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2026-05-21 - 21:24
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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 Thu May 21, 2026 12:43:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
302199990844643,4430cyclictest19574-21kworker/0:007:15:510
302199989194661,4247cyclictest19574-21kworker/0:007:20:400
302199988894659,4227cyclictest19574-21kworker/0:007:12:320
302199983024448,3842cyclictest17499-21kworker/0:208:29:050
302199976153878,3722cyclictest12411-21kworker/0:009:40:430
302199973013920,3367cyclictest17499-21kworker/0:209:08:000
302199971813496,3519cyclictest17499-21kworker/0:208:48:390
302199970193715,3300cyclictest17499-21kworker/0:208:39:400
302199969513715,3185cyclictest17499-21kworker/0:209:04:050
302199966843485,3138cyclictest12411-21kworker/0:009:38:000
302199966313395,3213cyclictest17499-21kworker/0:208:52:410
302199964693418,3036cyclictest19574-21kworker/0:007:32:460
302199960663293,2722cyclictest19574-21kworker/0:007:29:090
298012718183,203sleep00-21swapper07:07:090
30219994894,414cyclictest26108-21runrttasks08:21:340
302199948834,439cyclictest22551-21ssh10:46:580
302199948833,440cyclictest11005-21diskmemload09:34:180
302199948734,439cyclictest29671-21ssh11:04:310
302199948734,438cyclictest11005-21diskmemload10:15:570
302199948633,439cyclictest14160-21ssh09:15:560
302199948632,440cyclictest30989-21ssh09:53:370
302199948432,439cyclictest17305-21ssh11:50:000
302199946234,358cyclictest544-21ssh11:11:040
302199946131,360cyclictest18337-21ssh10:38:010
302199945746,226cyclictest17006-21kworker/u2:009:25:200
302199945631,365cyclictest11-21ksoftirqd/007:44:480
302199945531,363cyclictest32619-21ssh12:24:390
30219994372,365cyclictest11005-21diskmemload11:08:100
30219994353,417cyclictest21731-21sendmail12:00:010
302199942554,310cyclictest21044-21ssh10:45:050
302199941754,348cyclictest11005-21diskmemload11:17:030
302199941754,348cyclictest11005-21diskmemload10:31:050
302199941753,209cyclictest11005-21diskmemload12:18:240
302199941555,300cyclictest11005-21diskmemload10:51:130
302199941460,294cyclictest12-21rcu_preempt12:00:280
302199941449,349cyclictest11005-21diskmemload11:42:470
302199941253,121cyclictest11252-21perl10:21:240
302199941136,361cyclictest5130-21ssh10:07:590
302199941053,288cyclictest11005-21diskmemload11:37:120
302199941052,343cyclictest11005-21diskmemload11:23:000
302199940954,341cyclictest2295-21ssh12:29:160
302199940654,338cyclictest11005-21diskmemload09:55:520
302199940654,291cyclictest11005-21diskmemload12:30:190
302199940653,294cyclictest11005-21diskmemload11:51:100
302199940653,293cyclictest11005-21diskmemload12:37:220
302199940632,360cyclictest25677-21ssh12:07:510
302199940555,290cyclictest11005-21diskmemload11:27:040
302199940545,346cyclictest345450irq/10-yenta09:48:520
302199940532,359cyclictest25850-21ssh10:55:320
302199940453,290cyclictest11005-21diskmemload10:10:140
302199940431,358cyclictest11005-21diskmemload09:20:170
302199940356,287cyclictest11005-21diskmemload11:31:300
302199940353,279cyclictest17497-21ntp_offset08:00:240
302199940328,136cyclictest8025-21sed07:35:170
302199940131,355cyclictest2178-21smart_sda10:01:130
302199939854,274cyclictest11005-21diskmemload09:12:190
302199939726,90cyclictest18939-21kworker/u2:108:07:020
302199939653,291cyclictest13025-21ssh10:25:500
302199939553,108cyclictest1275-21sshd08:42:530
302199938934,341cyclictest27090-21ssh12:11:010
302199938734,339cyclictest12386-21strings07:45:420
302199938634,339cyclictest21833-21strings08:10:420
302199938623,87cyclictest4894-21runrttasks07:59:090
302199937933,330cyclictest24294-21apt-get08:17:100
302199937133,324cyclictest6553-21fschecks_time08:55:540
302199936531,320cyclictest13455-21munin-node07:51:040
302199935331,251cyclictest29066-21head08:30:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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