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2026-07-19 - 07:43
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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 Sun Jul 19, 2026 00:43:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
41119999285206,4712cyclictest18963-21kworker/0:119:15:460
41119977933924,3855cyclictest18963-21kworker/0:119:14:070
41119966053559,3036cyclictest18963-21kworker/0:119:21:080
39002836184,203sleep00-21swapper19:08:590
41119951967,96cyclictest22472-21hddtemp_smartct21:21:180
41119949136,440cyclictest19772-21ssh23:43:540
41119949057,372cyclictest28013-21ntp_states21:35:220
41119948935,440cyclictest18742-21ssh21:13:240
41119948834,441cyclictest6325-21seq23:12:160
41119946740,366cyclictest16860-21diskmemload23:21:520
41119945872,202cyclictest0-21swapper23:58:100
41119945726,370cyclictest4285-21lldpd00:37:550
41119945528,358cyclictest4924-21runrttasks20:50:050
41119945181,187cyclictest1891-21ssh23:02:350
41119944676,187cyclictest25304-21ssh21:28:350
41119944463,367cyclictest0-21swapper21:04:450
41119944155,373cyclictest0-21swapper20:34:020
41119944065,362cyclictest0-21swapper19:26:520
41119943952,374cyclictest0-21swapper20:59:550
41119943855,210cyclictest11-21ksoftirqd/000:10:500
41119943567,87cyclictest24019-21ssh22:40:080
41119943553,87cyclictest10347-21ssh22:07:500
41119943361,358cyclictest0-21swapper00:29:050
41119943360,359cyclictest30565-21ssh22:55:100
41119943260,359cyclictest28549-21ssh00:04:040
41119943167,179cyclictest20800-21runrttasks23:45:470
41119943061,195cyclictest0-21swapper21:33:130
41119942852,363cyclictest0-21swapper19:54:280
41119942851,363cyclictest0-21swapper20:19:220
41119942850,213cyclictest0-21swapper20:11:170
41119942775,339cyclictest12703-21ssh22:13:450
41119942768,300cyclictest27959-21ssh22:48:270
41119942766,178cyclictest1483-21ssh21:47:550
41119942752,87cyclictest31530-21strings20:20:410
41119942365,184cyclictest8403-21ssh22:04:030
41119942364,177cyclictest17153-21ssh23:36:440
41119942361,303cyclictest0-21swapper22:38:050
41119941957,303cyclictest0-21swapper22:34:580
41119941457,296cyclictest14691-21sshd23:31:250
41119941452,303cyclictest0-21swapper22:52:300
41119941451,303cyclictest0-21swapper20:35:120
41119941260,339cyclictest16947-21ssh22:23:050
41119940756,338cyclictest351950irq/10-yenta23:07:100
41119940331,349cyclictest4305-21snmpd21:42:000
41119939932,367cyclictest19871-21ssh21:15:500
41119939836,339cyclictest18738-21grep19:45:530
41119939632,351cyclictest16860-21diskmemload23:17:230
41119939432,362cyclictest16860-21diskmemload23:51:480
41119939333,360cyclictest0-21swapper19:32:380
41119939032,358cyclictest19150-21chrt22:28:110
41119939032,344cyclictest3047-21ssh00:20:200
41119938936,339cyclictest4924-21runrttasks19:41:340
41119938734,340cyclictest4924-21runrttasks20:44:210
41119938733,205cyclictest16860-21diskmemload00:15:190
41119938712,192cyclictest4285-21lldpd22:16:530
41119938632,340cyclictest16860-21diskmemload21:56:550
41119938532,340cyclictest16860-21diskmemload21:51:040
41119938433,340cyclictest12198-21ssh23:25:590
41119938135,346cyclictest0-21swapper00:07:170
41119938035,345cyclictest0-21swapper20:49:270
41119937932,286cyclictest21784-21ntpq19:55:240
41119937622,354cyclictest0-21swapper19:35:140
41119937536,279cyclictest4224-21lldpd20:08:330
4111993749,341cyclictest540-21df_inode20:25:260
41119937334,280cyclictest4924-21runrttasks20:01:300
41119936737,153cyclictest4924-21runrttasks21:08:560
41119935728,153cyclictest8872-21ssh00:31:540
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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