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2026-03-19 - 15:13
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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 100 highest latencies:
System rack0slot5.osadl.org (updated Thu Mar 19, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
418227999597597,0cyclictest0-21swapper/1322:15:185
41822799952222,499cyclictest0-21swapper/1323:15:575
418227999518516,2cyclictest93855-21kworker/13:1+i915-unordered21:17:575
4182250995065,499cyclictest0-21swapper/620:11:5712
418224099492491,1cyclictest972-21kworker/3:0+i915-unordered20:08:579
4182250994895,44cyclictest0-21swapper/623:48:5712
418224099488487,1cyclictest71305-21kworker/3:0+i915-unordered20:50:579
418225499467467,0cyclictest0-21swapper/723:11:5713
418228399465464,1cyclictest100037-21kworker/14:0+i915-unordered21:43:576
418227999463462,1cyclictest0-21swapper/1323:10:575
418228399460458,2cyclictest38496-21kworker/14:2+i915-unordered20:11:576
418224699460458,2cyclictest134030-21kworker/5:0+i915-unordered22:32:5711
41822509945629,426cyclictest0-21swapper/600:19:5212
418226499455453,2cyclictest214523-21kworker/10:2+i915-unordered00:08:572
41822359945428,29cyclictest0-21swapper/222:01:198
41822359945428,29cyclictest0-21swapper/222:01:198
41822359945326,424cyclictest0-21swapper/222:42:188
41822799945126,424cyclictest142-21ksoftirqd/1320:26:575
418224099450449,1cyclictest0-21swapper/321:17:579
41822359945025,30cyclictest0-21swapper/223:04:428
41822799944926,29cyclictest142-21ksoftirqd/1323:40:575
41822799944926,29cyclictest0-21swapper/1321:30:575
418224699448446,2cyclictest186367-21kworker/5:0+i915-unordered23:15:5711
418224099448447,1cyclictest0-21swapper/322:01:579
418224099448447,1cyclictest0-21swapper/322:01:579
4182254994402,437cyclictest0-21swapper/720:48:5713
41822879943918,421cyclictest0-21swapper/1523:20:577
41822839943918,28cyclictest0-21swapper/1421:20:576
418224099439439,0cyclictest0-21swapper/320:48:579
41822329943913,30cyclictest0-21swapper/120:30:191
41822839943714,30cyclictest0-21swapper/1421:46:576
41822409943622,29cyclictest0-21swapper/322:16:579
418228799432431,0cyclictest146188-21kworker/15:2+i915-unordered23:11:577
41822409943213,29cyclictest0-21swapper/323:06:579
4182287994318,30cyclictest0-21swapper/1521:19:527
4182279994316,30cyclictest0-21swapper/1321:11:575
418228399430430,0cyclictest0-21swapper/1423:11:576
418224099430429,1cyclictest0-21swapper/320:32:579
418226499429426,3cyclictest1818-21snmpd19:12:522
418226499429426,3cyclictest1818-21snmpd19:12:522
418224099428427,1cyclictest0-21swapper/321:43:579
4182235994270,30cyclictest0-21swapper/219:21:198
4182250994266,419cyclictest0-21swapper/623:30:4112
4182235994260,30cyclictest0-21swapper/200:03:188
41822509942525,397cyclictest0-21swapper/621:13:1812
4182235994250,30cyclictest0-21swapper/223:56:188
4182235994250,30cyclictest0-21swapper/223:10:418
4182235994250,30cyclictest0-21swapper/220:32:198
4182235994250,29cyclictest0-21swapper/222:20:438
4182279994240,30cyclictest0-21swapper/1320:35:575
4182250994240,29cyclictest0-21swapper/621:25:2012
418224699424424,0cyclictest0-21swapper/520:17:5711
4182235994240,30cyclictest0-21swapper/221:54:198
4182235994240,30cyclictest0-21swapper/221:35:408
4182283994232,30cyclictest0-21swapper/1423:28:576
41822329942326,396cyclictest0-21swapper/120:15:191
418225499422421,1cyclictest1818-21snmpd20:19:5113
4182283994210,29cyclictest0-21swapper/1423:33:576
41822359942126,393cyclictest0-21swapper/200:38:188
41822359942025,393cyclictest0-21swapper/200:31:428
41822329942022,397cyclictest0-21swapper/119:42:391
418224699419417,2cyclictest158296-21kworker/5:2+i915-unordered23:10:5711
418228399418417,1cyclictest0-21swapper/1423:15:576
41822699941825,392cyclictest0-21swapper/1122:34:533
41822699941819,398cyclictest0-21swapper/1120:00:193
418224099418417,1cyclictest0-21swapper/322:05:579
418224099418417,1cyclictest0-21swapper/322:05:579
41822329941823,395cyclictest0-21swapper/121:05:201
41822799941723,394cyclictest0-21swapper/1320:40:575
41822699941719,397cyclictest0-21swapper/1121:09:403
41822329941719,397cyclictest0-21swapper/122:45:421
41822329941719,397cyclictest0-21swapper/119:35:181
4182261994161,414cyclictest0-21swapper/900:25:5715
41822329941617,398cyclictest0-21swapper/122:02:191
41822329941617,398cyclictest0-21swapper/122:02:191
41822329941616,399cyclictest0-21swapper/123:54:201
418227999415415,0cyclictest0-21swapper/1319:31:575
41822699941517,397cyclictest0-21swapper/1120:50:213
418226199415414,1cyclictest0-21swapper/923:10:5715
41822469941526,388cyclictest0-21swapper/523:31:5711
41822409941523,391cyclictest0-21swapper/322:35:579
41822329941517,397cyclictest0-21swapper/121:56:191
41822329941517,397cyclictest0-21swapper/119:49:421
41822329941516,398cyclictest0-21swapper/123:37:191
41822329941516,398cyclictest0-21swapper/121:51:391
4182246994140,0cyclictest0-21swapper/522:25:5711
41822329941417,396cyclictest0-21swapper/122:37:181
41822329941415,398cyclictest0-21swapper/123:40:391
41822329941414,399cyclictest0-21swapper/122:13:411
41822799941320,392cyclictest0-21swapper/1323:58:575
41822649941321,391cyclictest0-21swapper/1000:15:572
41822469941324,389cyclictest0-21swapper/519:45:5711
41822329941315,397cyclictest0-21swapper/123:09:421
41822329941314,398cyclictest0-21swapper/119:58:201
41822839941218,393cyclictest0-21swapper/1419:30:576
418226199412409,2cyclictest29553-21kworker/u64:8+events_unbound20:00:5715
41822509941215,395cyclictest0-21swapper/619:25:1912
41822509941213,398cyclictest0-21swapper/620:02:1812
41822409941223,389cyclictest0-21swapper/322:50:579
418223299412409,2cyclictest2819-21gnome-shell00:25:571
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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