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2026-04-16 - 07:49
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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 Thu Apr 16, 2026 00:45:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
219982206150,22sleep10-21swapper/119:08:421
220572202162,26sleep30-21swapper/319:09:283
217782202164,24sleep20-21swapper/219:05:492
218332199161,24sleep00-21swapper/019:06:320
147332760,0sleep10-21swapper/123:55:171
253132700,0sleep00-21swapper/022:02:090
204222620,0sleep00-21swapper/022:39:140
64722600,0sleep06461-21gpgv20:50:000
254752160,0sleep20-21swapper/222:02:352
2223999130,12cyclictest0-21swapper/119:10:111
22215991312,1cyclictest0-21swapper/019:30:110
22215991311,1cyclictest9-21ksoftirqd/000:40:000
22244991110,1cyclictest27619-21sh22:48:062
2221599113,4cyclictest15827-21diskmemload22:10:000
2225199102,5cyclictest0-21swapper/322:19:513
22215991010,0cyclictest0-21swapper/000:28:480
2221599100,7cyclictest240-21systemd-journal22:20:000
24307290,0sleep315827-21diskmemload00:08:253
222449990,2cyclictest0-21swapper/220:25:112
222399990,4cyclictest143632sleep100:37:391
222159998,1cyclictest9-21ksoftirqd/023:05:000
222159998,1cyclictest9-21ksoftirqd/020:55:000
222159997,1cyclictest9-21ksoftirqd/021:03:560
222159997,1cyclictest9-21ksoftirqd/020:45:000
222159997,1cyclictest9-21ksoftirqd/000:20:010
222159993,5cyclictest28381-21cut22:50:000
222159991,4cyclictest18704-21/usr/sbin/munin23:20:000
222519986,1cyclictest35-21ksoftirqd/322:15:013
222519980,2cyclictest16110-21irqstats23:15:153
222449987,1cyclictest399-21aten_r1power_en00:20:122
222449986,2cyclictest61650irq/122-eno100:13:182
222449986,1cyclictest61650irq/122-eno123:20:012
222449986,1cyclictest61650irq/122-eno123:16:422
222449986,1cyclictest61650irq/122-eno123:10:192
222449986,1cyclictest61650irq/122-eno123:09:442
222449986,1cyclictest61650irq/122-eno121:36:112
222449986,1cyclictest61650irq/122-eno100:35:132
222449986,1cyclictest14642-21sendmail-msp20:00:002
222449984,3cyclictest24379-21expr21:20:132
222399982,3cyclictest0-21swapper/122:00:331
222399980,5cyclictest0-21swapper/100:01:301
222399980,1cyclictest0-21swapper/122:10:131
222159986,1cyclictest9-21ksoftirqd/023:40:120
222159986,1cyclictest9-21ksoftirqd/023:30:000
222159986,1cyclictest9-21ksoftirqd/020:35:110
222159986,1cyclictest7713-21apt-get21:40:100
222159986,1cyclictest18305-21ssh21:53:450
222159985,2cyclictest6699-21fschecks_time23:45:130
222159982,1cyclictest10135-21/usr/sbin/munin19:50:120
222159981,1cyclictest1621-21ssh23:39:190
222519976,1cyclictest35-21ksoftirqd/319:25:003
222519975,1cyclictest35-21ksoftirqd/321:19:593
222519974,2cyclictest15827-21diskmemload21:21:003
222519973,2cyclictest32181-21mailstats23:35:173
222519972,2cyclictest17203-21apt-get22:35:113
222519971,5cyclictest26999-21apt-get23:30:113
222519970,6cyclictest22085-21ssh23:23:223
222519970,6cyclictest0-21swapper/322:53:593
222519970,5cyclictest13715-21apt-get21:05:123
222519970,1cyclictest0-21swapper/320:05:113
222449976,1cyclictest61650irq/122-eno123:47:072
222449976,1cyclictest61650irq/122-eno123:41:062
222449976,1cyclictest61650irq/122-eno123:30:112
222449976,1cyclictest61650irq/122-eno122:29:232
222449976,1cyclictest61650irq/122-eno122:09:262
222449976,1cyclictest61650irq/122-eno121:50:152
222449976,1cyclictest61650irq/122-eno121:19:522
222449976,1cyclictest61650irq/122-eno120:45:172
222449976,1cyclictest61650irq/122-eno100:15:252
222449976,1cyclictest28-21ksoftirqd/221:10:102
222449975,1cyclictest61650irq/122-eno123:36:322
222449975,1cyclictest61650irq/122-eno122:30:122
222449975,1cyclictest61650irq/122-eno122:20:102
222449975,1cyclictest61650irq/122-eno121:30:112
222449975,1cyclictest61650irq/122-eno121:25:152
222449975,1cyclictest61650irq/122-eno120:20:002
222449975,1cyclictest61650irq/122-eno100:05:132
222449975,1cyclictest15710-21perl20:00:132
222449974,1cyclictest61650irq/122-eno100:29:562
222449971,4cyclictest1715-21apt-get20:40:102
222449970,2cyclictest0-21swapper/221:45:102
222399971,4cyclictest0-21swapper/121:25:001
222399971,3cyclictest0-21swapper/121:50:151
222399970,6cyclictest0-21swapper/121:40:121
222399970,6cyclictest0-21swapper/100:25:151
222399970,4cyclictest0-21swapper/120:03:391
222399970,1cyclictest0-21swapper/122:59:061
222159977,0cyclictest9-21ksoftirqd/022:15:170
222159976,1cyclictest9-21ksoftirqd/023:09:100
222159976,1cyclictest25879-1kworker/u9:021:26:160
222159975,1cyclictest9-21ksoftirqd/023:20:010
222159975,1cyclictest9-21ksoftirqd/022:50:120
222159975,1cyclictest7887-1kworker/u9:223:55:160
222159975,1cyclictest32356-21ssh22:55:020
222159972,1cyclictest13947-21taskset22:30:140
222159971,3cyclictest24747-21perf19:15:010
222159970,6cyclictest8282-21cstates00:30:150
222159970,6cyclictest693-21runrttasks00:06:130
222159970,6cyclictest19456-21ssh00:01:090
222159970,6cyclictest17935-21ssh21:10:400
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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