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2026-08-14 - 15:23
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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 Fri Aug 14, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28618559955837,520cyclictest0-21swapper/322:19:229
286184799540538,2cyclictest2954878-21kworker/1:1+i915-unordered21:07:221
28618979952131,489cyclictest0-21swapper/1320:24:225
28618479950218,483cyclictest0-21swapper/121:19:221
28618559949926,58cyclictest0-21swapper/321:23:229
2861847994954,490cyclictest0-21swapper/122:01:221
28618429949414,479cyclictest0-21swapper/021:07:220
286187699488486,2cyclictest0-21swapper/923:34:2215
2861842994830,23cyclictest0-21swapper/022:01:220
28618629948012,467cyclictest0-21swapper/522:36:2211
2861842994780,476cyclictest0-21swapper/023:34:220
28618979947525,30cyclictest0-21swapper/1320:55:175
286185599474474,0cyclictest0-21swapper/300:34:229
28618769947224,30cyclictest0-21swapper/921:37:0515
28618769947224,30cyclictest0-21swapper/921:37:0515
28618769947224,29cyclictest0-21swapper/900:18:0515
28618769947224,29cyclictest0-21swapper/900:18:0515
28618979947149,421cyclictest0-21swapper/1320:25:445
28618559946522,29cyclictest0-21swapper/320:36:229
286186999464462,2cyclictest3075731-21kworker/7:1+i915-unordered23:31:2213
28618979946140,420cyclictest1411ktimers/1321:47:065
28618429946116,29cyclictest0-21swapper/023:54:450
28618769946015,30cyclictest0-21swapper/919:45:1815
28618479946013,446cyclictest34-21ksoftirqd/123:24:221
286187499457456,1cyclictest69750irq/159-i91500:24:2214
286187499457456,1cyclictest69750irq/159-i91500:24:2214
2861884994568,30cyclictest0-21swapper/1120:39:453
2861879994550,27cyclictest0-21swapper/1000:29:222
286187699454454,0cyclictest2987038-21kworker/9:1+i915-unordered22:01:2215
286187499450449,1cyclictest69750irq/159-i91522:12:2214
2861855994470,446cyclictest0-21swapper/320:40:439
28618979944625,420cyclictest0-21swapper/1321:37:455
28618979944625,420cyclictest0-21swapper/1321:37:455
2861879994460,27cyclictest0-21swapper/1021:13:072
286186999446442,4cyclictest1818-21snmpd23:18:5713
28618799944424,418cyclictest0-21swapper/1023:14:442
28618669944424,419cyclictest0-21swapper/623:01:0612
28618669944424,419cyclictest0-21swapper/619:43:4512
28618669944423,420cyclictest0-21swapper/622:14:0612
28618669944423,420cyclictest0-21swapper/619:47:4512
28618979944326,416cyclictest0-21swapper/1321:30:045
28618979944326,416cyclictest0-21swapper/1321:30:045
28618979944322,420cyclictest0-21swapper/1321:54:455
28618669944317,424cyclictest0-21swapper/623:23:0512
286190399442441,1cyclictest0-21swapper/1523:18:577
28618769944226,415cyclictest0-21swapper/919:59:2215
286185599442442,0cyclictest0-21swapper/323:04:439
286184299442440,2cyclictest0-21swapper/000:24:220
286184299442440,2cyclictest0-21swapper/000:24:220
28618979944119,421cyclictest0-21swapper/1319:52:435
28618769944124,417cyclictest0-21swapper/923:21:0815
28618559944122,418cyclictest0-21swapper/322:57:459
28618559944120,30cyclictest0-21swapper/321:58:229
28618979944022,417cyclictest0-21swapper/1320:16:445
28618849944017,419cyclictest0-21swapper/1121:32:453
28618849944017,419cyclictest0-21swapper/1121:32:453
28618799944020,418cyclictest0-21swapper/1019:48:072
28618669944021,418cyclictest0-21swapper/620:17:0412
28618979943926,412cyclictest0-21swapper/1319:16:075
286187699439437,2cyclictest0-21swapper/921:07:2215
28618669943919,419cyclictest0-21swapper/623:16:0612
28618669943919,419cyclictest0-21swapper/620:23:4312
28618799943819,417cyclictest0-21swapper/1023:10:042
2861855994383,28cyclictest0-21swapper/319:19:229
28618559943819,418cyclictest0-21swapper/323:19:079
28618849943717,418cyclictest0-21swapper/1123:45:453
28618849943716,418cyclictest0-21swapper/1119:29:443
28618849943715,420cyclictest0-21swapper/1100:32:073
28618849943615,420cyclictest0-21swapper/1120:58:073
286187499436434,1cyclictest3127941-21kworker/8:0+i915-unordered00:34:4514
28618479943614,29cyclictest0-21swapper/119:06:221
28618999943522,412cyclictest0-21swapper/1420:20:176
28618979943514,418cyclictest0-21swapper/1320:14:445
286188499435433,2cyclictest0-21swapper/1123:08:153
28618849943516,417cyclictest0-21swapper/1120:52:453
28618849943515,418cyclictest0-21swapper/1122:02:053
28618849943514,420cyclictest0-21swapper/1120:06:073
28618849943514,419cyclictest0-21swapper/1123:58:063
286187999435434,1cyclictest0-21swapper/1000:24:072
286187999435434,1cyclictest0-21swapper/1000:24:072
28618669943517,416cyclictest0-21swapper/622:47:0512
28618629943520,415cyclictest0-21swapper/519:51:2211
28618559943515,419cyclictest0-21swapper/322:49:059
28618979943414,418cyclictest0-21swapper/1321:59:435
28618479943416,417cyclictest0-21swapper/120:58:221
286184299434432,2cyclictest0-21swapper/022:12:220
28618799943314,418cyclictest0-21swapper/1021:26:052
28618799943314,418cyclictest0-21swapper/1021:26:052
28618799943312,420cyclictest0-21swapper/1023:51:442
28618799943311,421cyclictest0-21swapper/1023:45:042
28618769943325,407cyclictest0-21swapper/923:27:2215
28618479943314,418cyclictest0-21swapper/121:24:221
286190399432431,1cyclictest0-21swapper/1523:31:227
28618979943212,418cyclictest0-21swapper/1322:09:455
286189299432431,0cyclictest2930824-21kworker/12:2+i915-unordered20:41:224
28618849943210,421cyclictest0-21swapper/1119:52:043
286187499432431,1cyclictest69750irq/159-i91521:34:2214
286187499432431,1cyclictest69750irq/159-i91521:34:2214
286187499432430,1cyclictest69750irq/159-i91521:47:2214
28618979943112,417cyclictest0-21swapper/1320:32:075
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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