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2026-08-14 - 04:13
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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
Characteristics of the highest latencies:
System rack6slot5.osadl.org (updated Fri Aug 14, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
61099979644034,3917cyclictest22260-21kworker/0:219:14:300
61099970153766,3238cyclictest22260-21kworker/0:219:16:060
57682835183,204sleep00-21swapper19:08:170
61099950153,435cyclictest8569-21ssh00:22:310
61099949831,467cyclictest0-21swapper00:19:140
61099946930,369cyclictest4305-21snmpd23:10:110
61099946529,376cyclictest23173-21kworker/u2:323:46:340
61099946332,371cyclictest2434-21sshd22:56:270
61099945866,264cyclictest0-21swapper20:29:090
61099945624,418cyclictest12680-21ssh22:06:490
61099945117,364cyclictest18815-21diskmemload00:09:060
61099945067,271cyclictest0-21swapper23:58:390
61099944768,365cyclictest0-21swapper20:35:500
61099943967,359cyclictest0-21swapper00:03:380
61099943866,188cyclictest0-21swapper21:19:490
61099942968,302cyclictest0-21swapper00:29:500
61099942866,178cyclictest0-21swapper21:20:080
61099942664,178cyclictest0-21swapper22:33:580
61099942568,177cyclictest11-21ksoftirqd/022:12:270
61099942566,177cyclictest1349-21ssh21:41:440
61099942267,355cyclictest0-21swapper21:59:470
61099941331,369cyclictest14650-21latency00:36:050
61099941318,335cyclictest0-21swapper19:31:230
61099941033,363cyclictest18815-21diskmemload22:21:270
61099940827,199cyclictest26168-21sshd23:50:270
61099940731,376cyclictest29618-21ssh21:33:100
61099940531,359cyclictest18815-21diskmemload22:18:590
61099940234,368cyclictest19972-21ssh21:11:140
61099940031,259cyclictest18815-21diskmemload23:00:590
61099940018,368cyclictest26546-21ssh22:38:590
61099939952,347cyclictest0-21swapper23:36:410
61099939927,358cyclictest18815-21diskmemload21:49:190
61099939632,360cyclictest23493-21rm23:44:440
61099939632,350cyclictest29794-21cpuspeed20:10:430
61099939632,350cyclictest18815-21diskmemload21:36:040
61099939632,350cyclictest1875-21runrttasks20:24:150
61099939625,358cyclictest0-21swapper22:53:120
61099939530,351cyclictest16112-21ssh23:26:330
61099939438,356cyclictest0-21swapper20:41:030
61099939334,349cyclictest28956-21ssh22:44:430
61099939331,348cyclictest12273-21ssh00:30:550
61099939225,367cyclictest12910-21nfs_client19:25:360
61099939132,186cyclictest351950irq/10-yenta00:12:100
61099938831,357cyclictest0-21swapper23:32:000
61099938734,340cyclictest18815-21diskmemload22:47:240
61099938734,339cyclictest18815-21diskmemload23:23:090
61099938716,357cyclictest3455-21dbus-daemon21:08:200
61099938533,340cyclictest18815-21diskmemload23:08:430
61099938531,343cyclictest20494-21kworker/0:221:27:410
61099938519,91cyclictest4120-21syslogd22:30:010
61099938418,352cyclictest12129-21seq19:25:010
61099938254,268cyclictest147362chrt20:57:000
61099938131,336cyclictest12911-21chrt20:52:140
61099938032,163cyclictest28175-21fschecks_time20:05:520
61099937924,355cyclictest0-21swapper19:40:360
61099937828,339cyclictest351950irq/10-yenta23:18:500
61099937631,345cyclictest0-21swapper21:52:340
61099937444,270cyclictest4030-21munin-node20:30:380
61099937431,283cyclictest4924-21runrttasks20:45:270
61099937240,271cyclictest27050-21latency_hist20:05:030
61099936236,267cyclictest22260-21kworker/0:220:19:420
61099935734,89cyclictest15422-21munin-node21:00:180
61099935332,80cyclictest22864-21chrt19:51:360
61099935268,271cyclictest0-21swapper22:03:450
61099935167,271cyclictest0-21swapper19:56:230
61099935123,268cyclictest21408-21latency_hist19:50:010
61099933966,214cyclictest0-21swapper19:39:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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