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2026-03-27 - 19:34
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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 Mar 27, 2026 12:45:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
112602227149,21sleep00-21swapper/007:05:480
113962214149,51sleep20-21swapper/207:07:342
112392210158,40sleep10-21swapper/107:05:321
114622208172,23sleep30-21swapper/307:08:283
11683991818,0cyclictest35-21ksoftirqd/310:10:143
11683991515,0cyclictest35-21ksoftirqd/311:47:373
11683991414,0cyclictest35-21ksoftirqd/312:13:073
11683991414,0cyclictest35-21ksoftirqd/312:06:573
11683991414,0cyclictest35-21ksoftirqd/310:55:013
11683991414,0cyclictest35-21ksoftirqd/309:40:113
11683991414,0cyclictest35-21ksoftirqd/309:25:103
11683991410,2cyclictest35-21ksoftirqd/310:40:003
11683991313,0cyclictest35-21ksoftirqd/311:50:403
11683991313,0cyclictest35-21ksoftirqd/311:42:243
11683991313,0cyclictest35-21ksoftirqd/311:07:293
11683991313,0cyclictest35-21ksoftirqd/311:04:073
11683991313,0cyclictest35-21ksoftirqd/309:22:133
11683991313,0cyclictest35-21ksoftirqd/307:15:123
11683991312,1cyclictest35-21ksoftirqd/311:16:503
11683991311,1cyclictest35-21ksoftirqd/312:20:003
11682991311,1cyclictest28-21ksoftirqd/208:14:592
1167199130,12cyclictest0-21swapper/011:40:100
11683991212,0cyclictest35-21ksoftirqd/312:40:003
11683991212,0cyclictest35-21ksoftirqd/311:35:013
11683991212,0cyclictest35-21ksoftirqd/310:53:283
11683991212,0cyclictest35-21ksoftirqd/310:30:233
11683991212,0cyclictest35-21ksoftirqd/309:56:283
11683991212,0cyclictest35-21ksoftirqd/309:51:493
11683991212,0cyclictest35-21ksoftirqd/309:51:483
11683991212,0cyclictest35-21ksoftirqd/309:35:183
11683991212,0cyclictest35-21ksoftirqd/309:05:153
11683991211,1cyclictest35-21ksoftirqd/312:35:003
11683991211,1cyclictest35-21ksoftirqd/310:19:593
11683991211,1cyclictest35-21ksoftirqd/309:00:003
11683991211,0cyclictest35-21ksoftirqd/310:21:163
11683991211,0cyclictest35-21ksoftirqd/310:05:013
11683991210,1cyclictest35-21ksoftirqd/309:15:203
11683991210,1cyclictest35-21ksoftirqd/309:00:213
11683991210,1cyclictest35-21ksoftirqd/308:45:003
1167199122,5cyclictest17996-21latency_hist10:50:010
1168399119,1cyclictest35-21ksoftirqd/311:30:173
1168399119,1cyclictest35-21ksoftirqd/310:35:143
1168399119,1cyclictest35-21ksoftirqd/310:25:203
1168399119,1cyclictest35-21ksoftirqd/309:45:143
11683991110,1cyclictest557-21irqbalance07:43:163
11683991110,1cyclictest35-21ksoftirqd/312:25:203
11683991110,1cyclictest35-21ksoftirqd/312:20:143
11683991110,1cyclictest35-21ksoftirqd/312:00:013
11683991110,1cyclictest35-21ksoftirqd/311:25:143
11683991110,1cyclictest35-21ksoftirqd/311:20:143
11683991110,1cyclictest35-21ksoftirqd/311:15:003
11683991110,1cyclictest35-21ksoftirqd/310:50:013
11683991110,1cyclictest35-21ksoftirqd/310:05:193
11683991110,1cyclictest35-21ksoftirqd/309:35:003
11683991110,1cyclictest35-21ksoftirqd/309:15:013
11683991110,1cyclictest35-21ksoftirqd/308:50:013
11683991110,1cyclictest35-21ksoftirqd/308:25:203
11683991110,1cyclictest35-21ksoftirqd/308:20:003
11683991110,1cyclictest35-21ksoftirqd/308:15:003
11683991110,1cyclictest35-21ksoftirqd/308:05:003
11683991110,1cyclictest35-21ksoftirqd/307:55:123
11683991110,1cyclictest35-21ksoftirqd/307:55:113
11683991110,1cyclictest35-21ksoftirqd/307:40:013
11682991110,1cyclictest31167-21/usr/sbin/munin12:30:192
1168299111,1cyclictest0-21swapper/208:45:132
1167199119,1cyclictest9-21ksoftirqd/012:20:010
1167199119,1cyclictest9-21ksoftirqd/011:20:150
1167199119,1cyclictest9-21ksoftirqd/007:25:000
1167199112,4cyclictest31452-21latency_hist07:50:010
11671991110,1cyclictest9-21ksoftirqd/008:39:590
1167199110,8cyclictest28561-21ssh11:45:120
209272100,1sleep10-21swapper/110:52:431
1168399109,1cyclictest35-21ksoftirqd/312:05:003
1168399109,1cyclictest35-21ksoftirqd/308:35:143
1168399109,1cyclictest35-21ksoftirqd/308:30:153
1168399109,1cyclictest35-21ksoftirqd/308:24:593
1168399109,1cyclictest35-21ksoftirqd/308:05:003
1168399109,1cyclictest35-21ksoftirqd/307:50:013
1168399109,1cyclictest35-21ksoftirqd/307:30:133
1168399109,1cyclictest35-21ksoftirqd/307:10:163
1168399108,1cyclictest35-21ksoftirqd/307:45:143
1168399108,1cyclictest35-21ksoftirqd/307:25:153
11682991010,0cyclictest0-21swapper/210:25:152
1167599100,9cyclictest0-21swapper/109:38:321
1167199109,1cyclictest9-21ksoftirqd/008:20:180
1167199109,0cyclictest9-21ksoftirqd/010:50:130
1167199108,1cyclictest9-21ksoftirqd/010:25:130
1167199104,5cyclictest27148-21perf10:19:590
1167199101,8cyclictest26930-21/usr/sbin/munin07:40:140
3736290,0sleep00-21swapper/009:49:220
116839998,1cyclictest35-21ksoftirqd/307:20:113
116839997,1cyclictest35-21ksoftirqd/308:50:133
116829991,6cyclictest693-21runrttasks10:47:132
116829990,9cyclictest0-21swapper/212:07:572
116759990,5cyclictest0-21swapper/111:20:011
116719998,1cyclictest9-21ksoftirqd/012:00:140
116719998,1cyclictest9-21ksoftirqd/010:10:200
116719998,1cyclictest9-21ksoftirqd/009:20:130
116719998,1cyclictest9-21ksoftirqd/007:15:000
116719997,1cyclictest9-21ksoftirqd/011:05:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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