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2026-03-29 - 22:33
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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 Sun Mar 29, 2026 12:45:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
253782215160,44sleep00-21swapper/007:09:200
251022210150,48sleep30-21swapper/307:05:453
251052205149,22sleep10-21swapper/107:05:481
252452203157,32sleep20-21swapper/207:07:382
275732610,0sleep00-21swapper/008:20:010
125522170,0sleep00-21swapper/010:24:000
2552999160,1cyclictest15379-21ssh11:10:123
2552999140,1cyclictest4799-21ssh11:37:413
2552999140,1cyclictest19530-21df09:10:143
2552999140,1cyclictest19530-21df09:10:143
2552999140,1cyclictest18138-21grep12:35:203
2552999132,10cyclictest18760-21diskmemload11:21:523
2552999132,10cyclictest18760-21diskmemload10:59:533
2552999130,1cyclictest30532-21ssh09:24:033
2552999130,1cyclictest0-21swapper/310:01:463
25522991311,1cyclictest28-21ksoftirqd/209:00:002
2551699130,13cyclictest0-21swapper/108:50:111
2552999122,9cyclictest19111-21ssh10:31:003
2552999122,9cyclictest18760-21diskmemload10:51:333
2552999121,1cyclictest0-21swapper/311:53:133
2552999120,2cyclictest15176-21munin-run07:55:003
2552999120,11cyclictest0-21swapper/311:09:563
2552999120,1cyclictest31863-21/usr/sbin/munin11:30:183
2552999120,1cyclictest27792-21ssh12:06:223
2552999120,1cyclictest27650-21kworker/u8:012:17:173
2552999120,1cyclictest17799-21ntp_states09:05:183
2552999120,1cyclictest10001-21ntp_states12:25:193
2552999120,1cyclictest0-21swapper/308:10:163
2552999120,0cyclictest0-21swapper/310:45:143
25502991211,1cyclictest9-21ksoftirqd/012:40:000
28242110,0sleep10-21swapper/109:30:071
2552999117,4cyclictest18760-21diskmemload10:36:343
2552999112,8cyclictest18760-21diskmemload12:04:003
2552999112,8cyclictest18760-21diskmemload09:29:353
2552999110,10cyclictest0-21swapper/311:26:273
2552999110,1cyclictest10429-21chrt07:44:353
2552999110,1cyclictest0-21swapper/311:17:343
2552999110,1cyclictest0-21swapper/309:46:573
2552999110,0cyclictest18760-21diskmemload12:20:123
2552999110,0cyclictest18760-21diskmemload11:02:063
2552999110,0cyclictest18760-21diskmemload10:25:473
2552999110,0cyclictest18760-21diskmemload09:56:103
2552999110,0cyclictest0-21swapper/309:40:153
2552999110,0cyclictest0-21swapper/309:17:273
2552999110,0cyclictest0-21swapper/307:25:113
25502991110,1cyclictest9-21ksoftirqd/012:30:000
25502991110,1cyclictest9-21ksoftirqd/009:25:010
5422100,0sleep20-21swapper/212:14:572
2552999105,4cyclictest6066-21ssh11:40:133
2552999103,6cyclictest28346-21entropy07:15:013
2552999100,10cyclictest0-21swapper/310:23:123
2552999100,1cyclictest6683-21irqstats07:35:183
2552999100,1cyclictest5362-21diskstats08:40:133
2552999100,1cyclictest21303-21sed08:05:183
2552999100,1cyclictest18760-21diskmemload09:53:243
2552999100,1cyclictest0-21swapper/310:19:333
2552999100,1cyclictest0-21swapper/309:35:223
2552999100,0cyclictest18760-21diskmemload10:13:483
2552999100,0cyclictest18760-21diskmemload10:13:483
2552999100,0cyclictest0-21swapper/311:56:093
2552999100,0cyclictest0-21swapper/310:09:073
2552299109,1cyclictest28-21ksoftirqd/212:19:592
2552299108,1cyclictest28-21ksoftirqd/208:54:592
2552299108,1cyclictest28-21ksoftirqd/208:30:002
2552299108,1cyclictest28-21ksoftirqd/207:50:002
2552299102,3cyclictest7735-21aten_r1power_cu11:00:122
2550299109,1cyclictest9-21ksoftirqd/011:40:000
2550299109,1cyclictest9-21ksoftirqd/009:40:140
2550299108,1cyclictest9-21ksoftirqd/010:45:140
2550299108,1cyclictest9-21ksoftirqd/007:55:000
2550299100,9cyclictest0-21swapper/010:40:120
2550299100,8cyclictest11935-1kworker/u9:212:00:160
255299994,4cyclictest5022-21ssh09:31:173
255299990,9cyclictest0-21swapper/310:41:133
255299990,1cyclictest31582-21cstates07:20:133
255299990,1cyclictest31582-21cstates07:20:133
255299990,1cyclictest30015-21diskstats12:10:143
255299990,1cyclictest0-21swapper/312:34:173
255299990,0cyclictest0-21swapper/311:49:453
255299990,0cyclictest0-21swapper/309:00:133
255299990,0cyclictest0-21swapper/307:45:133
255229998,1cyclictest28-21ksoftirqd/209:20:132
255229998,1cyclictest28-21ksoftirqd/209:10:012
255229998,1cyclictest28-21ksoftirqd/208:30:002
255229998,1cyclictest28-21ksoftirqd/207:20:012
255229998,1cyclictest28-21ksoftirqd/207:20:002
255229997,1cyclictest28-21ksoftirqd/211:20:012
255229990,8cyclictest3782-21ssh09:30:162
255229990,4cyclictest240-21systemd-journal08:40:002
255029998,1cyclictest9-21ksoftirqd/007:35:010
255029997,1cyclictest9-21ksoftirqd/009:30:010
255029997,1cyclictest9-21ksoftirqd/007:59:590
255029996,1cyclictest0-21swapper/010:12:260
255029996,1cyclictest0-21swapper/010:12:250
255029990,3cyclictest0-21swapper/008:00:120
255299980,7cyclictest311-21cpuspeed_turbos08:30:143
255299980,7cyclictest28414-21grep08:20:143
255299980,2cyclictest240-21systemd-journal07:33:533
255299980,1cyclictest240-21systemd-journal07:55:003
255229987,1cyclictest15259-21sh10:25:572
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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