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2026-09-08 - 18:35
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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 Tue Sep 08, 2026 12:45:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
141162217157,47sleep10-21swapper/107:08:021
141752212157,43sleep30-21swapper/307:08:483
139612202162,26sleep00-21swapper/007:05:590
142592199159,26sleep20-21swapper/207:09:522
196942570,0sleep20-21swapper/208:25:202
165662570,0sleep00-21swapper/010:07:140
5892560,1sleep2547-21perf12:05:002
14377991615,1cyclictest28-21ksoftirqd/212:06:392
18662140,0sleep121-21ksoftirqd/108:55:181
14377991412,2cyclictest28-21ksoftirqd/211:51:042
1437799130,12cyclictest0-21swapper/211:25:172
1437099130,12cyclictest0-21swapper/111:25:151
14377991211,1cyclictest28-21ksoftirqd/209:57:072
14377991211,1cyclictest28-21ksoftirqd/209:05:002
14368991210,1cyclictest9-21ksoftirqd/008:30:000
1436899120,12cyclictest0-21swapper/011:10:100
1438599111,6cyclictest8985-21apt-get08:05:113
1437799119,1cyclictest28-21ksoftirqd/211:11:482
1437799119,0cyclictest28-21ksoftirqd/209:52:332
1437799115,4cyclictest240-21systemd-journal11:45:002
14377991111,0cyclictest28-21ksoftirqd/210:26:592
14377991110,1cyclictest28-21ksoftirqd/212:36:162
14377991110,1cyclictest28-21ksoftirqd/212:20:122
14377991110,1cyclictest28-21ksoftirqd/212:10:152
14377991110,1cyclictest28-21ksoftirqd/211:59:422
14377991110,1cyclictest28-21ksoftirqd/211:15:132
1436899119,1cyclictest9-21ksoftirqd/011:40:000
14368991110,1cyclictest9-21ksoftirqd/009:25:010
1436899110,5cyclictest7049-21cat09:10:000
1438599100,7cyclictest2607-21kworker/u8:111:01:513
1437799109,1cyclictest28-21ksoftirqd/211:35:222
1437799109,1cyclictest28-21ksoftirqd/210:20:172
1437799109,1cyclictest28-21ksoftirqd/210:00:182
1437799109,1cyclictest28-21ksoftirqd/208:25:002
1437799109,0cyclictest28-21ksoftirqd/211:45:152
1437799108,1cyclictest28-21ksoftirqd/210:50:202
1437799108,1cyclictest28-21ksoftirqd/209:26:362
14377991010,0cyclictest28-21ksoftirqd/210:35:002
1436899109,1cyclictest9-21ksoftirqd/007:15:000
1436899108,1cyclictest9-21ksoftirqd/011:51:170
143859998,1cyclictest1982-21sendmail-mta12:25:523
143859997,1cyclictest35-21ksoftirqd/309:00:013
143859990,9cyclictest0-21swapper/311:07:213
143859990,4cyclictest22334-21apt-get07:25:103
143779999,0cyclictest28-21ksoftirqd/212:29:362
143779999,0cyclictest28-21ksoftirqd/210:40:182
143779999,0cyclictest28-21ksoftirqd/209:20:122
143779998,1cyclictest28-21ksoftirqd/211:30:162
143779998,1cyclictest28-21ksoftirqd/211:23:422
143779998,1cyclictest28-21ksoftirqd/210:55:172
143779998,1cyclictest28-21ksoftirqd/210:07:312
143779998,1cyclictest28-21ksoftirqd/209:45:142
143779998,1cyclictest28-21ksoftirqd/209:39:372
143779998,1cyclictest28-21ksoftirqd/209:30:012
143779997,1cyclictest28-21ksoftirqd/210:15:152
143779997,1cyclictest28-21ksoftirqd/208:40:232
143779997,1cyclictest28-21ksoftirqd/208:00:132
143779992,6cyclictest18478-21apt-get12:30:112
143689998,1cyclictest9-21ksoftirqd/011:30:140
143689998,1cyclictest9-21ksoftirqd/011:30:000
143689998,1cyclictest9-21ksoftirqd/010:55:000
143689998,1cyclictest9-21ksoftirqd/010:45:010
143689998,1cyclictest9-21ksoftirqd/010:15:170
143689997,1cyclictest9-21ksoftirqd/010:00:000
143689992,6cyclictest21502-21perf09:30:000
143859988,0cyclictest35-21ksoftirqd/312:13:553
143859988,0cyclictest35-21ksoftirqd/309:26:463
143859986,1cyclictest11301-21snmpd11:57:043
143859986,1cyclictest11301-21snmpd10:44:473
143859986,1cyclictest11301-21snmpd09:23:563
143859984,3cyclictest11301-21snmpd10:05:463
143859980,4cyclictest28170-21taskset10:25:103
143779988,0cyclictest28-21ksoftirqd/210:48:212
143779987,1cyclictest28-21ksoftirqd/211:00:142
143779987,1cyclictest28-21ksoftirqd/209:11:082
143779987,1cyclictest28-21ksoftirqd/208:55:002
143779987,1cyclictest28-21ksoftirqd/207:30:242
143779987,1cyclictest28-21ksoftirqd/207:25:132
143779986,1cyclictest61650irq/122-eno110:35:162
143779986,1cyclictest61650irq/122-eno109:40:202
143779986,1cyclictest28-21ksoftirqd/211:08:222
143779986,1cyclictest28-21ksoftirqd/207:25:002
143779986,1cyclictest11301-21snmpd09:15:142
143689988,0cyclictest9-21ksoftirqd/012:10:000
143689987,1cyclictest9068-21ssh09:10:340
143689987,1cyclictest9-21ksoftirqd/012:20:010
143689987,1cyclictest9-21ksoftirqd/011:20:200
143689987,1cyclictest9-21ksoftirqd/010:40:000
143689987,1cyclictest9-21ksoftirqd/010:00:110
143689987,1cyclictest9-21ksoftirqd/007:40:000
143689986,1cyclictest11301-21snmpd08:13:000
143689981,6cyclictest22468-21diskstats12:35:130
143689981,1cyclictest19508-21ssh10:10:280
143689980,7cyclictest13068-21ssh09:17:060
143689980,7cyclictest0-21swapper/009:30:170
143859976,1cyclictest35-21ksoftirqd/308:50:003
143859976,1cyclictest35-21ksoftirqd/307:14:213
143859976,1cyclictest1243-21ntpq09:45:193
143859976,1cyclictest11301-21snmpd11:12:393
143859975,1cyclictest9745-21ssh09:58:273
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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