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2026-06-07 - 00:58
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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 Sat Jun 06, 2026 12:45:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
252822215149,23sleep20-21swapper/207:06:452
253652201162,25sleep30-21swapper/307:07:513
234262196157,24sleep00-21swapper/007:05:110
253262194157,24sleep10-21swapper/107:07:211
264892720,0sleep20-21swapper/211:29:512
11592580,0sleep10-21swapper/108:30:191
35082180,0sleep10-21swapper/111:40:191
25625991716,1cyclictest28-21ksoftirqd/209:43:482
270652160,1sleep121-21ksoftirqd/109:20:131
25625991311,1cyclictest28-21ksoftirqd/208:25:012
152892130,0sleep20-21swapper/210:30:162
25625991212,0cyclictest28-21ksoftirqd/208:45:132
25625991211,1cyclictest28-21ksoftirqd/212:25:122
25625991211,1cyclictest28-21ksoftirqd/212:15:102
25625991211,1cyclictest28-21ksoftirqd/212:10:162
25625991211,1cyclictest28-21ksoftirqd/211:05:172
25625991210,1cyclictest28-21ksoftirqd/209:40:002
2561199124,4cyclictest12972-21sed07:50:000
2563399111,6cyclictest1029-21snmpd10:41:423
2562599119,1cyclictest28-21ksoftirqd/209:05:002
25625991110,1cyclictest28-21ksoftirqd/212:30:212
25625991110,1cyclictest28-21ksoftirqd/209:32:452
2563399106,1cyclictest1029-21snmpd10:49:473
2562599109,1cyclictest28-21ksoftirqd/212:35:142
2562599109,1cyclictest28-21ksoftirqd/212:22:322
2562599109,1cyclictest28-21ksoftirqd/212:05:172
2562599109,1cyclictest28-21ksoftirqd/210:35:022
2562599109,1cyclictest28-21ksoftirqd/209:25:222
2562599109,1cyclictest28-21ksoftirqd/209:21:542
2562599109,1cyclictest28-21ksoftirqd/209:12:282
25625991010,0cyclictest28-21ksoftirqd/211:31:092
25625991010,0cyclictest28-21ksoftirqd/209:19:422
2562599100,9cyclictest0-21swapper/210:00:172
2561199102,7cyclictest18476-21diskmemload11:42:530
152962100,0sleep10-21swapper/111:14:421
256339992,7cyclictest19267-21latency_hist11:20:003
256259999,0cyclictest28-21ksoftirqd/210:50:142
256259998,1cyclictest28-21ksoftirqd/211:54:242
256259998,1cyclictest28-21ksoftirqd/211:49:162
256259998,1cyclictest28-21ksoftirqd/210:56:412
256259998,1cyclictest28-21ksoftirqd/210:41:282
256259998,1cyclictest28-21ksoftirqd/210:27:302
256259998,1cyclictest28-21ksoftirqd/210:10:182
256259998,1cyclictest28-21ksoftirqd/208:30:102
256259997,1cyclictest28-21ksoftirqd/211:55:062
256259997,1cyclictest28-21ksoftirqd/211:23:332
256259997,1cyclictest28-21ksoftirqd/211:01:472
256259997,1cyclictest28-21ksoftirqd/210:05:132
256259997,1cyclictest28-21ksoftirqd/209:55:142
256259997,1cyclictest28-21ksoftirqd/209:54:292
256259997,1cyclictest28-21ksoftirqd/209:45:102
256259993,4cyclictest28-21ksoftirqd/211:18:212
256259990,6cyclictest29693-21apt-get08:25:122
256259990,6cyclictest27979-21kworker/2:109:05:172
256339987,1cyclictest35-21ksoftirqd/308:04:593
256339986,1cyclictest1029-21snmpd08:22:213
256339984,1cyclictest7517-21users11:45:213
256339980,3cyclictest0-21swapper/309:40:113
256259987,1cyclictest28-21ksoftirqd/211:39:212
256259987,1cyclictest28-21ksoftirqd/211:12:062
256259987,1cyclictest28-21ksoftirqd/210:21:492
256259987,1cyclictest28-21ksoftirqd/207:35:002
256259986,1cyclictest61650irq/122-eno108:59:592
256259986,1cyclictest61650irq/122-eno107:40:002
256259986,1cyclictest28-21ksoftirqd/212:00:492
256259986,1cyclictest11700-21cat07:45:162
256259981,5cyclictest4117-21rm11:41:092
256259980,8cyclictest0-21swapper/208:10:162
256259980,7cyclictest1970-21grep07:25:162
256199981,4cyclictest0-21swapper/111:00:111
256119986,1cyclictest9-21ksoftirqd/011:13:140
256119986,1cyclictest1029-21snmpd10:23:460
256119980,7cyclictest26586-21ssh10:00:360
256119980,7cyclictest21314-21ssh10:38:520
256119980,7cyclictest11748-21chrt09:41:030
256119980,1cyclictest4474-21ssh09:32:070
11774280,1sleep312123-21diskstats08:55:133
256339977,0cyclictest35-21ksoftirqd/310:52:583
256339976,1cyclictest1029-21snmpd11:26:333
256339976,1cyclictest1029-21snmpd08:11:303
256339975,1cyclictest1029-21snmpd09:23:543
256339975,1cyclictest1029-21snmpd08:36:493
256339974,1cyclictest13650irq/124-ahci[0008:34:553
256339973,4cyclictest20483-21sh10:36:303
256339972,4cyclictest1029-21snmpd11:10:323
256339972,3cyclictest28908-21kworker/u8:212:01:263
256339971,4cyclictest18912-1kworker/u9:112:15:473
256339971,4cyclictest0-21swapper/311:50:113
256339971,2cyclictest18476-21diskmemload10:00:123
256339970,6cyclictest30801-1kworker/u9:010:10:223
256339970,6cyclictest13987-21/usr/sbin/munin09:00:183
256339970,5cyclictest0-21swapper/312:25:103
256339970,3cyclictest0-21swapper/312:10:103
256339970,2cyclictest0-21swapper/311:55:163
256339970,0cyclictest18476-21diskmemload09:51:323
256259977,0cyclictest28-21ksoftirqd/210:15:132
256259977,0cyclictest28-21ksoftirqd/207:50:002
256259976,1cyclictest28-21ksoftirqd/210:45:142
256259976,1cyclictest28-21ksoftirqd/208:10:012
256259976,1cyclictest28-21ksoftirqd/207:15:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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