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2026-03-31 - 21:02
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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 Tue Mar 31, 2026 00:43:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
408756699514511,3cyclictest4104234-21kworker/4:0+i915-unordered21:25:3610
408756699500500,0cyclictest0-21swapper/422:58:3510
408759699495495,0cyclictest0-21swapper/1120:13:363
408759999468437,31cyclictest0-21swapper/1221:25:364
408759999456456,0cyclictest79742-21kworker/12:2+i915-unordered22:58:354
408757499448448,0cyclictest0-21swapper/600:00:3512
40875969944522,29cyclictest0-21swapper/1120:29:313
408761299443442,1cyclictest0-21swapper/1521:42:367
40876049944325,29cyclictest0-21swapper/1323:34:565
40875969944326,29cyclictest0-21swapper/1123:50:353
40875969944224,29cyclictest0-21swapper/1120:48:353
408757999442441,1cyclictest15349-21kworker/7:0+i915-unordered21:42:3613
40875799944121,419cyclictest0-21swapper/700:11:3513
40875559944115,29cyclictest0-21swapper/100:10:191
408760799440438,2cyclictest69750irq/159-i91521:42:366
40875609944015,30cyclictest0-21swapper/221:35:358
40875559944015,30cyclictest0-21swapper/120:34:581
408755199438431,6cyclictest1818-21snmpd00:10:480
40875639943716,420cyclictest0-21swapper/320:04:579
40875609943717,29cyclictest0-21swapper/221:40:358
4087599994369,30cyclictest0-21swapper/1222:16:354
4087555994359,30cyclictest0-21swapper/120:46:181
4087555994358,30cyclictest0-21swapper/123:53:581
40876049943413,28cyclictest0-21swapper/1300:12:565
40876049943411,29cyclictest0-21swapper/1319:51:175
40875799943415,29cyclictest0-21swapper/720:33:3513
40875749943417,29cyclictest0-21swapper/600:06:3512
408757099434428,5cyclictest1818-21snmpd20:32:4811
40875559943411,29cyclictest0-21swapper/120:17:581
4087555994337,29cyclictest0-21swapper/121:43:181
408755599433433,0cyclictest0-21swapper/119:28:361
40875559943310,30cyclictest0-21swapper/122:41:571
40875559943310,30cyclictest0-21swapper/119:18:181
40875559943310,29cyclictest0-21swapper/123:14:191
40875559943310,29cyclictest0-21swapper/120:25:211
40875519943340,392cyclictest4127477-21awk19:54:570
40875609943211,29cyclictest0-21swapper/221:06:358
4087555994329,30cyclictest0-21swapper/123:45:201
4087555994329,29cyclictest0-21swapper/123:28:201
40875559943212,29cyclictest0-21swapper/121:26:581
40875999943125,28cyclictest0-21swapper/1222:06:354
4087555994318,30cyclictest0-21swapper/123:02:581
408758499430425,5cyclictest1818-21snmpd20:40:4815
4087599994287,29cyclictest0-21swapper/1221:11:354
4087563994270,30cyclictest0-21swapper/300:25:589
408760799426425,1cyclictest69750irq/159-i91519:23:366
408760799425425,0cyclictest69750irq/159-i91523:15:356
408760799425423,2cyclictest69750irq/159-i91500:26:356
408760799425423,1cyclictest69750irq/159-i91522:23:356
408760799425423,1cyclictest69750irq/159-i91519:13:366
4087574994254,29cyclictest0-21swapper/619:33:3612
408757499425425,0cyclictest0-21swapper/620:57:3612
4087599994247,29cyclictest0-21swapper/1223:01:354
4087599994241,422cyclictest0-21swapper/1220:12:364
4087581994240,29cyclictest0-21swapper/822:09:5814
4087581994240,29cyclictest0-21swapper/820:54:5914
4087579994240,27cyclictest0-21swapper/722:49:3113
4087599994232,29cyclictest0-21swapper/1223:07:354
4087599994231,30cyclictest0-21swapper/1221:17:354
4087596994231,30cyclictest124-21ksoftirqd/1123:43:353
408757499423420,3cyclictest0-21swapper/622:01:3512
4087555994230,30cyclictest0-21swapper/123:57:351
40875519942324,398cyclictest0-21swapper/021:48:350
40875849942125,395cyclictest0-21swapper/921:52:3515
40875819942125,395cyclictest0-21swapper/823:48:5814
40875749942158,0cyclictest4108339-21kworker/6:0+i915-unordered19:48:3612
4087574994212,29cyclictest0-21swapper/620:30:3512
408756699421421,0cyclictest0-21swapper/422:23:3510
40875519942123,394cyclictest0-21swapper/020:10:360
40875519942121,399cyclictest0-21swapper/000:25:180
40875819942025,394cyclictest0-21swapper/822:17:5814
4087579994200,30cyclictest0-21swapper/719:43:3613
4087579994200,30cyclictest0-21swapper/719:43:3613
4087579994200,29cyclictest0-21swapper/719:27:3613
40875639941921,397cyclictest0-21swapper/320:11:369
40875639941921,396cyclictest0-21swapper/321:19:579
40876049941819,397cyclictest0-21swapper/1322:12:585
40875819941824,393cyclictest0-21swapper/800:14:1914
40875819941823,394cyclictest0-21swapper/822:31:1914
40875819941823,394cyclictest0-21swapper/822:31:1914
40875819941822,395cyclictest0-21swapper/820:22:5814
408757499418418,0cyclictest0-21swapper/622:58:3512
40875709941825,392cyclictest0-21swapper/519:46:3611
40875999941725,391cyclictest0-21swapper/1222:12:354
40875969941626,389cyclictest0-21swapper/1121:19:313
40875799941622,393cyclictest0-21swapper/722:52:3513
40875749941625,390cyclictest0-21swapper/600:21:3512
40875749941622,393cyclictest0-21swapper/600:28:3512
40875559941619,395cyclictest0-21swapper/120:00:581
4087599994150,29cyclictest0-21swapper/1219:31:364
40875639941517,396cyclictest0-21swapper/322:46:589
40875749941420,393cyclictest0-21swapper/622:43:3512
40875639941413,398cyclictest0-21swapper/319:56:579
40875749941321,391cyclictest0-21swapper/623:18:3512
40875639941314,397cyclictest0-21swapper/322:28:589
40875639941314,397cyclictest0-21swapper/322:28:589
40876049941212,398cyclictest0-21swapper/1320:52:585
40875669941213,398cyclictest0-21swapper/400:11:2210
40875639941214,397cyclictest0-21swapper/322:54:599
40875639941212,399cyclictest0-21swapper/323:36:579
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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