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 4,236 public results since 18 February 2019 with the latest data as of 25 July 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.
2 Systems - 95 Benchmark Results |
16 x AMD Ryzen 7 5700G - Intel 440BX - Intel 440BX Ubuntu 22.04 - 6.5.0-41-generic - GNOME Shell 42.9 |
2 Systems - 37 Benchmark Results |
AMD Ryzen 9 5950X 16-Core - ASRock X570 Steel Legend - AMD Starship EndeavourOS rolling - 6.9.9-arch1-1 - KDE Plasma 6.1.2 |
1 System - 354 Benchmark Results |
8 x Intel Xeon Gold 6240 - Intel 440BX - Intel 440BX CentOS 7.9.2009 - 3.10.0-1160.119.1.el7.x86_64 - X Server |
1 System - 383 Benchmark Results |
8 x Intel Xeon Gold 5118 - Intel 440BX - Intel 440BX Oracle Linux Server 9.4 - 5.14.0-427.22.1.el9_4.x86_64 - GCC 11.4.1 20231218 |
1 System - 367 Benchmark Results |
8 x Intel Xeon Gold 5118 - Intel 440BX - Intel 440BX Oracle Linux Server 9.4 - 5.14.0-427.20.1.el9_4.x86_64 - GCC 11.4.1 20231218 |
11 Systems - 35 Benchmark Results |
AMD EPYC 7282 16-Core - Intel 440BX - 32GB Ubuntu 20.04.4 LTS - 6.1.94-1.ph5-esx - GCC 9.4.0 |
12 Systems - 35 Benchmark Results |
4 x AMD EPYC 9354 32-Core - Intel 440BX - 32GB Ubuntu 20.04.4 LTS - 5.10.142-1.ph4-esx - GCC 9.4.0 |
14 Systems - 35 Benchmark Results |
AMD EPYC 7543P 32-Core - Intel 440BX - 32GB Ubuntu 20.04.4 LTS - 5.10.142-1.ph4-esx - GCC 9.4.0 |
13 Systems - 35 Benchmark Results |
AMD EPYC 7282 16-Core - Intel 440BX - 32GB Ubuntu 20.04.4 LTS - 6.1.94-1.ph5-esx - GCC 9.4.0 |
1 System - 34 Benchmark Results |
2 x INTEL XEON GOLD 6548Y+ - Dell PowerEdge R660 0NN3RP - Intel Device 1bce RedHatEnterprise 8.8 - 4.18.0-477.15.1.el8_8.x86_64 - GCC 8.5.0 20210514 |
1 System - 31 Benchmark Results |
AMD EPYC 9684X 96-Core - Dell PowerEdge R7615 0DCCMY - AMD Device 14a4 RedHatEnterprise 8.8 - 4.18.0-477.15.1.el8_8.x86_64 - GCC 8.5.0 20210514 |
1 System - 34 Benchmark Results |
2 x INTEL XEON GOLD 6548Y+ - Dell PowerEdge R660 0NN3RP - Intel Device 1bce RedHatEnterprise 8.8 - 4.18.0-477.15.1.el8_8.x86_64 - GCC 8.5.0 20210514 |
1 System - 32 Benchmark Results |
2 x INTEL XEON GOLD 6548Y+ - Dell PowerEdge R660 0NN3RP - Intel Device 1bce RedHatEnterprise 8.8 - 4.18.0-477.15.1.el8_8.x86_64 - GCC 8.5.0 20210514 |
1 System - 379 Benchmark Results |
4 x Intel Xeon Gold 5118 - Intel 440BX - Intel 440BX OracleServer 8.10 - 4.18.0-553.el8_10.x86_64 - GCC 10.3.1 20210422 |
3 Systems - 141 Benchmark Results |
Intel Xeon Gold 6148 - Supermicro X11SPW-TF v1.03 - Intel Sky Lake-E DMI3 Registers Ubuntu 22.04 - 5.15.0-112-generic - X Server |
2 Systems - 535 Benchmark Results |
Intel Core i7-1065G7 - Dell 06CDVY - Intel Device 34ef Ubuntu 20.04 - 5.9.0-050900rc7daily20201003-generic - GNOME Shell 3.36.4 |
9 Systems - 7 Benchmark Results |
Intel Core i3-3110M - LENOVO - Intel 3rd Gen Core DRAM Clear Linux OS 34600 - 5.12.2-1038.native - GNOME Shell 40.0 |
11 Systems - 217 Benchmark Results |
AMD Ryzen 9 3950X 16-Core - ASUS ROG CROSSHAIR VIII HERO - AMD Starship Ubuntu 20.04 - 5.9.0-050900-generic - GNOME Shell 3.36.4 |
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 |
12 Systems - 593 Benchmark Results |
AMD Ryzen 9 3950X 16-Core - ASUS ROG CROSSHAIR VIII HERO - AMD Starship Ubuntu 20.04 - 5.8.0-050800daily20200622-generic - GNOME Shell 3.36.2 |
22 Systems - 46 Benchmark Results |
Intel Core i7-4770K - Gigabyte Z97-HD3 - Intel 4th Gen Core DRAM 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 |
AMD Ryzen Threadripper 3960X 24-Core - MSI Creator TRX40 - AMD Starship Ubuntu 19.10 - 5.3.0-23-generic - GNOME Shell 3.34.1 |
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 |
12 Systems - 209 Benchmark Results |
Intel Core i3-8100 - ASRock Z370M-ITX/ac - Intel 8th Gen Core Ubuntu 19.04 - 5.2.0-999-generic - GNOME Shell 3.32.1 |
4 Systems - 67 Benchmark Results |
AMD Ryzen 5 2600X Six-Core - MSI X470 GAMING M7 AC - AMD 17h Ubuntu 18.04 - 5.0.0-27-generic - GNOME Shell 3.28.4 |
8 Systems - 439 Benchmark Results |
AMD Ryzen 9 5950X 16-Core - ASUS ROG CROSSHAIR VIII HERO - AMD Starship Ubuntu 21.04 - 5.12.0-051200rc3daily20210315-generic - GNOME Shell 3.38.3 |
6 Systems - 143 Benchmark Results |
AMD Ryzen 9 5900X 12-Core - ASUS ROG CROSSHAIR VIII HERO - AMD Starship Ubuntu 20.10 - 5.10.7-051007-generic - GNOME Shell 3.38.1 |
3 Systems - 173 Benchmark Results |
AMD Ryzen Threadripper 3970X 32-Core - ASUS ROG ZENITH II EXTREME - AMD Starship Ubuntu 20.04 - 5.4.0-37-generic - GNOME Shell 3.36.2 |
6 Systems - 57 Benchmark Results |
Intel Core i7-8086K - ASUS PRIME Z370-A - Intel 8th Gen Core Ubuntu 18.10 - 5.0.0-999-generic - GNOME Shell 3.30.1 |