ctx_clock

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.

Project Site

gist.github.com

Test Created

18 February 2019

Test Maintainer

Michael Larabel

Test Type

System

Average Install Time

2 Seconds

Average Run Time

29 Seconds

Test Dependencies

C/C++ Compiler Toolchain

Accolades

20k+ Downloads

Supported Platforms

* Uploading of benchmark result data to OpenBenchmarking.org is always optional (opt-in) via the Phoronix Test Suite for users wishing to share their results publicly.
** Data based on those opting to upload their test results to OpenBenchmarking.org and users enabling the opt-in anonymous statistics reporting while running benchmarks from an Internet-connected platform.
*** Test profile page view reporting began March 2021.
Data current as of 26 June 2022.

Revision History

pts/ctx-clock-1.0.0 [View Source] Mon, 18 Feb 2019 12:05:15 GMT
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 3,796 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.

Component

Percentile Rank

# Compatible Public Results

Clocks (Average)

Intel Core i5-1035G1

100th

68 ^{+/- 2}

Intel Core i7-1065G7

100th

81 ^{+/- 2}

Intel Core i7-10710U

99th

88 ^{+/- 12}

AMD Ryzen 7 PRO 4750U

99th

89 ^{+/- 9}

AMD Ryzen 7 PRO 5850U

99th

91 ^{+/- 9}

AMD Ryzen 7 4700U

98th

100

2 x AMD EPYC 7713 64-Core

98th

101 ^{+/- 1}

AMD EPYC 7713 64-Core

98th

101 ^{+/- 1}

Intel Core i9-10885H

98th

104 ^{+/- 15}

Intel Core i7-10510U

97th

105 ^{+/- 13}

Intel Xeon Gold 5220R

96th

117 ^{+/- 6}

AMD Ryzen 5 4500U

96th

118

AMD Ryzen 5 5500U

95th

119 ^{+/- 11}

AMD EPYC 7662 64-Core

95th

120

AMD EPYC 7702 64-Core

95th

120

Intel Xeon Gold 5218

94th

122 ^{+/- 4}

2 x Intel Xeon Gold 5220R

93rd

124 ^{+/- 18}

AMD Ryzen 5 3550H

93rd

126

Intel Core i9-10980XE

92nd

128 ^{+/- 17}

Intel Xeon Silver 4216

91st

132 ^{+/- 4}

2 x AMD EPYC 7773X 64-Core

90th

133 ^{+/- 1}

Intel Core i7-10850H

90th

134 ^{+/- 1}

AMD EPYC 7552 48-Core

89th

135 ^{+/- 3}

2 x Intel Xeon Platinum 8280

86th

137 ^{+/- 11}

2 x AMD EPYC 7742 64-Core

86th

137 ^{+/- 11}

Intel Core i5-12400

86th

137 ^{+/- 4}

2 x AMD EPYC 7642 48-Core

86th

138

2 x AMD EPYC 7601 32-Core

86th

138 ^{+/- 12}

Intel Xeon Platinum 8280

86th

138 ^{+/- 7}

2 x AMD EPYC 7352 24-Core

86th

138

AMD EPYC 7642 48-Core

85th

139 ^{+/- 1}

AMD EPYC 7401P 24-Core

85th

140

Intel Xeon Gold 6258R

85th

140 ^{+/- 6}

AMD EPYC 7551 32-Core

85th

140

Intel Xeon Silver 4214R

85th

140 ^{+/- 4}

2 x AMD EPYC 7452 32-Core

84th

141

AMD Ryzen Threadripper 3990X 64-Core

83rd

143 ^{+/- 8}

AMD EPYC 7452 32-Core

83rd

143 ^{+/- 1}

AMD Ryzen 9 5950X 16-Core

83rd

144 ^{+/- 20}

AMD EPYC 7601 32-Core

83rd

144 ^{+/- 12}

AMD EPYC 7532 32-Core

83rd

144

2 x AMD EPYC 7763 64-Core

83rd

144 ^{+/- 8}

AMD EPYC 7763 64-Core

80th

146 ^{+/- 6}

2 x AMD EPYC 75F3 32-Core

79th

148 ^{+/- 1}

AMD Ryzen 5 5600X 6-Core

79th

148

AMD EPYC 75F3 32-Core

79th

148 ^{+/- 1}

Intel Core i9-10900K

77th

149 ^{+/- 4}

AMD EPYC 7502P 32-Core

77th

150

AMD EPYC 7502 32-Core

77th

150

Intel Xeon E-2288G

77th

150 ^{+/- 4}

AMD Ryzen Threadripper 2990WX 32-Core

77th

150

AMD Ryzen 9 5900X 12-Core

77th

150 ^{+/- 9}

Mid-Tier

75th

> 150

2 x Intel Xeon Gold 6254

72nd

153 ^{+/- 3}

Intel Xeon Gold 6226R

72nd

153 ^{+/- 4}

2 x AMD EPYC 7371 16-Core

71st

155

Intel Core i7-1185G7

71st

155 ^{+/- 2}

Intel Core i9-11900K

70th

156 ^{+/- 9}

AMD Ryzen 7 3800XT 8-Core

70th

156

AMD EPYC 7352 24-Core

70th

157 ^{+/- 9}

Intel Core i7-11700K

69th

158 ^{+/- 2}

Intel Core i9-9900KS

69th

160 ^{+/- 3}

2 x Intel Xeon Silver 4215R

69th

160 ^{+/- 2}

AMD Ryzen 7 5800X 8-Core

68th

162 ^{+/- 18}

AMD Ryzen 7 5700G

68th

162 ^{+/- 23}

Intel Xeon Silver 4215R

67th

164 ^{+/- 4}

Intel Xeon Gold 5217

66th

167 ^{+/- 4}

AMD EPYC 7402P 24-Core

66th

168

Intel Core i5-3380M

66th

168

AMD Ryzen 7 2700 Eight-Core

63rd

172 ^{+/- 17}

Intel Core i5-10600K

63rd

174 ^{+/- 5}

AMD EPYC 7542 32-Core

63rd

174

Intel Xeon Gold 6210U

63rd

174 ^{+/- 1}

AMD EPYC 7F52 16-Core

63rd

175

AMD EPYC 7351P 16-Core

63rd

175 ^{+/- 18}

AMD EPYC 3255 8-Core Temp

61st

176 ^{+/- 3}

AMD Ryzen 5 1600 Six-Core

61st

176 ^{+/- 24}

Intel Core i3-10100

61st

176 ^{+/- 3}

Intel Core i5-11600K

61st

178 ^{+/- 4}

AMD Ryzen Threadripper 2950X 16-Core

61st

178 ^{+/- 7}

AMD Ryzen 5 3600XT 6-Core

61st

178 ^{+/- 15}

AMD Ryzen 7 1700X Eight-Core

61st

179 ^{+/- 17}

Intel Core i5-12600K

61st

180 ^{+/- 12}

AMD Ryzen 5 1600X Six-Core

61st

180

AMD Ryzen 5 5600G

58th

183 ^{+/- 18}

AMD EPYC 7F72 24-Core

58th

184 ^{+/- 15}

AMD Ryzen Threadripper PRO 3955WX 16-Cores

58th

184 ^{+/- 17}

AMD EPYC 7F32 8-Core

58th

185

AMD Ryzen 7 2700X Eight-Core

58th

185 ^{+/- 4}

2 x AMD EPYC 7F72 24-Core

56th

186 ^{+/- 15}

2 x AMD EPYC 7252 8-Core

56th

189 ^{+/- 6}

AMD Ryzen 3 1200

56th

189 ^{+/- 6}

AMD Ryzen 3 3300X 4-Core

56th

190

AMD EPYC 7302P 16-Core

54th

191 ^{+/- 28}

2 x AMD EPYC 7262 8-Core

54th

192

AMD EPYC 7262 8-Core

54th

192

AMD Ryzen 3 3200G

54th

194 ^{+/- 19}

AMD Ryzen 5 3600 6-Core

54th

194 ^{+/- 25}

AMD EPYC 7282 16-Core

53rd

196 ^{+/- 1}

AMD Ryzen 3 2200G

52nd

198 ^{+/- 15}

Intel Xeon W-2295

52nd

201 ^{+/- 1}

AMD EPYC 7272 12-Core

51st

203 ^{+/- 1}

AMD EPYC 7543 32-Core

51st

205 ^{+/- 16}

Intel Celeron G5900

51st

206 ^{+/- 5}

Median

50th

207

Intel Pentium Gold G6400

50th

208 ^{+/- 1}

AMD EPYC 7232P 8-Core

50th

208 ^{+/- 15}

2 x Intel $0000%

49th

216 ^{+/- 8}

Intel Celeron G6900

47th

251

AMD A10-7870K Radeon R7 12 Compute Cores 4C

37th

436 ^{+/- 21}

2 x Intel Xeon E5-2620 v4

36th

476

Intel Xeon Gold 6212U

36th

482 ^{+/- 1}

AMD FX-8370E Eight-Core

33rd

533 ^{+/- 2}

2 x Intel Xeon E5-2450L 0

30th

584 ^{+/- 7}

2 x Intel Xeon E5-2670 0

26th

633 ^{+/- 6}

2 x Intel Xeon X5670

26th

645 ^{+/- 58}

Low-Tier

25th

> 645

4 x Intel Xeon Gold 6254

25th

650 ^{+/- 3}

Intel Xeon X3470

25th

658 ^{+/- 65}

AMD FX-8350 Eight-Core

22nd

734 ^{+/- 60}

Intel Core i7-8750H

22nd

738 ^{+/- 30}

Intel Xeon X5550

21st

770 ^{+/- 10}

Intel Xeon D-2183IT

18th

864 ^{+/- 83}

Intel Core i7-7800X

18th

917 ^{+/- 8}

Intel Core i5-7440HQ

16th

968 ^{+/- 4}

2 x Intel Xeon E5-2697 v3

15th

975 ^{+/- 32}

Intel Core i7-4600U

11th

1079 ^{+/- 32}

Intel Core i7-6820HQ

10th

1093 ^{+/- 30}

Intel Core i5-4690K

9th

1108 ^{+/- 60}

Intel Core i7-4930K

8th

1130 ^{+/- 135}

Intel Xeon W-2155

8th

1136 ^{+/- 38}

2 x Intel Xeon E5-2403 v2

7th

1164 ^{+/- 2}

Intel Xeon E5-2667 v4

7th

1167 ^{+/- 83}

Intel Core i7-4790K

7th

1168 ^{+/- 51}

Intel Core i3-7100U

6th

1223 ^{+/- 73}

Intel Core i3-7100

3rd

1372 ^{+/- 59}

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%.

Does It Scale Well With Increasing Cores?

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 Usage

Notable instruction set extensions supported by this test, based on an automatic analysis by the Phoronix Test Suite / OpenBenchmarking.org analytics engine.

Instruction Set

Support

Instructions Detected

Last automated analysis: 17 January 2022

This test profile binary relies on the shared libraries libc.so.6.

Tested CPU Architectures

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.

CPU Architecture

Kernel Identifier

Verified On

Intel / AMD x86 64-bit

x86_64

(Many Processors)

Intel / AMD x86 32-bit

i686

(Many Processors)

result-tests 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
cpuresult 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
Core i5 12600K Kernel Build Optimizations Featured Kernel Comparison	5.19.0-rc4-phx-two - 5.19.0-rc4-phx-three
kern.perf 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
WorkDesktop 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
Late 2021 Test 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
HP Dev One CPU Bench 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
Ubuntu 22.04 Benchmarks 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
AMD Ryzen 5 2600 Six-Core + Gigabyte NVIDIA GeForce GTX 650 Ti + ASUS TUF B450M-PLUS GAMING (2409 BIOS) 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
Ubuntu 22.04 Benchmarks 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
AMD Ryzen 5 2600 Six-Core Performance 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
5.15.0-25-generic + Ubuntu 22.04 Tests 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
EPYC Milan-X Linux 5.19 Benchmarks Featured Kernel Comparison	5.19.0-051900rc1daily20220607-generic - 5.19.0-rc2-amd-patch
whitedwarf3 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
whitedwarf3 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

Renoir vs. Icelake Benchmarks 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
Ryzen 9 5900X / Ryzen 9 5950X Linux Performance 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
AMD Ryzen vs. Intel Core Benchmarking On Ubuntu Linux 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
Core i9 10900K vs. Ryzen 9 3900X/3950X Linux Benchmarks 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
CPU Benchmarks - POWER9 Blackbird 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
AMD Threadripper 3960X vs. Intel Core i9 10980XE 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
Core i7 3960X vs. AMD Ryzen 5 3600X vs. Core i7 8700K 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
Clear Linux vs. Manjaro Linux Performance Benchmarks - Summer 2019 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
Ubuntu 20.10 Kernels AMD Zen 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-xanmod1 - GNOME Shell 3.38.1
Intel Core i5 11600K + Core i9 11900K Linux Performance 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
Threadripper 3970X Ubuntu 20.04 LTS vs. Windows WSL/WSL2 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
ASUS ROG CROSSHAIR VIII HERO Linux Benchmarks Ryzen 9 3900X 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
3 Years CPU Security Mitigations 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
Ryzen 5 5600X Linux Performance 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
Core i9-10980XE vs. Threadripper 3 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

ctx_clock

Project Site

Test Created

Test Maintainer

Test Type

Average Install Time

Average Run Time

Test Dependencies

Accolades

Supported Platforms

Revision History

Suites Using This Test

Performance Metrics

ctx_clock

Context Switch Time

Does It Scale Well With Increasing Cores?

Notable Instruction Set Usage

Tested CPU Architectures

Recent Test Results

Most Popular Test Results