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2026-03-24 - 02:01
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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 Mar 24, 2026 00:45:20)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
112862229156,23sleep20-21swapper/219:06:182
115292213150,20sleep00-21swapper/019:09:250
113462212148,22sleep30-21swapper/319:07:033
113542198158,26sleep10-21swapper/119:07:091
189312680,0sleep218937-21switchtime19:20:202
309052660,0sleep00-21swapper/000:26:520
40542630,0sleep10-21swapper/123:52:331
193702610,0sleep10-21swapper/122:49:531
30822600,0sleep10-21swapper/123:10:111
208282580,0sleep30-21swapper/322:09:543
78412180,0sleep20-21swapper/221:51:222
219542140,0sleep30-21swapper/323:35:003
11645991412,1cyclictest9-21ksoftirqd/020:25:000
11645991410,2cyclictest240-21systemd-journal20:55:000
1164599132,5cyclictest13398-21latency_hist21:20:010
1164599130,12cyclictest5111-21diskmemload23:05:110
11645991210,1cyclictest9-21ksoftirqd/019:45:000
85722110,0sleep20-21swapper/223:15:512
1164599113,4cyclictest1760-21latency_hist19:55:000
11645991110,1cyclictest9-21ksoftirqd/000:40:000
1166799109,1cyclictest35-21ksoftirqd/320:40:003
1165999108,1cyclictest18150-21sh23:30:082
1165999100,5cyclictest61650irq/122-eno100:30:212
1164599108,1cyclictest9-21ksoftirqd/022:25:130
1164599108,1cyclictest9-21ksoftirqd/022:15:140
20520290,1sleep20-21swapper/222:09:052
116679998,1cyclictest35-21ksoftirqd/322:35:003
116679997,1cyclictest3183-21ssh00:34:033
116679990,5cyclictest11159-21munin-run20:15:003
116459998,1cyclictest9-21ksoftirqd/022:20:150
116459998,1cyclictest9-21ksoftirqd/021:45:200
116459998,1cyclictest9-21ksoftirqd/000:20:000
116459997,1cyclictest9-21ksoftirqd/023:00:010
116459997,1cyclictest9-21ksoftirqd/019:40:000
116459997,1cyclictest9-21ksoftirqd/000:05:000
116459993,5cyclictest4165-21wc20:00:000
116459991,4cyclictest14075-21perf23:25:000
20454280,1sleep10-21swapper/100:15:011
11935280,0sleep10-21swapper/123:20:201
116679987,1cyclictest707-21snmpd19:14:383
116679986,1cyclictest707-21snmpd22:51:433
116679986,1cyclictest707-21snmpd22:12:153
116679986,1cyclictest707-21snmpd20:16:503
116679986,1cyclictest707-21snmpd19:28:423
116679983,4cyclictest27876-21nscd23:21:553
116679981,6cyclictest2333-21ssh22:25:473
116679981,6cyclictest16917-21apt-get00:10:143
116679981,2cyclictest0-21swapper/320:40:093
116679980,6cyclictest13766-21kworker/u8:121:36:383
116679980,2cyclictest0-21swapper/321:30:123
116599987,1cyclictest28-21ksoftirqd/200:35:042
116599986,2cyclictest707-21snmpd20:24:342
116599986,1cyclictest61650irq/122-eno123:45:122
116599986,1cyclictest61650irq/122-eno121:55:172
116599986,1cyclictest61650irq/122-eno100:20:112
116599986,1cyclictest61650irq/122-eno100:05:132
116599986,1cyclictest28-21ksoftirqd/223:22:342
116599986,1cyclictest28-21ksoftirqd/221:31:162
116599986,1cyclictest28-21ksoftirqd/219:30:002
116599984,2cyclictest240-21systemd-journal22:40:002
116539980,6cyclictest203-21jbd2/sda2-821:10:051
116539980,5cyclictest0-21swapper/123:25:121
116459988,0cyclictest9-21ksoftirqd/019:25:150
116459987,1cyclictest9-21ksoftirqd/022:10:000
116459987,1cyclictest9-21ksoftirqd/019:45:140
116459987,1cyclictest9-21ksoftirqd/000:10:150
116459986,1cyclictest707-21snmpd21:13:020
116459986,1cyclictest707-21snmpd19:21:500
116459984,3cyclictest5111-21diskmemload21:25:020
116459984,3cyclictest10726-21ntp_states21:55:160
116459981,1cyclictest0-21swapper/023:28:560
116459980,7cyclictest5761-21ssh23:13:320
116459980,4cyclictest0-21swapper/020:45:130
116679976,1cyclictest35-21ksoftirqd/319:35:013
116679975,1cyclictest707-21snmpd22:18:523
116679975,1cyclictest707-21snmpd21:07:083
116679975,1cyclictest707-21snmpd19:47:303
116679975,1cyclictest707-21snmpd19:40:033
116679975,1cyclictest6999-21ssh00:38:563
116679975,1cyclictest25552-21cat00:20:153
116679973,2cyclictest0-21swapper/321:42:163
116679971,2cyclictest0-21swapper/323:00:123
116679970,6cyclictest17474-21ssh23:28:573
116679970,3cyclictest0-21swapper/323:40:363
116679970,3cyclictest0-21swapper/319:50:103
116679970,1cyclictest240-21systemd-journal21:49:563
116599976,1cyclictest61650irq/122-eno123:40:132
116599976,1cyclictest61650irq/122-eno122:59:542
116599976,1cyclictest61650irq/122-eno122:33:342
116599976,1cyclictest61650irq/122-eno122:14:292
116599976,1cyclictest61650irq/122-eno122:00:112
116599976,0cyclictest61650irq/122-eno123:25:122
116599976,0cyclictest61650irq/122-eno100:00:132
116599975,1cyclictest707-21snmpd22:50:342
116599975,1cyclictest707-21snmpd22:17:222
116599975,1cyclictest707-21snmpd21:40:152
116599975,1cyclictest61650irq/122-eno120:33:512
116599975,1cyclictest28-21ksoftirqd/219:15:002
116599975,0cyclictest61650irq/122-eno121:21:172
116599973,3cyclictest31340-21apt-get23:05:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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