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2026-09-10 - 18:32
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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 Sep 10, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2287599103995301,5094cyclictest20327-21kworker/0:209:54:470
228759992484846,4392cyclictest3311-21kworker/0:207:19:340
228759991644579,4571cyclictest11806-21kworker/0:010:35:270
228759991554796,4349cyclictest3311-21kworker/0:207:33:480
228759991094673,4426cyclictest565-21kworker/0:008:08:200
228759989104651,4229cyclictest2903-21kworker/0:010:20:470
228759988754418,4444cyclictest14444-21kworker/0:108:31:150
228759988574554,4300cyclictest14444-21kworker/0:109:08:220
228759986374331,4292cyclictest25234-21kworker/0:011:09:090
228759985174236,4230cyclictest14444-21kworker/0:108:13:540
228759984544346,4098cyclictest3311-21kworker/0:207:28:380
228759982954118,4127cyclictest14444-21kworker/0:108:22:500
228759980484207,3827cyclictest3311-21kworker/0:207:14:090
228759980214405,3602cyclictest30012-21kworker/0:010:06:300
228759979073912,3945cyclictest14444-21kworker/0:108:54:280
228759977994270,3478cyclictest3311-21kworker/0:207:22:240
228759976734095,3547cyclictest5914-21kworker/0:009:18:580
228759974984036,3448cyclictest14686-21kworker/0:109:41:410
228759974563939,3503cyclictest14444-21kworker/0:108:16:250
228759973663978,3374cyclictest14444-21kworker/0:108:59:090
228759970813727,3340cyclictest11806-21kworker/0:010:33:310
228759970783810,3217cyclictest11587-21kworker/0:009:27:010
228759969173676,3230cyclictest14444-21kworker/0:108:48:240
228759968073782,2975cyclictest565-21kworker/0:007:51:130
228759966953608,3012cyclictest2903-21kworker/0:010:18:060
228759966353491,3093cyclictest16886-21kworker/0:010:48:240
228759965973617,2970cyclictest565-21kworker/0:007:59:330
228759965343446,3038cyclictest565-21kworker/0:007:37:590
228759965333552,2967cyclictest565-21kworker/0:007:44:040
228759962223238,2942cyclictest14686-21kworker/0:109:38:260
228759960993260,2825cyclictest16886-21kworker/0:010:50:180
228759960733090,2933cyclictest30012-21kworker/0:010:04:210
228759959633251,2670cyclictest14444-21kworker/0:108:38:480
228759952722854,2414cyclictest565-21kworker/0:007:45:390
228759949312587,2340cyclictest14444-21kworker/0:108:40:230
226472746184,202sleep00-21swapper07:08:460
228759974346,636cyclictest11528-31copy08:04:350
228759948439,385cyclictest8675-21sh10:25:480
228759944718,0cyclictest11-21ksoftirqd/011:16:530
228759943861,364cyclictest11-21ksoftirqd/009:13:330
228759943056,313cyclictest22388-21ssh12:07:000
228759942124,383cyclictest4924-21runrttasks11:45:360
228759941438,362cyclictest18395-21seq11:58:570
228759941156,341cyclictest3733-21diskmemload09:34:450
228759941035,375cyclictest0-21swapper10:12:430
228759940855,340cyclictest3733-21diskmemload11:51:200
228759940527,308cyclictest24358-21latency_hist11:00:070
228759940527,142cyclictest2611-21python12:36:160
228759939719,317cyclictest6525-21cut11:31:110
228759939651,286cyclictest1152-21ssh12:33:270
228759939550,284cyclictest29841-21ssh12:25:260
228759939335,300cyclictest3733-21diskmemload11:23:430
228759939235,296cyclictest19724-21sed12:01:120
228759939046,284cyclictest13996-21kworker/u2:112:25:050
228759939021,309cyclictest21123-21munin-node09:45:110
228759938935,293cyclictest3733-21diskmemload11:36:060
228759938837,293cyclictest0-21swapper11:00:110
228759938834,341cyclictest3733-21diskmemload12:17:550
228759938834,340cyclictest3733-21diskmemload11:30:060
228759938832,295cyclictest15607-21rt-features10:40:400
228759938822,306cyclictest24860-21sshd12:13:250
228759938532,294cyclictest3733-21diskmemload09:22:300
228759937940,279cyclictest4224-21lldpd08:26:580
228759937932,288cyclictest2887-21kworker/u2:011:42:090
228759937331,342cyclictest0-21swapper09:56:060
228759937331,342cyclictest0-21swapper09:04:470
228759936027,157cyclictest25357-21kworker/u2:011:12:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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