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2026-06-21 - 04:41

OSADL QA Farm on Real-time of Mainline Linux

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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 
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  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 100 highest latencies:
System rack1slot6s.osadl.org (updated Sun Jun 21, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2194991290,5rtkit-daemon2193-21rtkit-daemon22:08:442
2194991260,6rtkit-daemon2193-21rtkit-daemon21:03:322
2194991240,5rtkit-daemon2193-21rtkit-daemon21:51:452
2194991230,5rtkit-daemon2193-21rtkit-daemon20:00:492
2194991110,4rtkit-daemon2193-21rtkit-daemon23:04:570
25726991045,28cyclictest19634-21taskset20:48:392
2194991020,9rtkit-daemon0-21swapper/223:56:032
2194991010,5rtkit-daemon2193-21rtkit-daemon23:45:033
2194991010,5rtkit-daemon2193-21rtkit-daemon23:45:033
25726999918,12cyclictest0-21swapper/221:28:412
25726999811,28cyclictest0-21swapper/223:28:262
2572699974,26cyclictest0-21swapper/221:18:302
25726999734,57cyclictest25930-21sed00:08:322
25726999621,15cyclictest0-21swapper/222:43:362
2572799954,81cyclictest0-21swapper/321:14:013
2572699954,28cyclictest0-21swapper/223:38:412
2572699954,26cyclictest0-21swapper/221:48:162
219499950,6rtkit-daemon0-21swapper/200:03:252
2572699946,13cyclictest0-21swapper/223:09:062
2572699944,26cyclictest0-21swapper/222:28:492
219499940,6rtkit-daemon0-21swapper/223:58:482
219499940,5rtkit-daemon107550irq/46-eth000:11:320
2572699934,25cyclictest0-21swapper/222:18:262
2572699925,27cyclictest0-21swapper/223:03:472
2572699924,30cyclictest0-21swapper/221:23:372
2572699924,26cyclictest0-21swapper/223:18:442
25726999223,11cyclictest0-21swapper/223:49:142
25726999223,11cyclictest0-21swapper/223:49:142
25726999216,18cyclictest30747-21head21:53:282
25726999213,13cyclictest0-21swapper/222:53:432
219499920,6rtkit-daemon0-21swapper/222:58:272
219499920,4rtkit-daemon2193-21rtkit-daemon22:35:580
2572799913,63cyclictest29722-21fschecks_count21:03:363
2572699914,23cyclictest21835-21proc_pri21:38:452
2572699914,11cyclictest2284-21gltestperf23:33:312
2572699913,15cyclictest12583-21tune2fs22:13:322
25726999121,21cyclictest26826-21ntp_kernel_err20:58:452
25726999121,21cyclictest26826-21ntp_kernel_err20:58:452
25726999118,12cyclictest0-21swapper/222:33:362
25726999116,10cyclictest20450-21unixbench_singl22:23:482
25726999113,13cyclictest0-21swapper/221:08:322
2572699906,16cyclictest0-21swapper/222:03:372
2572699904,27cyclictest0-21swapper/221:13:412
2572699904,25cyclictest0-21swapper/223:24:242
2572699904,25cyclictest0-21swapper/221:33:382
25726999019,12cyclictest0-21swapper/221:58:382
2572699894,27cyclictest0-21swapper/220:34:582
2572699894,25cyclictest4000-21tune2fs22:48:302
2572699894,25cyclictest0-21swapper/220:54:182
2572699894,12cyclictest0-21swapper/223:18:052
2572699894,10cyclictest28854-21sh22:38:252
2572699885,25cyclictest0-21swapper/219:18:322
2572699884,13cyclictest0-21swapper/223:45:152
2572699884,13cyclictest0-21swapper/223:45:152
25726998826,53cyclictest0-21swapper/219:03:392
25726998814,13cyclictest0-21swapper/220:23:472
2572799874,61cyclictest0-21swapper/300:06:313
2572799873,64cyclictest6516-21munin-run20:23:193
2572799873,64cyclictest6516-21munin-run20:23:193
2572699875,28cyclictest0-21swapper/219:50:222
2572699875,28cyclictest0-21swapper/219:23:412
2572699874,12cyclictest0-21swapper/218:54:412
2572699874,12cyclictest0-21swapper/218:54:412
25726998716,13cyclictest0-21swapper/200:13:522
2572699864,28cyclictest0-21swapper/220:38:412
2572699864,26cyclictest0-21swapper/219:33:452
2572699864,15cyclictest0-21swapper/220:43:502
25726998627,11cyclictest18583-21latency19:38:432
25726998627,11cyclictest18583-21latency19:38:432
2572799854,63cyclictest0-21swapper/322:58:243
2572799853,71cyclictest0-21swapper/322:52:413
2572799853,65cyclictest0-21swapper/300:12:133
2572699854,27cyclictest5483-21memory20:18:422
2572699854,27cyclictest5483-21memory20:18:422
25726998529,10cyclictest25967-21aten2.4-expect18:48:342
25726998522,12cyclictest0-21swapper/219:08:442
2572799844,73cyclictest26108-21diskstats20:58:353
2572799844,73cyclictest26108-21diskstats20:58:353
2572799844,73cyclictest0-21swapper/321:44:513
2572799844,72cyclictest0-21swapper/321:38:333
2572799844,59cyclictest1227-21runrttasks19:51:213
2572799843,66cyclictest107550irq/46-eth021:53:493
219499840,16rtkit-daemon361ktimersoftd/322:03:373
2572799834,72cyclictest0-21swapper/321:52:173
2572799833,72cyclictest29547-21wc00:13:343
2572799833,72cyclictest0-21swapper/323:09:233
2572799833,45cyclictest0-21swapper/322:28:283
2572699835,27cyclictest0-21swapper/220:29:582
2572699834,34cyclictest0-21swapper/220:08:432
2572699834,24cyclictest0-21swapper/220:13:312
2572799824,70cyclictest0-21swapper/322:18:393
2572799824,69cyclictest0-21swapper/323:28:403
2572799824,62cyclictest0-21swapper/322:38:413
2572799823,71cyclictest8060-21processes22:53:433
2572799823,67cyclictest1190-21unixbench_singl20:08:513
2572699824,25cyclictest0-21swapper/220:04:522
2572699824,25cyclictest0-21swapper/219:43:322
2572699824,23cyclictest0-21swapper/219:28:342
2572799819,64cyclictest0-21swapper/321:08:353
2572799814,69cyclictest0-21swapper/319:13:333
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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