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2026-06-02 - 08:21
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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 792 highest latencies:
System rack6slot5.osadl.org (updated Tue Jun 02, 2026 00:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
147369988124819,3990cyclictest31832-21kworker/0:119:12:370
147369973933944,3398cyclictest31832-21kworker/0:119:18:390
147369969383408,3470cyclictest31832-21kworker/0:119:24:460
147369958763226,2645cyclictest31832-21kworker/0:119:26:210
144442866185,202sleep00-21swapper19:08:140
147369949035,440cyclictest27502-21diskmemload23:33:060
147369948734,439cyclictest31149-21ssh23:45:120
147369948734,439cyclictest16587-21strings23:10:570
147369948733,439cyclictest19129-21strings20:45:430
147369948633,439cyclictest19749-21ssh23:18:470
147369948633,439cyclictest17241-21ssh00:25:570
147369948432,439cyclictest27325-21strings19:40:430
147369948333,436cyclictest5785-21ssh21:33:010
147369946532,372cyclictest16752-21munin-node22:23:240
147369946531,373cyclictest27502-19diskmemload22:06:180
147369946232,360cyclictest24223-21ssh23:29:040
147369945531,364cyclictest14198-21munin-node00:21:170
147369944653,378cyclictest27502-21diskmemload22:10:120
147369944056,369cyclictest27502-21diskmemload00:04:290
147369944054,324cyclictest27502-21diskmemload23:56:230
147369943732,223cyclictest24746-21strings22:15:590
14736994214,356cyclictest5671-21ntp_offset20:10:240
147369942052,354cyclictest21923-21ssh23:23:330
147369941853,350cyclictest27502-21diskmemload21:51:070
147369941755,301cyclictest27502-21diskmemload00:35:350
147369941652,349cyclictest27502-21diskmemload21:21:130
147369941549,305cyclictest23603-21strings19:30:410
147369941254,287cyclictest27502-21diskmemload23:35:100
147369940955,341cyclictest29263-21sort22:26:060
147369940854,339cyclictest27502-21diskmemload22:57:310
147369940832,361cyclictest27502-21diskmemload22:51:300
147369940824,370cyclictest11-21ksoftirqd/021:46:530
147369940733,359cyclictest10380-21ssh21:44:000
147369940634,358cyclictest15173-21ssh23:07:440
147369940534,357cyclictest9200-21ssh00:07:380
147369940533,358cyclictest11-21ksoftirqd/021:14:370
147369940433,357cyclictest19263-21ssh22:04:260
147369940432,358cyclictest4272-21snmpd20:26:030
147369940354,287cyclictest27502-21diskmemload21:25:110
147369940324,366cyclictest4894-21runrttasks21:36:370
147369940252,290cyclictest27502-21diskmemload23:02:550
147369940250,337cyclictest27502-21diskmemload00:15:290
147369940232,356cyclictest4054-21ssh22:42:130
147369940074,312cyclictest27502-21diskmemload23:43:400
147369940055,284cyclictest9949-21ssh00:10:250
147369940054,331cyclictest7921-21grep20:15:370
147369939932,195cyclictest4272-21snmpd19:35:070
147369939931,355cyclictest12-21rcu_preempt20:34:230
147369939852,286cyclictest27502-21diskmemload23:51:540
147369939835,349cyclictest27502-21diskmemload21:56:400
147369939754,274cyclictest27502-21diskmemload22:33:410
147369939734,312cyclictest902-21jbd2/sda1-822:45:070
147369939733,305cyclictest0-21swapper21:03:360
147369939540,355cyclictest0-21swapper20:03:370
147369939431,363cyclictest0-21swapper19:49:230
147369939352,281cyclictest18937-21ssh00:30:320
147369939232,360cyclictest0-21swapper19:57:250
147369938926,123cyclictest4223-21nscd20:35:480
147369938834,340cyclictest30669-21ssh21:15:560
147369938834,340cyclictest1062-21ssh22:35:530
147369938833,355cyclictest0-21swapper20:51:560
147369938522,363cyclictest0-21swapper21:07:450
147369938426,298cyclictest22305-21grep20:55:250
147369938272,250cyclictest4894-21runrttasks20:09:460
147369938135,331cyclictest4272-21snmpd19:50:290
14736993772,314cyclictest10161-21fschecks_time20:20:570
147369935531,87cyclictest16504-21munin-node20:40:540
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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