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

1 Second

Average Run Time

32 Seconds

Test Dependencies

C/C++ Compiler Toolchain

Accolades

20k+ Downloads

Supported Platforms

Public Result Uploads *Reported Installs **Reported Test Completions **Test Profile Page Views ***OpenBenchmarking.orgEventsctx_clock Popularity Statisticspts/ctx-clock2019.022019.032019.042019.052019.062019.072019.082019.092019.102019.112019.122020.012020.022020.032020.042020.052020.062020.072020.082020.092020.102020.112020.122021.012021.022021.032021.042021.052021.062K4K6K8K10K
* 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 17 June 2021.

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 4,387 public results since 18 February 2019 with the latest data as of 16 June 2021.

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
AMD Ryzen 7 PRO 4750U
100th
3
85
AMD Ryzen 7 4700U
99th
3
100
Intel Core i7-10510U
99th
4
100 +/- 6
AMD EPYC 7713 64-Core
99th
3
101 +/- 1
2 x AMD EPYC 7713 64-Core
99th
3
101 +/- 1
Intel Core i9-10885H
99th
3
104 +/- 15
Intel Xeon Gold 5220R
97th
3
117 +/- 6
AMD Ryzen 5 4500U
97th
8
118
AMD EPYC 7662 64-Core
97th
11
120
AMD EPYC 7702 64-Core
97th
15
120
Intel Xeon Gold 5218
96th
8
122 +/- 4
2 x Intel Xeon Gold 5220R
95th
10
124 +/- 18
AMD Ryzen 5 3550H
95th
3
126
Intel Core i9-10980XE
95th
42
128 +/- 17
Intel Xeon Silver 4216
94th
7
132 +/- 4
AMD EPYC 7552 48-Core
92nd
10
135 +/- 3
AMD EPYC 7742 64-Core
92nd
8
135
2 x AMD EPYC 7742 64-Core
92nd
41
135 +/- 1
AMD Ryzen 9 5950X 16-Core
90th
24
136
2 x Intel Xeon Platinum 8280
89th
46
137 +/- 11
2 x AMD EPYC 7352 24-Core
88th
3
138
2 x AMD EPYC 7642 48-Core
88th
5
138
2 x AMD EPYC 7601 32-Core
88th
29
138 +/- 12
Intel Xeon Platinum 8280
88th
7
138 +/- 7
AMD EPYC 7642 48-Core
87th
19
139 +/- 1
AMD EPYC 7401P 24-Core
87th
3
140
Intel Xeon Silver 4214R
87th
4
140 +/- 4
AMD EPYC 7551 32-Core
87th
4
140
Intel Xeon Gold 6258R
87th
3
140 +/- 6
2 x AMD EPYC 7452 32-Core
87th
3
141
AMD EPYC 7452 32-Core
86th
6
143 +/- 1
2 x AMD EPYC 7763 64-Core
85th
4
144 +/- 7
AMD EPYC 7601 32-Core
85th
9
144 +/- 12
AMD EPYC 7532 32-Core
85th
10
144
AMD Ryzen Threadripper 3990X 64-Core
85th
11
145
AMD EPYC 7763 64-Core
84th
3
146 +/- 6
AMD EPYC 75F3 32-Core
83rd
3
148 +/- 1
AMD Ryzen 9 5900X 12-Core
83rd
27
148
2 x AMD EPYC 75F3 32-Core
83rd
3
148 +/- 1
AMD Ryzen 5 5600X 6-Core
83rd
12
148
Intel Xeon Platinum 8124M
79th
50
149
Intel Core i9-10900K
79th
27
149 +/- 4
AMD Ryzen Threadripper 2990WX 32-Core
78th
28
150
Intel Xeon E-2288G
78th
24
150 +/- 4
AMD EPYC 7502P 32-Core
78th
11
150
AMD EPYC 7502 32-Core
78th
4
150
2 x AMD EPYC 7502 32-Core
78th
4
150
Mid-Tier
75th
> 152
Intel Xeon Gold 6226R
74th
5
153 +/- 4
2 x AMD EPYC 7371 16-Core
74th
3
155
AMD Ryzen 7 3800XT 8-Core
73rd
4
156
Intel Core i9-9900KS
71st
5
160 +/- 3
2 x Intel Xeon Silver 4215R
71st
4
160 +/- 2
AMD EPYC 7352 24-Core
71st
5
161
Intel Core i9-11900K
70th
14
162 +/- 1
AMD Ryzen 7 5800X 8-Core
70th
9
162 +/- 20
Intel Xeon Silver 4215R
70th
4
164 +/- 4
Intel Xeon Gold 5217
69th
5
167 +/- 4
AMD EPYC 7402P 24-Core
69th
15
168
Intel Core i5-3380M
69th
3
168
AMD Ryzen 7 2700 Eight-Core
68th
7
169 +/- 16
Intel Xeon Gold 6210U
67th
3
174 +/- 1
Intel Core i5-10600K
67th
12
174 +/- 6
AMD Ryzen 5 3600X 6-Core
67th
11
174 +/- 17
AMD EPYC 7542 32-Core
67th
8
174
AMD EPYC 7351P 16-Core
66th
7
175 +/- 18
AMD EPYC 7F52 16-Core
66th
9
175
AMD Ryzen 5 1600 Six-Core
66th
4
176 +/- 24
Intel Core i3-10100
66th
8
176 +/- 3
AMD Ryzen 9 3900XT 12-Core
66th
6
176 +/- 13
AMD Ryzen Threadripper 2950X 16-Core
65th
9
178 +/- 7
AMD Ryzen 5 3600XT 6-Core
65th
6
178 +/- 15
AMD Ryzen 3 3200G
65th
5
180
AMD Ryzen 5 1600X Six-Core
65th
5
180
Intel Core i5-11600K
63rd
3
181
AMD EPYC 7F72 24-Core
63rd
8
184 +/- 15
AMD Ryzen 7 2700X Eight-Core
63rd
35
185 +/- 4
AMD EPYC 7F32 8-Core
63rd
11
185
2 x AMD EPYC 7F72 24-Core
62nd
5
186 +/- 15
2 x AMD EPYC 7252 8-Core
62nd
3
189 +/- 6
AMD Ryzen 3 1200
61st
3
190 +/- 7
AMD Ryzen 7 1800X Eight-Core
61st
5
190 +/- 16
AMD Ryzen 3 3300X 4-Core
61st
4
190
AMD EPYC 7302P 16-Core
61st
15
191 +/- 28
2 x AMD EPYC 7262 8-Core
61st
3
192
AMD EPYC 7262 8-Core
61st
3
192
AMD EPYC 7282 16-Core
60th
11
196 +/- 1
AMD Ryzen 5 3600 6-Core
60th
15
197 +/- 26
AMD Ryzen 3 2200G
59th
8
198 +/- 15
Intel Xeon W-2295
59th
3
201 +/- 1
AMD EPYC 7272 12-Core
59th
8
203 +/- 1
Intel Celeron J3455
58th
4
205 +/- 9
Intel Celeron G5900
58th
5
206 +/- 5
Intel Pentium Gold G6400
58th
5
208 +/- 1
AMD EPYC 7232P 8-Core
58th
14
208 +/- 15
2 x Intel $0000%
57th
3
216 +/- 8
AMD Ryzen 5 2600 Six-Core
55th
44
256 +/- 36
Median
50th
389
2 x Intel Xeon E5-2696 v3
50th
3
415 +/- 21
AMD A10-7870K Radeon R7 12 Compute Cores 4C
49th
3
436 +/- 21
2 x Intel Xeon E5-2620 v4
48th
7
476
Intel Xeon Gold 6212U
47th
3
482 +/- 1
Intel Xeon D-1527
47th
100
497
AMD FX-8370E Eight-Core
43rd
5
533 +/- 2
2 x Intel Xeon E5-2450L 0
40th
3
584 +/- 7
2 x Intel Xeon E5-2670 0
37th
3
633 +/- 6
2 x Intel Xeon X5670
37th
4
645 +/- 58
Intel Xeon X3470
36th
3
658 +/- 65
AMD FX-6300 Six-Core
36th
17
658 +/- 69
AMD FX-8350 Eight-Core
34th
4
734 +/- 60
Intel Xeon X5550
33rd
6
770 +/- 10
Intel Core i7-7800X
30th
3
917 +/- 8
2 x Intel Xeon E5-2697 v3
29th
7
975 +/- 32
Low-Tier
25th
> 1035
Intel Core i7-6820HQ
20th
11
1093 +/- 30
Intel Core i7-4930K
19th
14
1130 +/- 135
Intel Xeon W-2155
16th
4
1136 +/- 38
Intel Core i5-4690K
16th
3
1138 +/- 6
2 x Intel Xeon E5-2403 v2
15th
3
1164 +/- 2
Intel Xeon E3-1225 v6
15th
98
1166
Intel Xeon E5-2667 v4
13th
3
1167 +/- 83
Intel Core i3-7100U
11th
3
1223 +/- 73
Intel Core i3-7100
8th
5
1372 +/- 59
Intel Celeron J4115
6th
50
3201
OpenBenchmarking.orgDistribution Of Public Results - Context Switch Time4387 Results Range From 64 To 28197 Clocks6462711901753231628793442400545685131569462576820738379468509907296351019810761113241188712450130131357614139147021526515828163911695417517180801864319206197692033220895214582202122584231472371024273248362539925962265252708827651282146001200180024003000

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: 0.15 / Max: 3

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 Time2468121618243248641280.77081.54162.31243.08323.854

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: 10 May 2021

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

Recent Test Results

OpenBenchmarking.org Results Compare

1 System - 25 Benchmark Results

Intel Core i7-9700K - Gigabyte Z390 I AORUS PRO WIFI-CF - Intel Cannon Lake PCH

Ubuntu 20.04 - 5.8.0-55-generic - GNOME Shell 3.36.9

1 System - 25 Benchmark Results

AMD Ryzen 7 PRO 4750G - ASUS TUF GAMING X570-PLUS - AMD Renoir Root Complex

Ubuntu 20.04 - 5.8.0-55-generic - GNOME Shell 3.36.7

1 System - 17 Benchmark Results

Intel Xeon E5-2698 v4 - FUJITSU D3348-B2 - Intel Xeon E7 v4

Ubuntu 20.04 - 5.4.0-74-generic - MATE 1.24.0

1 System - 23 Benchmark Results

2 x Intel Xeon E5-2650 v4 - Supermicro X10DRi-LN4+ v1.01 - Intel Xeon E7 v4

Ubuntu 21.04 - 5.11.0-18-generic - 1.0.2

1 System - 24 Benchmark Results

Intel Core i5-6300U - LENOVO 20FAS14J01 - Intel Xeon E3-1200 v5

Ubuntu 20.04 - 5.6.9-050609-generic - X Server 1.20.9

1 System - 62 Benchmark Results

AMD EPYC 7402P 24-Core - GIGABYTE MZ22-G20-00 v01000100 - AMD Device 1480

Ubuntu 16.04 - 4.15.0-142-generic - Unity 7.4.5

1 System - 63 Benchmark Results

AMD EPYC 7402P 24-Core - GIGABYTE MZ22-G20-00 v01000100 - AMD Device 1480

Ubuntu 16.04 - 4.15.0-142-generic - Unity 7.4.5

7 Systems - 20 Benchmark Results

AMD EPYC - Hetzner vServer v20171111 - 1 x 8000 MB RAM QEMU

Debian 11 - 5.10.35-rt39-xanmod1 - GCC 10.2.1 20210110

1 System - 25 Benchmark Results

2 x Intel Xeon - OpenStack Foundation Nova v21.0.0 - Intel 440FX 82441FX PMC

Ubuntu 20.04 - 5.4.0-74-generic - GCC 9.3.0

1 System - 25 Benchmark Results

2 x Intel Xeon - OpenStack Foundation Nova v21.0.0 - Intel 440FX 82441FX PMC

Ubuntu 20.04 - 5.4.0-74-generic - GCC 9.3.0

6 Systems - 20 Benchmark Results

AMD EPYC - Hetzner vServer v20171111 - 1 x 8000 MB RAM QEMU

Debian 10 - 4.19.0-16-amd64 - GCC 8.3.0

5 Systems - 20 Benchmark Results

AMD EPYC - Hetzner vServer v20171111 - 1 x 8000 MB RAM QEMU

Debian 11 - 5.12.8-051208-generic - GCC 10.2.1 20210110

Most Popular Test Results

OpenBenchmarking.org Results Compare

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

AMD Ryzen 9 3900XT 12-Core - ASUS ROG CROSSHAIR VIII HERO - AMD Starship

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

12 Systems - 593 Benchmark Results

AMD Ryzen 5 3600X 6-Core - MSI X470 GAMING M7 AC - AMD Starship

Ubuntu 20.04 - 5.8.0-050800daily20200622-generic - GNOME Shell 3.36.2

12 Systems - 209 Benchmark Results

Intel Core i5-9400F - MSI B360M GAMING PLUS - Intel Cannon Lake PCH

Ubuntu 19.04 - 5.2.0-999-generic - GNOME Shell 3.32.1

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 - 360 Benchmark Results

AMD Ryzen Threadripper 3960X 24-Core - MSI Creator TRX40 - AMD Starship

Ubuntu 19.10 - 5.4.0-999-generic - GNOME Shell 3.34.1

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

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

5 Systems - 29 Benchmark Results

4 x QEMU Virtual 2.5+ - QEMU Standard PC - Intel 440FX- 82441FX PMC

Ubuntu 18.04 - 4.15.0-88-generic - ext4

3 Systems - 21 Benchmark Results

AMD Ryzen 3 PRO 4450U - LENOVO 20U6S1SD00 - AMD Renoir Root Complex

Arch rolling - 5.10.16-zen1-1-zen - GNOME Shell 3.38.3
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