Ctx_clock is a simple test program to measure the context switch time in clock cycles.
To run this test with the Phoronix Test Suite, the basic command is: phoronix-test-suite benchmark ctx-clock.
OpenBenchmarking.org metrics for this test profile configuration based on 4,156 public results since 18 February 2019 with the latest data as of 18 April 2024.
Below is an overview of the generalized performance for components where there is sufficient statistically significant data based upon user-uploaded results. It is important to keep in mind particularly in the Linux/open-source space there can be vastly different OS configurations, with this overview intended to offer just general guidance as to the performance expectations.
Based on OpenBenchmarking.org data, the selected test / test configuration (ctx_clock - Context Switch Time) has an average run-time of 2 minutes. By default this test profile is set to run at least 3 times but may increase if the standard deviation exceeds pre-defined defaults or other calculations deem additional runs necessary for greater statistical accuracy of the result.
Based on public OpenBenchmarking.org results, the selected test / test configuration has an average standard deviation of 0.2%.
No, based on the automated analysis of the collected public benchmark data, this test / test settings does not generally scale well with increasing CPU core counts. Data based on publicly available results for this test / test settings, separated by vendor, result divided by the reference CPU clock speed, grouped by matching physical CPU core count, and normalized against the smallest core count tested from each vendor for each CPU having a sufficient number of test samples and statistically significant data.
Notable instruction set extensions supported by this test, based on an automatic analysis by the Phoronix Test Suite / OpenBenchmarking.org analytics engine.
This test profile binary relies on the shared libraries libc.so.6.
This benchmark has been successfully tested on the below mentioned architectures. The CPU architectures listed is where successful OpenBenchmarking.org result uploads occurred, namely for helping to determine if a given test is compatible with various alternative CPU architectures.
1 System - 27 Benchmark Results |
Intel Core i9-13900K - ASUS ProArt Z790-CREATOR WIFI - Intel Device 7a27 Clear Linux OS 38020 - 5.15.86-30.lts2021 - GCC 12.2.1 20230105 releases |
1 System - 33 Benchmark Results |
2 x AMD EPYC 9684X 96-Core - Dell PowerEdge R7625 [06444F] - AMD Device 14a4 Ubuntu 22.04 - 5.15.0-102-generic - 1.3.255 |
1 System - 33 Benchmark Results |
2 x AMD EPYC 9754 128-Core - Dell PowerEdge R7625 [06444F] - AMD Device 14a4 Ubuntu 22.04 - 5.15.0-102-generic - 1.3.255 |
1 System - 37 Benchmark Results |
AMD Ryzen 7 5825U - Dinson DS2202 - AMD Renoir Linuxmint 21.2 - 5.15.0-76-generic - X Server 1.21.1.4 |
1 System - 15 Benchmark Results |
AMD Ryzen 9 7950X 16-Core - 16GB - 0GB Virtual Disk + 4GB Virtual Disk + 1100GB Virtual Disk Ubuntu 22.04 - 5.15.146.1-microsoft-standard-WSL2 - Wayland |
1 System - 145 Benchmark Results |
2 x Intel Xeon Silver 4310 - Inspur NF5280M6 - Intel Device 0998 JHLT 3.1 - 3.10.0-1062.lt3.x86_64 - GCC 4.8.5 20150623 |
1 System - 43 Benchmark Results |
AMD Eng Sample 100-000000897-03 - Supermicro H13SSL-N v1.01 - AMD Device 14a4 Pop 22.04 - 6.8.0-76060800daily20240311-generic - GNOME Shell 42.5 |
1 System - 37 Benchmark Results |
AMD Ryzen 9 7950X 16-Core - Supermicro H13SAE-MF v1.00 - AMD Device 14d8 Debian 12 - 6.1.0-18-amd64 - GCC 12.2.0 |
1 System - 37 Benchmark Results |
Intel Xeon Gold 5416S - Supermicro X13SEW-TF v1.02 - Intel Device 1bce Debian 12 - 6.1.0-18-amd64 - GCC 12.2.0 |
1 System - 37 Benchmark Results |
AMD Ryzen 9 7950X 16-Core - Supermicro H13SAE-MF v1.00 - AMD Device 14d8 Debian 12 - 6.1.0-18-amd64 - GCC 12.2.0 |
1 System - 37 Benchmark Results |
Intel Xeon Gold 5416S - Supermicro X13SEW-TF v1.02 - Intel Device 1bce Debian 12 - 6.1.0-18-amd64 - GCC 12.2.0 |
1 System - 37 Benchmark Results |
AMD Ryzen Threadripper 7960X 24-Cores - ASRock TRX50 WS - AMD Device 14a4 Ubuntu 22.04 - 6.5.0-25-generic - GNOME Shell 42.9 |
1 System - 37 Benchmark Results |
Intel Atom x6425E - v1.1 - Intel Device 4b7f Ubuntu 20.04 - 5.15.0-91-generic - LXQt 0.14.1 |
1 System - 25 Benchmark Results |
Intel Core i9-10900X - ASUS ROG STRIX X299-E GAMING II - Intel Sky Lake-E DMI3 Registers Ubuntu 22.04 - 6.5.0-21-generic - GNOME Shell 42.9 |
1 System - 37 Benchmark Results |
AMD Ryzen 5 3600 6-Core - ASRock B550M-ITX/ac - AMD Starship Ubuntu 22.04 - 6.5.0-1014-oem - OpenCL 3.0 + OpenCL 2.0 pocl 1.8 Linux +Asserts RELOC LLVM 11.1.0 SLEEF DISTRO POCL_DEBUG |
2 Systems - 535 Benchmark Results |
AMD Ryzen 5 4500U - LENOVO LNVNB161216 - AMD Renoir Root Complex Ubuntu 20.04 - 5.9.0-050900rc7daily20201002-generic - GNOME Shell 3.36.4 |
9 Systems - 7 Benchmark Results |
Intel Core i3-3110M - LENOVO - Intel 3rd Gen Core DRAM VoidLinux rolling - 5.11.21_1 - X Server 1.20.11 |
11 Systems - 217 Benchmark Results |
AMD Ryzen 9 5950X 16-Core - ASUS ROG CROSSHAIR VIII HERO - AMD Starship Ubuntu 20.04 - 5.9.0-050900-generic - GNOME Shell 3.36.4 |
12 Systems - 593 Benchmark Results |
AMD Ryzen 9 5900X 12-Core - ASRock X570 Taichi - AMD Starship Fedora 33 - 5.8.16-300.fc33.x86_64 - GNOME Shell 3.38.1 |
Featured Processor Comparison |
AMD Ryzen 9 3950X 16-Core - ASUS ROG CROSSHAIR VIII HERO - AMD Starship Ubuntu 20.04 - 5.7.0-999-generic - GNOME Shell 3.36.1 |
22 Systems - 46 Benchmark Results |
Intel Core i9-9900K - ASRock Z390M Pro4 - Intel Cannon Lake PCH Ubuntu 20.10 - 5.10.4-051004-generic - GNOME Shell 3.38.1 |
Featured Motherboard Comparison |
AMD Ryzen 9 3900X 12-Core - ASUS ROG CROSSHAIR VIII HERO - AMD Device 1480 Ubuntu 18.04 - 4.18.0-25-generic - GNOME Shell 3.28.4 |
Featured Processor Comparison |
Intel Core i9-10980XE - Gigabyte X299X DESIGNARE 10G - Intel Sky Lake-E DMI3 Registers Ubuntu 19.10 - 5.3.0-23-generic - GNOME Shell 3.34.1 |
12 Systems - 209 Benchmark Results |
POWER9 - PowerNV C1P9S01 REV 1.01 - 131072MB Ubuntu 19.04 - 5.0.0-17-generic - GCC 9.1.0 |
4 Systems - 67 Benchmark Results |
Intel Core i7-3960X - Intel DX79SI - Intel Xeon E5 Ubuntu 18.04 - 5.0.0-27-generic - GNOME Shell 3.28.4 |
2 Systems - 123 Benchmark Results |
Intel Core i7-8700K - ASUS TUF Z370-PLUS GAMING - Intel 8th Gen Core ManjaroLinux 18.0.4 - 4.19.49-1-MANJARO - Xfce 4.13 |
6 Systems - 143 Benchmark Results |
Intel Core i7-9750H - Dell 0VYV0G - Intel Cannon Lake PCH Ubuntu 20.10 - 5.10.13-xanmod1 - KDE Plasma 5.19.5 |
8 Systems - 439 Benchmark Results |
AMD Ryzen 7 5800X 8-Core - ASUS ROG CROSSHAIR VIII HERO - AMD Starship Ubuntu 21.04 - 5.12.0-051200rc3daily20210315-generic - GNOME Shell 3.38.3 |
3 Systems - 173 Benchmark Results |
AMD Ryzen Threadripper 3970X 32-Core - 52GB - 2 x 275GB Virtual Disk Ubuntu 20.04 - 4.19.104-microsoft-standard - X Server |
6 Systems - 57 Benchmark Results |
AMD Ryzen 7 2700X Eight-Core - ASUS ROG CROSSHAIR VII HERO - AMD Family 17h Ubuntu 18.10 - 5.0.0-999-generic - GNOME Shell 3.30.1 |