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2026-08-15 - 09:20
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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 Sat Aug 15, 2026 00:46:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
260429990064744,4260cyclictest15522-21kworker/0:119:12:210
260429988084529,4268cyclictest15522-21kworker/0:119:15:450
256342807186,203sleep00-21swapper19:07:160
26042995421,528cyclictest0-21swapper23:57:120
260429952290,372cyclictest28053-21munin-node22:09:400
260429950924,414cyclictest11355-21switchtime21:20:490
260429949663,372cyclictest6246-21diskmemload22:00:130
260429949036,439cyclictest31835-21ssh00:38:420
260429948937,439cyclictest4345-21sendmail-mta23:18:330
260429948936,440cyclictest9379-21strings23:46:070
260429948936,439cyclictest8029-21ssh23:43:060
260429948936,439cyclictest1587-21ssh23:28:550
260429948664,362cyclictest27404-21ssh00:28:020
260429948554,416cyclictest6246-21diskmemload23:52:510
260429948326,397cyclictest396-21kworker/u2:023:33:230
260429946791,371cyclictest15249-21uptime00:00:300
260429946653,352cyclictest4924-21runrttasks19:28:450
260429945924,420cyclictest16515-21munin-node20:10:160
260429945884,360cyclictest13-21rcuc/021:30:320
260429945446,394cyclictest6246-21diskmemload21:14:160
260429945426,367cyclictest31533-21cstates19:21:060
260429945288,350cyclictest13-21rcuc/023:10:240
260429945154,383cyclictest22795-21ssh21:46:480
26042994502,434cyclictest18809-21ssh22:53:100
260429944924,364cyclictest19003-21kworker/u2:223:00:090
260429944877,358cyclictest13-21rcuc/023:20:230
260429944853,381cyclictest6246-21diskmemload22:12:320
260429944679,355cyclictest351950irq/10-yenta00:24:230
26042994442,428cyclictest4924-21runrttasks00:19:350
26042994441,428cyclictest6246-21diskmemload22:56:060
260429944322,407cyclictest16503-21rm22:47:230
260429944281,347cyclictest351950irq/10-yenta22:37:070
260429944264,365cyclictest13499-21munin-node20:00:390
26042994423,425cyclictest4381-21dhcdbd21:50:290
260429944224,233cyclictest684-21if_err_eth000:41:090
260429944220,408cyclictest6246-21diskmemload21:18:170
26042994422,370cyclictest6246-21diskmemload21:58:140
260429944191,338cyclictest351950irq/10-yenta22:34:460
260429943956,321cyclictest4868-21ssh23:35:510
26042994394,375cyclictest21339-21ssh21:45:040
260429943850,374cyclictest12014-21kworker/u2:200:07:430
260429943669,354cyclictest14022-21fschecks_time22:41:330
260429943253,319cyclictest3956-21ssh22:19:400
260429943248,371cyclictest1725-21seq19:30:170
260429943172,301cyclictest6126-21ssh22:24:260
26042994313,368cyclictest24475-21kworker/u2:100:31:310
260429942953,317cyclictest4305-21snmpd23:08:300
260429942762,88cyclictest31890-21nscd20:20:180
260429942761,306cyclictest12824-21chrt21:25:100
260429942663,80cyclictest17622-21ssh21:35:420
260429942562,350cyclictest9766-21sshd19:50:360
260429941344,354cyclictest6246-21diskmemload00:12:520
260429941052,182cyclictest15713-19udevd20:06:030
260429939452,328cyclictest4305-21snmpd20:30:110
260429939329,364cyclictest0-21swapper20:43:240
260429938826,347cyclictest12282-21seq19:56:270
260429938736,338cyclictest11-21ksoftirqd/021:08:240
26042993872,325cyclictest0-21swapper20:47:590
260429938653,163cyclictest4924-21runrttasks19:42:480
260429937937,342cyclictest0-21swapper22:28:560
260429937537,279cyclictest22923-21munin-node20:25:490
260429937454,261cyclictest776-21ntp_states20:55:180
260429937333,281cyclictest4924-21runrttasks20:36:110
260429937121,290cyclictest4924-21runrttasks19:48:150
260429937020,291cyclictest2746-21cpuspeed_turbos21:00:220
26042993701,356cyclictest0-21swapper20:54:480
26042993701,355cyclictest0-21swapper19:36:490
260429936552,129cyclictest19739-21apt-get20:17:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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