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2026-03-28 - 06:20
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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 Mar 28, 2026 00:45:20)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
180782210160,24sleep20-21swapper/219:09:562
180762201160,26sleep00-21swapper/019:09:540
177712200161,26sleep30-21swapper/319:05:543
180772199161,25sleep10-21swapper/119:09:541
63492210,0sleep00-21swapper/022:25:120
18173991414,0cyclictest35-21ksoftirqd/300:30:133
1816299120,0cyclictest0-21swapper/219:10:112
1816199120,0cyclictest0-21swapper/119:10:111
18158991210,1cyclictest9-21ksoftirqd/023:25:010
1817399119,1cyclictest35-21ksoftirqd/319:30:133
1816299110,11cyclictest0-21swapper/222:36:302
1815899119,1cyclictest9-21ksoftirqd/020:50:130
1815899119,1cyclictest9-21ksoftirqd/020:35:000
1815899119,1cyclictest9-21ksoftirqd/000:25:130
18158991110,1cyclictest9-21ksoftirqd/000:00:190
1817399109,1cyclictest35-21ksoftirqd/300:15:013
1816299108,1cyclictest28-21ksoftirqd/220:15:112
1815899109,1cyclictest9-21ksoftirqd/021:50:000
1815899108,1cyclictest9-21ksoftirqd/022:25:000
1815899108,1cyclictest9-21ksoftirqd/021:35:010
1815899106,2cyclictest9-21ksoftirqd/020:40:000
181739999,0cyclictest35-21ksoftirqd/320:15:003
181739998,1cyclictest35-21ksoftirqd/322:55:143
181739998,1cyclictest35-21ksoftirqd/322:05:533
181739998,0cyclictest35-21ksoftirqd/320:25:223
181739997,1cyclictest35-21ksoftirqd/322:00:183
181739997,1cyclictest11020-21diskmemload00:22:263
181739992,4cyclictest13867-21ssh23:15:183
181629998,1cyclictest28-21ksoftirqd/219:30:012
181629994,2cyclictest240-21systemd-journal23:49:232
181629993,4cyclictest240-21systemd-journal20:10:002
181629990,4cyclictest0-21swapper/220:20:122
181619999,0cyclictest0-21swapper/123:52:011
181619990,8cyclictest0-21swapper/123:35:131
181589998,1cyclictest9-21ksoftirqd/023:05:120
181589998,1cyclictest9-21ksoftirqd/023:00:000
181589998,1cyclictest9-21ksoftirqd/022:15:100
181589998,1cyclictest9-21ksoftirqd/021:50:200
181589998,1cyclictest9-21ksoftirqd/021:40:110
181589998,1cyclictest9-21ksoftirqd/019:10:010
181589998,1cyclictest9-21ksoftirqd/000:15:090
181589992,6cyclictest1255-21expr23:00:130
181589990,0cyclictest13616-21ssh23:57:440
13018290,0sleep30-21swapper/321:50:353
23476280,0sleep20-21swapper/223:29:032
20529280,0sleep10-21swapper/100:05:391
181739988,0cyclictest35-21ksoftirqd/321:20:113
181739987,1cyclictest35-21ksoftirqd/323:30:223
181739987,1cyclictest35-21ksoftirqd/321:40:183
181739986,1cyclictest35-21ksoftirqd/323:35:113
181739986,1cyclictest35-21ksoftirqd/300:05:163
181739980,8cyclictest0-21swapper/323:21:093
181739980,5cyclictest25330-21apt-get22:50:133
181739980,4cyclictest0-21swapper/300:18:493
181739980,3cyclictest0-21swapper/323:10:123
181629987,1cyclictest28-21ksoftirqd/223:09:592
181629986,1cyclictest61650irq/122-eno121:45:112
181629986,1cyclictest61650irq/122-eno121:30:142
181629986,1cyclictest61650irq/122-eno121:20:162
181629986,1cyclictest1747-21ntpd21:50:172
181629982,4cyclictest61650irq/122-eno100:10:542
181619980,8cyclictest0-21swapper/121:25:541
181619980,4cyclictest0-21swapper/120:00:101
181589988,0cyclictest9-21ksoftirqd/023:45:160
181589988,0cyclictest9-21ksoftirqd/023:34:010
181589988,0cyclictest9-21ksoftirqd/000:20:120
181589986,1cyclictest9-21ksoftirqd/023:50:130
181589986,1cyclictest9-21ksoftirqd/022:47:040
181589986,1cyclictest12015-1kworker/u9:223:15:150
181589985,2cyclictest9-21ksoftirqd/019:19:590
181589985,2cyclictest9-21ksoftirqd/000:05:150
181589983,1cyclictest5716-21/usr/sbin/munin19:50:140
181589981,3cyclictest240-21systemd-journal21:19:590
181589980,7cyclictest21939-21ssh21:22:220
181589980,7cyclictest20297-21ssh22:42:380
181589980,7cyclictest11286-21ssh21:10:130
181589980,5cyclictest561-21nscd20:55:130
181739977,0cyclictest35-21ksoftirqd/322:20:163
181739976,1cyclictest35-21ksoftirqd/321:30:153
181739976,1cyclictest35-21ksoftirqd/320:55:003
181739976,1cyclictest35-21ksoftirqd/320:10:003
181739976,1cyclictest35-21ksoftirqd/300:00:133
181739976,1cyclictest22513-21cat19:15:163
181739975,1cyclictest7933-21ssh23:09:203
181739975,1cyclictest35-21ksoftirqd/323:25:163
181739975,1cyclictest35-21ksoftirqd/322:15:153
181739975,1cyclictest35-21ksoftirqd/321:25:153
181739975,1cyclictest35-21ksoftirqd/321:00:143
181739975,1cyclictest35-21ksoftirqd/320:45:003
181739975,1cyclictest28787-21ssh22:11:263
181739975,1cyclictest16969-21ssh21:55:513
181739975,0cyclictest11020-21diskmemload23:53:373
181739972,4cyclictest26909-21cron20:35:013
181739971,5cyclictest561-21nscd21:35:143
181739971,2cyclictest3263-21apt-get23:45:123
181739970,6cyclictest11020-21diskmemload22:46:493
181739970,4cyclictest31835-21apt-get23:40:103
181739970,2cyclictest0-21swapper/321:49:343
181629976,1cyclictest61650irq/122-eno123:35:172
181629976,1cyclictest61650irq/122-eno123:20:182
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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