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2026-07-03 - 12:16

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 Fri Jul 03, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
219499890,6rtkit-daemon15-21rcuc/018:42:210
219499880,4rtkit-daemon2193-21rtkit-daemon23:39:323
3133499866,72cyclictest0-21swapper/320:55:573
219499860,5rtkit-daemon2193-21rtkit-daemon22:35:343
3133499854,73cyclictest0-21swapper/320:42:103
219499850,5rtkit-daemon2193-21rtkit-daemon20:58:313
3133499844,71cyclictest0-21swapper/323:16:463
219499830,5rtkit-daemon2193-21rtkit-daemon23:18:032
219499830,5rtkit-daemon2193-21rtkit-daemon23:18:032
3133499826,68cyclictest0-21swapper/322:53:073
3133499824,61cyclictest0-21swapper/322:42:413
31334998119,34cyclictest5028-21processes23:17:253
31334998119,34cyclictest5028-21processes23:17:253
219499810,4rtkit-daemon2193-21rtkit-daemon22:09:053
3133499804,67cyclictest0-21swapper/319:32:043
3133499803,37cyclictest1910-21sort00:02:073
3133499797,51cyclictest0-21swapper/323:02:143
3133499785,65cyclictest0-21swapper/322:16:383
3133499783,65cyclictest11834-21fschecks_count19:02:223
3133499783,65cyclictest11834-21fschecks_count19:02:223
3133499776,64cyclictest0-21swapper/323:59:203
3133499776,64cyclictest0-21swapper/323:59:203
3133499774,54cyclictest0-21swapper/319:02:063
3133499773,56cyclictest0-21swapper/321:17:063
219499770,5rtkit-daemon2193-21rtkit-daemon21:16:530
219499770,5rtkit-daemon2193-21rtkit-daemon21:16:530
3133499767,62cyclictest0-21swapper/323:53:543
3133499765,64cyclictest0-21swapper/321:32:333
3133499764,64cyclictest0-21swapper/320:32:143
3133499764,64cyclictest0-21swapper/320:32:143
31334997620,38cyclictest1124-21snmpd23:34:383
3133499762,57cyclictest0-21swapper/321:44:063
3133499756,53cyclictest0-21swapper/323:25:573
3133499754,63cyclictest0-21swapper/322:19:293
3133499754,63cyclictest0-21swapper/321:52:163
3133499753,46cyclictest20505-21kworker/3:020:51:433
3133499746,61cyclictest0-21swapper/321:11:413
3133499745,62cyclictest0-21swapper/322:50:213
3133499745,45cyclictest0-21swapper/322:27:413
3133499744,63cyclictest0-21swapper/321:57:133
3133499744,63cyclictest0-21swapper/321:57:133
3133499744,63cyclictest0-21swapper/321:48:343
3133499743,63cyclictest0-21swapper/322:06:053
3133499743,52cyclictest25052-21ssh23:47:223
3133499743,50cyclictest0-21swapper/321:02:013
219499740,9rtkit-daemon0-21swapper/021:41:070
219499740,21rtkit-daemon0-21swapper/118:38:360
3133499736,49cyclictest0-21swapper/322:58:083
3133499734,53cyclictest30725-21grep23:07:273
3133499733,62cyclictest0-21swapper/321:29:503
219499730,4rtkit-daemon2193-21rtkit-daemon21:36:590
3133499727,48cyclictest0-21swapper/321:24:423
3133499725,60cyclictest0-21swapper/321:14:533
3133499725,60cyclictest0-21swapper/321:14:533
3133499725,59cyclictest0-21swapper/321:37:103
3133499724,40cyclictest0-21swapper/323:27:193
31334997230,34cyclictest32053-21unixbench_singl19:42:353
3133499723,54cyclictest0-21swapper/322:41:353
3133499723,54cyclictest0-21swapper/322:41:353
3133499717,48cyclictest1547-21nscd20:37:273
3133499714,59cyclictest0-21swapper/323:44:593
3133499704,52cyclictest0-21swapper/322:22:253
3133499702,61cyclictest19517-21munin-node20:27:173
31333997029,26cyclictest31154-21munin-node20:47:372
3133199705,57cyclictest0-21swapper/123:56:531
3133199698,53cyclictest0-21swapper/122:46:561
219499690,5rtkit-daemon2193-21rtkit-daemon21:49:440
219499690,5rtkit-daemon2193-21rtkit-daemon21:22:070
3133499686,52cyclictest0-21swapper/319:15:433
3133499684,57cyclictest0-21swapper/318:52:243
3133499683,57cyclictest14403-21sshd20:15:463
31334996827,32cyclictest5800-21unixbench_singl18:47:393
31334996825,37cyclictest2546-21munin-node18:42:263
123482683,24sleep00-21swapper/023:27:490
3133499675,45cyclictest0-21swapper/319:52:213
3133499674,52cyclictest0-21swapper/319:33:553
3133499673,48cyclictest17344-21cpu20:22:143
31334996721,38cyclictest622-21timerandwakeup18:37:403
3133399674,43cyclictest0-21swapper/223:42:272
219499670,4rtkit-daemon2193-21rtkit-daemon21:45:290
219499670,4rtkit-daemon2193-21rtkit-daemon21:31:590
3133499664,55cyclictest0-21swapper/320:07:063
31334996629,30cyclictest1227-21runrttasks19:41:523
31334996625,33cyclictest18928-21df_abs19:17:213
3133399664,27cyclictest0-21swapper/221:01:062
219499660,5rtkit-daemon2193-21rtkit-daemon21:54:060
3133499655,53cyclictest0-21swapper/319:57:263
3133499654,53cyclictest0-21swapper/320:02:363
31333996544,14cyclictest0-21swapper/223:02:262
31333996537,22cyclictest0-21swapper/221:18:052
3133199654,53cyclictest0-21swapper/119:57:241
219499650,7rtkit-daemon0-21swapper/122:03:280
3133499645,43cyclictest0-21swapper/319:47:263
31333996435,7cyclictest30398-21latency_hist23:56:542
219499640,5rtkit-daemon2193-21rtkit-daemon22:20:202
3133499633,27cyclictest22608-21taskset19:23:223
31334996322,33cyclictest15332-21forks20:17:193
31333996341,15cyclictest0-21swapper/223:32:322
3133199634,50cyclictest2348-21timerwakeupswit21:37:301
285672633,12sleep10-21swapper/123:05:531
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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