibpb spectre_v2=on nosmt . 0.241 |==================================== Compile Bench 0.6 Test: Read Compiled Tree MB/s > Higher Is Better Default ........................... 3463.27 |=============================== mitigations=off ................... 3796.97 |================================== retbleed=ibpb ..................... 1284.64 |============ retbleed=ibpb spectre_v2=on ....... 1300.95 |============ retbleed=ibpb spectre_v2=on nosmt . 1250.47 |===========