You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-03-21 - 09:00

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 #1, slot #6

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
  Intel
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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack1slot6s.osadl.org (updated Sat Mar 21, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2486121500,2sleep1201ktimersoftd/121:18:311
26849999433,12cyclictest0-21swapper/121:35:501
26849999433,12cyclictest0-21swapper/121:35:501
315382820,3sleep3361ktimersoftd/318:53:233
2685299654,44cyclictest0-21swapper/321:41:093
17562634,50sleep30-21swapper/322:22:553
17562634,50sleep30-21swapper/322:22:553
248599620,5rtkit-daemon2484-21rtkit-daemon20:33:591
26849996033,13cyclictest0-21swapper/122:12:551
248599600,12rtkit-daemon2484-21rtkit-daemon21:27:271
26851995917,13cyclictest0-21swapper/222:36:562
2685199591,44cyclictest0-21swapper/220:40:152
26846995913,11cyclictest0-21swapper/022:42:540
247882583,10sleep20-21swapper/218:38:322
184132583,10sleep00-21swapper/022:46:550
26846995724,11cyclictest0-21swapper/022:58:140
26846995720,21cyclictest0-21swapper/020:08:220
220622573,46sleep30-21swapper/319:40:033
72602563,12sleep20-21swapper/220:05:342
2685299565,45cyclictest20818-21users22:48:273
2685299565,44cyclictest30818-21diskstats19:53:163
2685299565,44cyclictest22868-21users22:03:303
2685299564,45cyclictest0-21swapper/322:53:043
26852995636,6cyclictest13962-21ssh20:15:233
26852995636,6cyclictest13962-21ssh20:15:233
2685199564,36cyclictest0-21swapper/222:21:472
2685199564,36cyclictest0-21swapper/222:21:472
2684699562,50cyclictest0-21swapper/020:36:520
26846995612,9cyclictest11967-21crond22:37:550
262662563,13sleep00-21swapper/019:47:260
8262553,9sleep10-21swapper/122:19:431
8262553,9sleep10-21swapper/122:19:431
327332553,45sleep00-21swapper/017:48:250
325542553,45sleep00-21swapper/019:55:040
2685299557,13cyclictest2001-21fschecks_time19:58:173
2685299554,44cyclictest27704-21ssh19:48:213
2685299554,43cyclictest15604-21df_inode19:28:183
2685299553,44cyclictest25419-21munin-node22:08:173
2685299553,43cyclictest5509-21munin-node22:28:083
2685299553,43cyclictest1813-21munin-node17:53:313
26851995541,9cyclictest29982-21wc23:03:132
26851995520,12cyclictest8973-21fschecks_time20:08:182
2685199552,40cyclictest0-21swapper/222:59:592
26851995518,20cyclictest15353-21nscd22:28:052
2684699552,47cyclictest0-21swapper/021:53:490
248599550,6rtkit-daemon2484-21rtkit-daemon21:17:571
248599550,5rtkit-daemon2484-21rtkit-daemon20:48:281
248599550,5rtkit-daemon2484-21rtkit-daemon19:43:161
248599550,5rtkit-daemon2484-21rtkit-daemon18:03:351
248599550,5rtkit-daemon2484-21rtkit-daemon18:03:351
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional