ctx_clock

Ctx_clock is a simple test program to measure the context switch time in clock cycles.

Learn more about this test at the upstream project site: https://gist.github.com/teknoraver/ebee75c5bc4eb8533b8e761d0e57b7d9.

This utility test profile is maintained by Michael Larabel. This OpenBenchmarking.org test profile was created on 18 February 2019. To run this test with the Phoronix Test Suite, the basic command is: phoronix-test-suite benchmark ctx-clock.

This test has an average install time of 1 second and an average run-time of 34 seconds.

20k+ Downloads

Installation StatsTest Completion StatsOpenBenchmarking.orgEventsctx_clock Popularitypts/ctx-clock2019.022019.032019.042019.052019.062019.072019.082019.092019.102019.112019.122020.012020.022020.032020.042020.052020.062020.072020.082020.092004006008001000

* Data based on those opting to upload their test results to OpenBenchmarking.org and users enabling the opt-in anonymous statistics reporting.

Revision History

pts/ctx-clock-1.0.0   [View Source]   18 Feb 2019 12:05 EST
Initial commit of basic test that measures the context switch time.

Suites Using This Test

Common Kernel Benchmarks

CPU Massive

Server CPU Tests

Performance Metrics

Analyze Test Configuration:

ctx_clock

Context Switch Time

OpenBenchmarking.org metrics for this test profile configuration based on 3,201 public samples since 18 February 2019 with the latest data as of 31 October 2020.

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.

Component
Percentile Rank
Clocks (Average)
Mid-Tier
75th
> 152
57th
281
Median
50th
457
Low-Tier
25th
> 1024
OpenBenchmarking.orgDistribution Of Public Results - Context Switch Time3201 Results Range From 64 To 28197 Clocks646271190175323162879344240054568513156946257682073837946850990729635101981076111324118871245013013135761413914702152651582816391169541751718080186431920619769203322089521458220212258423147237102427324836253992596226525270882765128214400800120016002000

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.

OpenBenchmarking.orgMinutesTime Required To Complete BenchmarkContext Switch TimeRun-Time246810Min: 1 / Avg: 1.01 / Max: 3

Based on public OpenBenchmarking.org results, the selected test / test configuration has an average standard deviation of 0.2%.

OpenBenchmarking.orgPercent, Fewer Is BetterAverage Deviation Between RunsContext Switch TimeDeviation246810Min: 0 / Avg: 0.18 / Max: 4

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