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 3,796 public results since 18 February 2019 with the latest data as of 29 June 2022.
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 - 49 Benchmark Results |
Intel Xeon E5-2630 v4 - QEMU Standard PC - Intel 440FX 82441FX PMC Ubuntu 22.04 - 5.15.0-25-generic - 1.2.204 |
7 Systems - 25 Benchmark Results |
Intel Core i7-10810U - Dell 0F3R8H - Intel Device 02ef Ubuntu 20.04 - 5.8.0-48-generic - GNOME Shell 3.36.7 |
Featured Kernel Comparison |
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1 System - 269 Benchmark Results |
Intel Core i5-1135G7 - LENOVO LNVNB161216 - Intel Tiger Lake-LP Debian 11 - 5.10.0-10-amd64 - KDE Plasma 5.20.5 |
1 System - 6 Benchmark Results |
Intel Core i5-8500T - LENOVO 3135 - 16384MB Ubuntu 14.04 - 5.17.7-300.fc36.x86_64 - GCC 4.8.4 |
1 System - 6 Benchmark Results |
AMD Ryzen 7 5700U with Radeon - System76 Pangolin - 15360MB Ubuntu 14.04 - 5.18.5-200.fc36.x86_64 - GCC 4.8.4 |
4 Systems - 32 Benchmark Results |
AMD Ryzen 7 PRO 5850U - HP 8A78 - AMD Renoir Pop 22.04 - 5.17.5-76051705-generic - GNOME Shell 42.1 |
1 System - 1 Benchmark Result |
AMD Ryzen 5 2600 Six-Core - ASUS TUF B450M-PLUS GAMING - AMD 17h Ubuntu 22.04 - 5.15.0-25-generic - GNOME Shell 42.0 |
1 System - 1 Benchmark Result |
AMD Ryzen 5 2600 Six-Core - ASUS TUF B450M-PLUS GAMING - AMD 17h Ubuntu 22.04 - 5.15.0-25-generic - GNOME Shell 42.0 |
1 System - 2 Benchmark Results |
AMD Ryzen 5 2600 Six-Core - ASUS TUF B450M-PLUS GAMING - AMD 17h Ubuntu 22.04 - 5.15.0-25-generic - GNOME Shell 42.0 |
1 System - 2 Benchmark Results |
AMD Ryzen 5 2600 Six-Core - ASUS TUF B450M-PLUS GAMING - AMD 17h Ubuntu 22.04 - 5.15.0-25-generic - GNOME Shell 42.0 |
1 System - 1 Benchmark Result |
AMD Ryzen 5 2600 Six-Core - ASUS TUF B450M-PLUS GAMING - AMD 17h Ubuntu 22.04 - 5.15.0-25-generic - GNOME Shell 42.0 |
Featured Kernel Comparison |
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5 Systems - 54 Benchmark Results |
AMD Ryzen 9 3950X 16-Core - Gigabyte B550 AORUS ELITE AX V2 - AMD Starship Ubuntu 20.04 - 5.17.0-3.2-liquorix-amd64 - GNOME Shell 3.36.9 |
5 Systems - 39 Benchmark Results |
AMD Ryzen 9 3950X 16-Core - Gigabyte B550 AORUS ELITE AX V2 - AMD Starship Ubuntu 20.04 - 5.17.0-3.2-liquorix-amd64 - GNOME Shell 3.36.9 |
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 |
11 Systems - 217 Benchmark Results |
Intel Core i9-10900K - Gigabyte Z490 AORUS MASTER - Intel Comet Lake PCH Ubuntu 20.04 - 5.9.0-050900-generic - GNOME Shell 3.36.4 |
12 Systems - 593 Benchmark Results |
AMD Ryzen 7 5800X 8-Core - Gigabyte X570 AORUS MASTER - 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 |
12 Systems - 209 Benchmark Results |
AMD Ryzen 7 2700 Eight-Core - Gigabyte AB350N-Gaming WIFI-CF - AMD 17h Ubuntu 19.04 - 5.2.0-999-generic - GNOME Shell 3.32.1 |
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 |
4 Systems - 67 Benchmark Results |
AMD Ryzen 5 3600X 6-Core - MSI X470 GAMING M7 AC - AMD Device 1480 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 |
AMD Ryzen 9 5900X 12-Core - ASUS ROG CROSSHAIR VIII HERO - AMD Starship Ubuntu 20.10 - 5.10.7-xanmod1 - GNOME Shell 3.38.1 |
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 |
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 |
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 |
22 Systems - 46 Benchmark Results |
AMD Ryzen 9 5950X 16-Core - ASUS ROG CROSSHAIR VIII HERO - AMD Starship Ubuntu 20.10 - 5.10.4-051004-generic - GNOME Shell 3.38.1 |
12 Systems - 229 Benchmark Results |
Intel Core i5-10600K - Gigabyte Z490 AORUS MASTER - Intel Comet Lake PCH Ubuntu 20.04 - 5.9.0-050900-generic - GNOME Shell 3.36.4 |
8 Systems - 360 Benchmark Results |
AMD Ryzen Threadripper 3970X 32-Core - ASUS ROG ZENITH II EXTREME - AMD Starship Ubuntu 19.10 - 5.4.0-999-generic - GNOME Shell 3.34.1 |