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2025-12-05 - 18:53
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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 100 highest latencies:
System rack1slot1.osadl.org (updated Fri Dec 05, 2025 12:45:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
304032209151,44sleep20-21swapper/207:08:112
302322209158,25sleep00-21swapper/007:05:560
301632204172,21sleep30-21swapper/307:05:043
302282203161,29sleep10-21swapper/107:05:531
171352600,0sleep20-21swapper/209:37:462
55022580,0sleep121-21ksoftirqd/111:35:281
151702190,0sleep10-21swapper/109:35:121
181672150,0sleep20-21swapper/210:25:052
30661991311,1cyclictest28-21ksoftirqd/207:30:002
30644991312,1cyclictest9-21ksoftirqd/012:15:000
30661991210,1cyclictest28-21ksoftirqd/211:00:002
30661991210,1cyclictest28-21ksoftirqd/208:05:002
3066199120,12cyclictest0-21swapper/210:15:112
3066199120,12cyclictest0-21swapper/210:15:102
30644991211,1cyclictest9-21ksoftirqd/010:00:000
30644991210,1cyclictest9-21ksoftirqd/011:25:000
3064499120,11cyclictest7406-21ssh10:55:120
3066199119,1cyclictest28-21ksoftirqd/209:30:222
3064499119,1cyclictest9-21ksoftirqd/012:35:110
3064499119,1cyclictest9-21ksoftirqd/010:45:160
3064499119,1cyclictest9-21ksoftirqd/007:45:000
3064499119,1cyclictest9-21ksoftirqd/007:15:010
3064499119,1cyclictest9-21ksoftirqd/007:15:010
3064499112,4cyclictest21713-21perf09:45:000
30644991110,1cyclictest9-21ksoftirqd/012:10:000
92482100,0sleep10-21swapper/111:41:071
3067399108,1cyclictest35-21ksoftirqd/311:05:143
3067399108,1cyclictest35-21ksoftirqd/307:15:013
3067399108,1cyclictest35-21ksoftirqd/307:15:013
3066199109,1cyclictest28-21ksoftirqd/211:05:162
3064499109,1cyclictest9-21ksoftirqd/011:05:140
3064499109,1cyclictest9-21ksoftirqd/010:41:430
3064499109,1cyclictest535-21kworker/0:211:26:580
3064499108,1cyclictest9-21ksoftirqd/010:00:230
3064499102,4cyclictest21525-21munin-run11:15:000
3064499102,4cyclictest13538-21apt-get08:10:010
3064499101,4cyclictest6785-21latency_hist12:25:000
3064499100,3cyclictest0-21swapper/012:29:090
306739999,0cyclictest35-21ksoftirqd/311:32:063
306739999,0cyclictest35-21ksoftirqd/311:32:063
306739998,1cyclictest35-21ksoftirqd/308:10:013
306739996,1cyclictest0-21swapper/310:35:303
306739990,8cyclictest0-21swapper/310:56:033
306619990,6cyclictest28199-21diskmemload10:40:102
306569999,0cyclictest0-21swapper/112:19:441
306569990,4cyclictest0-21swapper/111:28:301
306449999,0cyclictest9-21ksoftirqd/012:05:000
306449999,0cyclictest9-21ksoftirqd/009:35:140
306449998,1cyclictest9-21ksoftirqd/012:15:140
306449998,1cyclictest9-21ksoftirqd/011:20:000
306449998,1cyclictest9-21ksoftirqd/010:25:140
306449998,1cyclictest9-21ksoftirqd/010:10:000
306449998,1cyclictest9-21ksoftirqd/009:30:000
306449997,1cyclictest9-21ksoftirqd/011:55:000
306449997,1cyclictest9-21ksoftirqd/008:34:590
306449997,1cyclictest9-21ksoftirqd/008:00:000
306449991,4cyclictest21314-21perf12:00:000
306449990,5cyclictest254-21systemd-journal09:49:550
306739987,1cyclictest35-21ksoftirqd/310:35:003
306739981,5cyclictest0-21swapper/309:26:043
306739981,1cyclictest0-21swapper/310:05:123
306739980,5cyclictest18466-21/usr/sbin/munin11:55:143
306739980,5cyclictest1449-21ntpd11:47:233
306739980,4cyclictest557-21nscd11:24:253
306739980,3cyclictest0-21swapper/310:50:123
306619988,0cyclictest28-21ksoftirqd/211:10:142
306619987,1cyclictest28-21ksoftirqd/210:01:332
306619987,1cyclictest28-21ksoftirqd/207:40:002
306619980,7cyclictest546-21irqbalance11:45:262
306619980,0cyclictest0-21swapper/212:36:482
306569988,0cyclictest21-21ksoftirqd/108:02:531
306449987,1cyclictest9-21ksoftirqd/011:40:200
306449987,1cyclictest9-21ksoftirqd/010:35:200
306449987,1cyclictest9-21ksoftirqd/010:15:020
306449987,1cyclictest9-21ksoftirqd/010:15:020
306449987,1cyclictest9-21ksoftirqd/009:10:100
306449986,1cyclictest9-21ksoftirqd/007:34:130
306449985,1cyclictest16734-21dump-pmu-power08:20:000
306449985,1cyclictest16734-21dump-pmu-power08:20:000
306449984,2cyclictest254-21systemd-journal08:45:000
306449981,6cyclictest0-21swapper/012:30:130
306449981,3cyclictest3446-21perf11:35:000
306449981,3cyclictest3446-21perf11:35:000
306449980,7cyclictest13956-21ssh09:34:160
306449980,1cyclictest5971-21ssh10:51:290
306449980,1cyclictest16844-21ssh10:21:390
28398280,0sleep328199-21diskmemload09:53:543
306739977,0cyclictest35-21ksoftirqd/310:15:123
306739977,0cyclictest35-21ksoftirqd/310:15:123
306739976,1cyclictest35-21ksoftirqd/311:55:003
306739976,1cyclictest35-21ksoftirqd/308:40:003
306739976,1cyclictest35-21ksoftirqd/308:30:013
306739975,1cyclictest35-21ksoftirqd/308:20:003
306739975,1cyclictest35-21ksoftirqd/308:20:003
306739975,1cyclictest25972-21ntpq08:55:163
306739975,1cyclictest20811-21ssh09:42:193
306739973,2cyclictest35-21ksoftirqd/309:18:193
306739972,2cyclictest520-21grep07:15:003
306739970,6cyclictest0-21swapper/308:47:103
306739970,4cyclictest557-21nscd10:00:153
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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