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2026-03-24 - 00:11
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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
Characteristics of the highest latencies:
System rack6slot6 (updated Mon Mar 23, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2016899210059105378,104679cyclictest5188-21ssh12:24:130
201689910675153413,53272cyclictest0-21swapper11:21:150
201689910660653466,53140cyclictest0-21swapper08:19:230
201689910659153479,53112cyclictest0-21swapper08:51:420
201689910659053415,53175cyclictest0-21swapper08:25:550
201689910655053386,53098cyclictest0-21swapper12:04:070
201689910654453387,53064cyclictest0-21swapper07:34:000
201689910654153401,53140cyclictest0-21swapper07:52:550
201689910653353371,53098cyclictest9-21ksoftirqd/010:03:130
201689910652553452,53073cyclictest0-21swapper10:56:280
201689910652153476,53045cyclictest0-21swapper11:19:040
201689910651353471,53042cyclictest0-21swapper10:39:430
201689910650653475,53031cyclictest0-21swapper12:25:030
201689910650353474,53029cyclictest0-21swapper09:28:230
201689910649153468,53023cyclictest0-21swapper12:10:490
201689910647953457,53022cyclictest0-21swapper08:01:580
201689910647253413,53059cyclictest0-21swapper12:37:270
201689910646053408,53052cyclictest0-21swapper12:07:080
201689910645053443,53007cyclictest0-21swapper10:45:350
201689910644753401,53046cyclictest0-21swapper10:22:480
201689910644453400,53044cyclictest0-21swapper09:58:310
201689910644353448,52995cyclictest0-21swapper09:38:460
201689910643853436,53002cyclictest0-21swapper11:52:140
201689910643453437,52997cyclictest0-21swapper07:46:130
201689910632853429,52835cyclictest4389-21kworker/0:209:09:570
201689910629153390,52809cyclictest0-21swapper07:23:060
201689910626653377,52797cyclictest0-21swapper07:40:520
201689910625953387,52807cyclictest0-21swapper11:29:580
201689910624653398,52848cyclictest0-21swapper09:20:400
201689910622553476,52749cyclictest0-21swapper07:19:350
201689910620453431,52773cyclictest0-21swapper11:55:050
201689910618553459,52726cyclictest0-21swapper09:03:350
201689910617153452,52719cyclictest0-21swapper09:30:030
201689910616753446,52721cyclictest0-21swapper08:14:510
201689910616753445,52722cyclictest0-21swapper08:06:090
201689910615653395,52761cyclictest0-21swapper07:27:180
201689910615153442,52709cyclictest0-21swapper07:39:510
201689910613553444,52691cyclictest0-21swapper12:15:110
201689910613153433,52698cyclictest0-21swapper07:10:030
201689910612953427,52702cyclictest0-21swapper08:49:110
201689910592653370,52556cyclictest0-21swapper08:21:130
201689910513852937,52199cyclictest2494-21ssh10:42:140
20168995367253393,184cyclictest14514-21sh11:49:430
20168995357953428,151cyclictest0-21swapper08:34:070
2016899535158,53507cyclictest0-21swapper11:41:210
20168995350727,0cyclictest0-21swapper09:53:400
20168995333925,53314cyclictest0-21swapper10:53:170
2016899533295,0cyclictest0-21swapper09:44:470
20168995322127,0cyclictest0-21swapper08:41:390
20168995301740,52977cyclictest0-21swapper11:35:290
20168995282626,52759cyclictest0-21swapper07:55:460
20168995278227,52755cyclictest0-21swapper10:28:400
201689923091049,1165cyclictest9-21ksoftirqd/011:31:580
201689922561041,1117cyclictest5016-21diskmemload09:16:090
201689920691025,1010cyclictest0-21swapper10:34:210
20168992064996,1031cyclictest2099-21runrttasks10:08:440
201689920611002,1023cyclictest0-21swapper09:12:280
20168992027996,1031cyclictest0-21swapper10:10:350
201689919551090,772cyclictest134850irq/9-eth008:58:340
20168991791924,832cyclictest0-21swapper11:12:120
201689917021031,547cyclictest18724-21ssh11:06:010
201689916661059,607cyclictest0-21swapper10:17:470
201689916631068,595cyclictest0-21swapper09:47:580
201689915141002,418cyclictest0-21swapper12:34:460
201689915021009,427cyclictest0-21swapper08:35:570
201689914921095,361cyclictest0-21swapper11:03:500
1874526118,308sleep018147-21munin-node07:05:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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