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2026-05-02 - 04:59
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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 May 02, 2026 00:45:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
233302223158,25sleep10-21swapper/119:06:481
235002214149,21sleep00-21swapper/019:09:020
234262214150,23sleep30-21swapper/319:08:043
233632213157,24sleep20-21swapper/219:07:152
53192720,0sleep10-21swapper/123:00:221
218252570,0sleep00-21swapper/000:05:260
275002230,0sleep10-21swapper/123:30:171
2367199140,13cyclictest0-21swapper/219:55:172
2366599140,14cyclictest0-21swapper/122:10:121
23655991413,1cyclictest9-21ksoftirqd/019:30:150
2365599123,4cyclictest6902-21sed20:50:010
23655991211,1cyclictest9-21ksoftirqd/020:10:000
23655991210,1cyclictest9-21ksoftirqd/020:05:010
2365599120,2cyclictest240-21systemd-journal22:38:540
2367199114,3cyclictest61650irq/122-eno122:50:192
2365599119,1cyclictest9-21ksoftirqd/022:45:130
2365599119,1cyclictest9-21ksoftirqd/019:15:000
23655991110,1cyclictest9-21ksoftirqd/021:55:010
2368199108,1cyclictest27291-21sh20:25:003
2366599100,9cyclictest0-21swapper/100:08:101
2365599109,1cyclictest9-21ksoftirqd/023:55:000
2365599109,1cyclictest9-21ksoftirqd/023:05:000
2365599109,1cyclictest9-21ksoftirqd/022:25:000
2365599109,1cyclictest9-21ksoftirqd/021:10:130
2365599109,1cyclictest9-21ksoftirqd/020:35:000
2365599103,3cyclictest22476-21apt-get22:00:000
2365599100,7cyclictest240-21systemd-journal22:10:000
2365599100,5cyclictest31445-21latency_hist19:25:000
2365599100,5cyclictest16518-21diskmemload21:48:040
2365599100,4cyclictest0-21swapper/019:50:110
236819997,1cyclictest16518-21diskmemload21:57:343
236819990,6cyclictest17490-21grep21:10:133
236719998,1cyclictest28-21ksoftirqd/220:50:092
236719995,2cyclictest28-21ksoftirqd/200:12:242
236719990,7cyclictest0-21swapper/223:27:592
236659995,4cyclictest203-21jbd2/sda2-822:06:131
236659990,8cyclictest0-21swapper/122:28:561
236559999,0cyclictest9-21ksoftirqd/000:15:120
236559998,1cyclictest9-21ksoftirqd/023:15:150
236819987,1cyclictest35-21ksoftirqd/319:30:003
236819987,1cyclictest30002-21apt-key20:30:013
236819985,3cyclictest769-21lldpd22:56:243
236819985,1cyclictest13650irq/124-ahci[0000:39:553
236819980,4cyclictest0-21swapper/323:40:103
236719987,1cyclictest28-21ksoftirqd/221:08:062
236719986,1cyclictest7830-21cat00:30:162
236719986,1cyclictest7830-21cat00:30:152
236719986,1cyclictest61650irq/122-eno120:45:202
236719986,1cyclictest61650irq/122-eno100:37:162
236719986,1cyclictest61650irq/122-eno100:19:592
236719984,1cyclictest240-21systemd-journal21:05:012
236719982,4cyclictest0-21swapper/220:55:112
236719982,4cyclictest0-21swapper/220:55:102
236719981,4cyclictest11761-21sh22:26:582
236719980,7cyclictest0-21swapper/200:09:152
236559988,0cyclictest9-21ksoftirqd/000:25:130
236559987,1cyclictest9-21ksoftirqd/022:55:150
236559987,1cyclictest9-21ksoftirqd/021:30:140
236559987,1cyclictest9-21ksoftirqd/021:00:130
236559987,1cyclictest9-21ksoftirqd/021:00:010
236559987,1cyclictest9-21ksoftirqd/021:00:000
236559987,1cyclictest9-21ksoftirqd/020:29:590
236559987,1cyclictest9-21ksoftirqd/019:15:010
236559987,1cyclictest9-21ksoftirqd/000:35:140
236559986,1cyclictest19825-21sh00:04:230
236559983,4cyclictest12866-21apt-get22:30:010
236559981,6cyclictest26321-21telnet23:30:120
236559981,4cyclictest24100-21/usr/sbin/munin00:10:200
12560280,0sleep10-21swapper/100:35:391
236819977,0cyclictest35-21ksoftirqd/321:49:043
236819975,1cyclictest8138-21ssh23:48:533
236819975,1cyclictest20533-21apt-get21:15:113
236819973,2cyclictest29320-21sshd20:25:563
236819973,2cyclictest240-21systemd-journal20:01:363
236819972,3cyclictest16518-21diskmemload22:50:113
236819972,3cyclictest16518-21diskmemload00:15:153
236819972,2cyclictest0-21swapper/323:51:333
236819971,3cyclictest5064-21switchtime23:00:223
236819971,3cyclictest0-21swapper/320:45:143
236819970,2cyclictest0-21swapper/322:40:193
236719976,1cyclictest61650irq/122-eno123:53:522
236719976,1cyclictest61650irq/122-eno123:20:112
236719976,1cyclictest61650irq/122-eno122:00:182
236719976,1cyclictest61650irq/122-eno121:35:102
236719976,1cyclictest61650irq/122-eno120:10:132
236719976,1cyclictest14260-21cat22:30:142
236719976,0cyclictest61650irq/122-eno123:45:122
236719976,0cyclictest61650irq/122-eno122:42:092
236719975,1cyclictest61650irq/122-eno122:10:192
236719975,1cyclictest61650irq/122-eno120:25:132
236719975,1cyclictest61650irq/122-eno119:35:142
236719975,1cyclictest28-21ksoftirqd/219:45:112
236719973,3cyclictest2125-21cron20:39:592
236719972,2cyclictest240-21systemd-journal21:29:082
236719972,2cyclictest0-21swapper/222:21:142
236719971,5cyclictest26909-21apt-get19:15:112
236719971,3cyclictest240-21systemd-journal19:55:012
236719970,5cyclictest31212-21kworker/u8:100:22:492
236719970,1cyclictest92362sleep223:05:392
236659976,1cyclictest0-21swapper/100:33:501
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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