You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-04-25 - 01:47

OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

Default latency plot of shadow in rack #5, slot #3

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
Special  All - All RT - Optimization - Ethernet - Thumbnails - Next
  
Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack5slot3s.osadl.org (updated Fri Apr 24, 2026 12:44:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
168482239162,24sleep30-21swapper/307:09:033
168102235162,60sleep00-21swapper/007:08:300
168812234163,58sleep20-21swapper/207:09:262
166242199164,23sleep10-21swapper/107:06:101
2791321540,4sleep11701599cyclictest07:30:221
35992930,3sleep11701599cyclictest11:30:171
17019997571,3cyclictest0-21swapper/212:16:282
17019997471,2cyclictest0-21swapper/210:39:202
255742590,2sleep30-21swapper/308:40:153
293902510,3sleep229394-21unixbench-2d10:00:252
207852440,2sleep30-21swapper/310:55:193
66902420,1sleep30-21swapper/307:55:253
17019994238,3cyclictest0-21swapper/211:28:422
17019994238,3cyclictest0-21swapper/211:28:422
17010994011,14cyclictest31130-21crond12:35:010
1701099389,13cyclictest947-21idleruntime-cro12:40:010
1701099389,13cyclictest947-21idleruntime-cro12:40:010
1701099358,13cyclictest20161-21munin-run12:10:010
1701999341,15cyclictest0-21swapper/209:40:172
1701099339,11cyclictest24895-21perf08:40:010
161552330,5sleep07-21ksoftirqd/008:20:020
291462320,4sleep029148-21gltestperf11:15:140
1701099318,11cyclictest19198-21basename07:15:020
1701099316,12cyclictest11360-21munin-run11:50:010
1701599299,12cyclictest0-21swapper/109:20:141
1702599280,5cyclictest0-21swapper/311:47:453
17019992716,3cyclictest0-21swapper/212:20:402
1701999271,10cyclictest27591-21sendmail_mailqu11:10:232
1701999268,3cyclictest16648-21df08:20:122
17019992614,2cyclictest30984-21taskset12:33:082
1701999261,15cyclictest617-21if_enp2s010:10:162
1701999261,12cyclictest0-21swapper/207:50:132
1701099264,11cyclictest0-21swapper/008:30:020
303762250,2sleep081ktimersoftd/008:50:160
1701599251,5cyclictest5648-40dnf09:09:251
1701599251,17cyclictest0-21swapper/110:24:121
1701599251,16cyclictest15366-21users11:55:261
1702599242,13cyclictest0-21swapper/309:35:253
1702599241,9cyclictest0-21swapper/309:55:083
1701999245,2cyclictest0-21swapper/212:25:242
1701999241,14cyclictest0-21swapper/211:05:242
1701999241,14cyclictest0-21swapper/209:45:252
1701599248,3cyclictest30592-21grep11:20:021
1701599243,3cyclictest7438-21latency10:25:161
1701599241,4cyclictest19187-21hddtemp_smartct08:25:151
1701599240,19cyclictest0-21swapper/112:13:501
1701099242,9cyclictest26434-21kworker/0:212:21:430
1701099241,11cyclictest13348-21kworker/0:111:54:180
1701099240,11cyclictest11711-21idleruntime-cro08:10:020
3042233,2sleep3425-21processes08:55:213
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional