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

28 Seconds

Test Dependencies

C/C++ Compiler Toolchain

Accolades

30k+ Downloads

Supported Platforms

Public Result Uploads *Reported Installs **Reported Test Completions **Test Profile Page Views ***OpenBenchmarking.orgEventsctx_clock Popularity Statisticspts/ctx-clock2019.022019.042019.062019.082019.102019.122020.022020.042020.062020.082020.102020.122021.022021.042021.062021.082021.102021.122022.022022.042022.062022.082022.102022.122023.022023.042023.062023.082023.102023.122024.022024.042024.062024.082024.105K10K15K20K25K
* 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 updated weekly as of 9 November 2024.

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 4,287 public results since 18 February 2019 with the latest data as of 7 November 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.

Component
Percentile Rank
# Compatible Public Results
Clocks (Average)
Intel Core i5-1035G1
100th
3
68 +/- 2
Intel Core i7-1065G7
100th
20
81 +/- 2
Intel Core i7-10710U
99th
4
88 +/- 12
AMD Ryzen 7 PRO 4750U
99th
4
89 +/- 9
AMD Ryzen 7 PRO 5850U
99th
38
92 +/- 9
AMD Ryzen 7 4700U
98th
3
100
Intel Core i9-10885H
98th
3
104 +/- 15
Intel Core i7-10510U
98th
5
105 +/- 13
AMD EPYC 7713 64-Core
97th
7
112 +/- 10
2 x AMD EPYC 7713 64-Core
97th
11
115 +/- 9
AMD Ryzen 5 4500U
97th
8
118
2 x AMD EPYC 7663 56-Core
96th
3
120
AMD EPYC 7662 64-Core
96th
10
120 +/- 1
AMD EPYC 7702 64-Core
96th
14
120
Intel Xeon Gold 5218
94th
6
123 +/- 2
Intel Core i5-14500
93rd
3
125
AMD Ryzen 5 3550H
93rd
3
126
Intel Xeon Platinum 8490H
92nd
3
128
Intel Core i9-10980XE
92nd
41
128 +/- 18
2 x Intel Xeon Platinum 8490H
92nd
4
129 +/- 1
2 x AMD EPYC 7773X 64-Core
92nd
18
130 +/- 7
2 x Intel Xeon Silver 4208
91st
43
131 +/- 1
Intel Core i9-13900K
90th
23
132 +/- 9
AMD EPYC 7773X 64-Core
90th
4
132
Intel Xeon Silver 4216
88th
5
134 +/- 4
Intel Core i7-10850H
88th
3
134 +/- 1
Intel Core i5-13400
88th
4
134 +/- 1
AMD EPYC 7552 48-Core
88th
10
135 +/- 3
Intel Core i9-14900K
86th
13
136 +/- 9
2 x AMD EPYC 7601 32-Core
85th
29
138 +/- 12
Intel Core i7-12700H
85th
3
138 +/- 11
Intel Core i5-12400
85th
4
138 +/- 4
AMD EPYC 7642 48-Core
84th
18
139 +/- 1
Intel Core i5-1135G7
84th
4
139 +/- 13
AMD EPYC 7401P 24-Core
84th
3
140
Intel Xeon Platinum 8280
84th
5
140 +/- 7
AMD EPYC 7551 32-Core
84th
3
140
2 x AMD EPYC 7742 64-Core
83rd
38
141 +/- 19
Intel Xeon Silver 4214R
82nd
3
142
AMD EPYC 7452 32-Core
82nd
5
143
AMD EPYC 7601 32-Core
82nd
9
144 +/- 12
AMD EPYC 7532 32-Core
82nd
10
144
2 x Intel Xeon Silver 4214
79th
3
146 +/- 7
AMD Ryzen 9 5950X 16-Core
79th
74
147 +/- 22
AMD Ryzen Threadripper 3990X 64-Core
78th
14
148 +/- 21
AMD Ryzen Threadripper 2990WX 32-Core
76th
24
150
AMD EPYC 7502P 32-Core
76th
10
150 +/- 1
Intel Core i9-10900K
76th
30
150 +/- 7
AMD EPYC 7502 32-Core
76th
3
150
2 x AMD EPYC 7763 64-Core
76th
22
150 +/- 13
Intel Xeon E-2288G
76th
24
150 +/- 4
Mid-Tier
75th
> 150
2 x AMD EPYC 9654 96-Core
74th
8
151 +/- 10
AMD EPYC 75F3 32-Core
72nd
5
153 +/- 7
2 x Intel Xeon Gold 6254
72nd
6
153 +/- 3
Intel Core i7-1185G7
71st
8
155 +/- 2
2 x AMD EPYC 7371 16-Core
71st
3
155
AMD Ryzen 7 3800XT 8-Core
70th
3
156
2 x AMD EPYC 75F3 32-Core
69th
5
157 +/- 13
AMD EPYC 7352 24-Core
69th
6
157 +/- 9
AMD Ryzen 5 5600X 6-Core
69th
23
158 +/- 17
Intel Core i7-11700K
69th
3
158 +/- 2
2 x AMD EPYC 7543 32-Core
69th
3
159 +/- 16
Intel Core i9-9900KS
69th
3
159 +/- 2
Intel Core i9-11900K
69th
25
160 +/- 12
Intel Core i5-14600K
68th
4
163 +/- 9
Intel Xeon Gold 6226R
67th
7
165 +/- 18
Intel Xeon Silver 4215R
67th
3
166
Intel Core i5-3380M
66th
3
168
Intel Xeon Gold 5217
65th
4
169
2 x AMD EPYC 7313 16-Core
65th
3
170 +/- 17
2 x INTEL XEON GOLD 6548Y
64th
3
171 +/- 5
Intel Core i5-13600K
63rd
12
173 +/- 10
2 x AMD EPYC 74F3 24-Core
63rd
4
173 +/- 9
Intel Core i5-10600K
63rd
12
174 +/- 6
Intel Xeon Gold 6210U
63rd
3
174 +/- 1
AMD EPYC 7542 32-Core
63rd
8
174
AMD EPYC 7F52 16-Core
63rd
8
175
AMD EPYC 7351P 16-Core
63rd
7
175 +/- 18
Intel Core i3-10100
62nd
6
176 +/- 3
AMD Ryzen 7 7700X 8-Core
62nd
12
176 +/- 14
AMD EPYC 3255 8-Core Temp
62nd
5
176 +/- 3
AMD Ryzen 9 7900X3D 12-Core
62nd
6
176
AMD Ryzen 5 1600 Six-Core
62nd
4
176 +/- 24
Intel Core i3-14100
61st
3
178
AMD Ryzen 5 3600XT 6-Core
61st
6
178 +/- 15
Intel Core i5-11600K
61st
5
178 +/- 4
AMD Ryzen 7 7800X3D 8-Core
61st
4
179 +/- 21
AMD Ryzen 7 1700X Eight-Core
61st
4
179 +/- 17
AMD Ryzen Threadripper PRO 5975WX 32-Cores
61st
3
180
AMD Ryzen 5 1600X Six-Core
61st
5
180
AMD EPYC 74F3 24-Core
61st
4
180 +/- 13
AMD Ryzen 9 9950X 16-Core
61st
10
180 +/- 17
AMD Ryzen Threadripper 2950X 16-Core
58th
5
181 +/- 8
Intel Core i5-12600K
58th
11
182 +/- 11
AMD Ryzen Threadripper PRO 3955WX 16-Cores
57th
5
184 +/- 17
AMD EPYC 7F32 8-Core
57th
10
185 +/- 1
AMD EPYC 72F3 8-Core
57th
3
185
2 x AMD EPYC 72F3 8-Core
57th
3
185
AMD EPYC 7F72 24-Core
55th
7
187 +/- 12
2 x AMD EPYC 9554 64-Core
55th
3
187 +/- 1
AMD Ryzen 5 7600X 6-Core
55th
11
188
AMD EPYC 73F3 16-Core
55th
3
189 +/- 12
AMD Ryzen 3 1200
55th
4
189 +/- 6
AMD Ryzen 3 3300X 4-Core
54th
4
190
AMD EPYC 7543 32-Core
54th
5
190 +/- 23
AMD Ryzen Threadripper PRO 5965WX 24-Cores
54th
3
190
AMD EPYC 7262 8-Core
53rd
3
192
2 x AMD EPYC 7F72 24-Core
52nd
4
193 +/- 1
AMD Ryzen 3 3200G
52nd
8
194 +/- 19
2 x Intel $0000%
52nd
5
196 +/- 28
AMD EPYC 7282 16-Core
52nd
11
196 +/- 1
Intel Core i3-10105
52nd
3
196 +/- 6
AMD Ryzen 9 7950X 16-Core
51st
48
197 +/- 24
2 x AMD EPYC 73F3 16-Core
51st
3
198 +/- 20
AMD Ryzen 3 2200G
51st
8
198 +/- 15
Median
50th
200
Intel Xeon W-2295
50th
3
201 +/- 1
Intel Xeon W-1370P
50th
3
202 +/- 28
AMD EPYC 7272 12-Core
50th
8
203 +/- 1
Intel Celeron G5900
49th
5
206 +/- 5
Intel Pentium Gold G6400
49th
5
208 +/- 1
AMD Ryzen Threadripper PRO 7995WX 96-Cores
49th
8
209 +/- 11
AMD EPYC 7232P 8-Core
47th
11
217 +/- 1
2 x Intel Xeon Gold 6354
47th
3
218 +/- 2
AMD EPYC 7551P 32-Core
46th
4
229 +/- 20
Intel Celeron G6900
43rd
3
251
AMD Ryzen 5 2600 Six-Core
42nd
46
255 +/- 34
AMD Phenom II X4 965
41st
8
266 +/- 2
2 x AMD EPYC 7H12 64-Core
36th
3
338
2 x Intel Xeon Gold 5222
36th
8
343 +/- 32
AMD Ryzen 5 8600G
36th
4
348
Intel Atom P5362
35th
4
358 +/- 1
AMD FX-8370E Eight-Core
29th
3
534
2 x Intel Xeon L5640
28th
11
561 +/- 31
2 x Intel Xeon E5-2450L 0
27th
3
584 +/- 7
Low-Tier
25th
> 613
2 x Intel Xeon E5-2670 0
25th
3
633 +/- 6
2 x Intel Xeon X5670
24th
4
645 +/- 58
4 x Intel Xeon Gold 6254
24th
3
650 +/- 3
Intel Xeon X3470
24th
3
658 +/- 65
2 x Intel Xeon Gold 6226
23rd
4
675 +/- 47
AMD FX-8350 Eight-Core
22nd
4
734 +/- 60
Intel Xeon X5550
20th
6
770 +/- 10
Intel Xeon D-2183IT
18th
4
864 +/- 83
Intel Core i7-7800X
17th
3
917 +/- 8
Intel Core i5-7440HQ
16th
4
968 +/- 4
2 x Intel Xeon E5-2697 v3
15th
7
975 +/- 32
Intel Core i7-3960X
12th
3
1074 +/- 50
2 x Intel Xeon E5-2687W 0
12th
4
1075 +/- 4
Intel Core i7-4600U
11th
4
1079 +/- 32
Intel Core i7-6820HQ
11th
11
1093 +/- 30
2 x Intel Xeon E5-2687W v4
10th
3
1109 +/- 23
Intel Core i7-4930K
10th
11
1124 +/- 141
Intel Xeon W-2155
9th
4
1136 +/- 38
Intel Core i7-4790
9th
3
1154 +/- 21
2 x Intel Xeon E5-2403 v2
8th
3
1164 +/- 2
Intel Xeon E5-2667 v4
8th
3
1167 +/- 83
Intel Core i7-4790K
8th
7
1175 +/- 31
Intel Core i3-7100U
7th
3
1223 +/- 73
Intel Core i3-8100
5th
14
1317 +/- 75
Intel Core i3-7100
4th
5
1372 +/- 59
Intel Core i7-8700
2nd
19
1769 +/- 207
2 x Intel Xeon Gold 5118
2nd
8
1879 +/- 185
OpenBenchmarking.orgDistribution Of Public Results - Context Switch Time4281 Results Range From 64 To 28197 Clocks6462711901753231628793442400545685131569462576820738379468509907296351019810761113241188712450130131357614139147021526515828163911695417517180801864319206197692033220895214582202122584231472371024273248362539925962265252708827651282147001400210028003500

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 / Max: 2

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

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.

IntelAMDOpenBenchmarking.orgRelative Core Scaling To Basectx_clock CPU Core ScalingContext Switch Time246810121416243248641280.71881.43762.15642.87523.594

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)

Recent Test Results

OpenBenchmarking.org Results Compare

8 Systems - 25 Benchmark Results

Intel Core i7-4790K - Dell OptiPlex 7020/9020 SFF [OptiPlex v1.0] - Intel 4th Gen Core DRAM

Debian - 6.11.4-amd64 - GNOME Shell 47.0

7 Systems - 25 Benchmark Results

AMD Opteron 4386 - ASUS KCMA-D8 v1.0 - AMD RD890 + SB7x0

Ubuntu 20.04 - 5.8.0-48-generic - GNOME Shell 3.36.7

1 System - 119 Benchmark Results

Intel Core i7-10610U - LENOVO 20UAA0VUCD - Intel Comet Lake PCH-LP

Deepin 23 - 6.6.57 - Deepin Desktop Environment

1 System - 150 Benchmark Results

2 x Montage Jintide C6230R - H3C UniServer R4700 G3 RS33M2C3S - 384GB

Ubuntu 20.04.6 LTS - 6.8.0-47-generic - GCC 9.4.0

2 Systems - 42 Benchmark Results

AMD Ryzen 9 9950X 16-Core - ASUS ProArt X670E-CREATOR WIFI - AMD Device 14d8

Ubuntu 22.04 - 6.8.0-45-lowlatency - GCC 11.4.0

1 System - 37 Benchmark Results

AMD Ryzen 9 9950X 16-Core - ASUS ProArt X670E-CREATOR WIFI - AMD Device 14d8

Ubuntu 22.04 - 6.8.0-45-lowlatency - GCC 11.4.0

1 System - 35 Benchmark Results

Intel Core i7-14700K - MSI MAG Z790 TOMAHAWK MAX WIFI - Intel Device 7a27

Ubuntu 22.04 - 5.15.0-122-generic - 1.3.255

1 System - 347 Benchmark Results

4 x Intel Xeon Gold 5118 - Intel 440BX - Intel 440BX

OracleServer 8.10 - 4.18.0-553.22.1.el8_10.x86_64 - GCC 10.3.1 20210422

1 System - 352 Benchmark Results

8 x Intel Xeon Gold 5118 - Intel 440BX - Intel 440BX

Oracle Linux Server 9.4 - 5.14.0-427.37.1.el9_4.x86_64 - GCC 11.4.1 20231218

1 System - 363 Benchmark Results

2 x Intel Xeon Gold 5118 - Cisco UCSB-B200-M5 - Intel Sky Lake-E DMI3 Registers

OracleServer 8.10 - 5.15.0-208.159.3.2.el8uek.x86_64 - GCC 10.3.1 20210422

1 System - 37 Benchmark Results

AMD Ryzen 5 5600G - ASRock B450M Pro4-F R2.0 - AMD Renoir

Ubuntu 24.04 - 6.10.4-061004-generic - GNOME Shell 46.0

1 System - 37 Benchmark Results

AMD Ryzen 5 5600G - ASRock B450M Pro4-F R2.0 - AMD Renoir

Ubuntu 24.04 - 6.10.4-061004-generic - GNOME Shell 46.0

1 System - 37 Benchmark Results

AMD Ryzen 7 5800X 8-Core - GIGABYTE MC12-LE0-00 v01000100 - AMD Starship

Ubuntu 24.04 - 6.11.0-061100-generic - GNOME Shell 46.0

1 System - 37 Benchmark Results

AMD Ryzen 5 7600 6-Core - MSI PRO B650M-B - AMD Device 14d8

Ubuntu 24.04 - 6.11.0-061100-generic - GNOME Shell 46.0

Most Popular Test Results

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9 Systems - 7 Benchmark Results

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2 Systems - 535 Benchmark Results

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Ubuntu 20.04 - 5.9.0-050900rc7daily20201002-generic - GNOME Shell 3.36.4

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AMD Ryzen 5 3600X 6-Core - ASUS ROG CROSSHAIR VIII HERO - AMD Starship

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12 Systems - 593 Benchmark Results

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16 Systems - 333 Benchmark Results

AMD Ryzen 9 5900X 12-Core - ASUS ROG CROSSHAIR VIII HERO - AMD Starship

Ubuntu 22.04 - 6.0.0-060000rc1daily20220820-generic - GNOME Shell 42.2

8 Systems - 439 Benchmark Results

Intel Core i9-11900K - ASUS ROG MAXIMUS XIII HERO - Intel Tiger Lake-H

Ubuntu 21.04 - 5.12.0-051200rc3daily20210315-generic - GNOME Shell 3.38.3

6 Systems - 143 Benchmark Results

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Ubuntu 20.10 - 5.10.7-051007-generic - GNOME Shell 3.38.1

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Clear Linux OS 29920 - 5.1.9-781.native - GNOME Shell 3.32.2

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Ubuntu 18.04 - 5.0.0-27-generic - GNOME Shell 3.28.4

12 Systems - 209 Benchmark Results

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Ubuntu 18.10 - 5.0.0-999-generic - GNOME Shell 3.30.1
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