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2026-07-21 - 02:48
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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 Jul 21, 2026 00:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
225772235160,25sleep20-21swapper/219:08:512
223622210172,24sleep00-21swapper/019:06:040
224562200161,26sleep30-21swapper/319:07:153
223682199163,23sleep10-21swapper/119:06:081
21452180,0sleep10-21swapper/120:40:131
2275799140,1cyclictest0-21swapper/222:35:122
22748991211,1cyclictest9-21ksoftirqd/022:50:150
22748991211,1cyclictest9-21ksoftirqd/000:25:000
22748991210,1cyclictest9-21ksoftirqd/023:05:000
2274899119,1cyclictest9-21ksoftirqd/022:25:000
2274899119,1cyclictest9-21ksoftirqd/020:00:010
22748991111,0cyclictest9-21ksoftirqd/023:07:100
22748991110,1cyclictest9-21ksoftirqd/023:55:120
22748991110,1cyclictest9-21ksoftirqd/022:50:000
22748991110,1cyclictest9-21ksoftirqd/022:05:130
22748991110,1cyclictest9-21ksoftirqd/019:40:000
2276599107,2cyclictest0-21swapper/321:48:423
2275799109,0cyclictest0-21swapper/222:55:122
2274899109,1cyclictest9-21ksoftirqd/000:35:140
2274899108,1cyclictest9-21ksoftirqd/022:55:160
2274899108,1cyclictest9-21ksoftirqd/019:25:170
2274899108,1cyclictest9-21ksoftirqd/000:10:140
22748991010,0cyclictest9-21ksoftirqd/023:15:160
2274899100,7cyclictest29784-21python19:20:200
2274899100,6cyclictest240-21systemd-journal20:40:000
227659998,1cyclictest35-21ksoftirqd/320:05:133
227659990,5cyclictest0-21swapper/321:40:083
227579999,0cyclictest28-21ksoftirqd/200:16:572
227579999,0cyclictest28-21ksoftirqd/200:16:562
227579998,1cyclictest28-21ksoftirqd/223:27:072
227579998,1cyclictest28-21ksoftirqd/200:01:552
227579991,7cyclictest11792-21cron22:35:002
227579990,6cyclictest1429-21/usr/sbin/munin23:05:182
227579990,5cyclictest0-21swapper/221:16:322
227489999,0cyclictest9-21ksoftirqd/023:50:160
227489999,0cyclictest9-21ksoftirqd/021:50:160
227489998,1cyclictest9-21ksoftirqd/019:19:590
227489998,1cyclictest9-21ksoftirqd/000:35:000
227489997,1cyclictest9-21ksoftirqd/021:15:150
227489997,1cyclictest9-21ksoftirqd/021:12:260
227489990,8cyclictest0-21swapper/019:10:100
22667290,1sleep30-21swapper/321:19:193
227659986,1cyclictest35-21ksoftirqd/321:00:013
227659986,1cyclictest20817-21cat20:10:163
227659984,2cyclictest693-21runrttasks22:37:573
227659984,2cyclictest15803-21diskmemload22:41:193
227659984,0cyclictest15803-21diskmemload22:13:343
227659980,3cyclictest0-21swapper/322:21:083
227659980,2cyclictest30615-21/usr/sbin/munin21:30:173
227659980,0cyclictest0-21swapper/323:10:173
227579987,1cyclictest28-21ksoftirqd/219:55:102
227579987,1cyclictest250612sleep219:15:012
227579986,1cyclictest61650irq/122-eno122:15:132
227579986,1cyclictest61650irq/122-eno122:05:122
227579983,3cyclictest693-21runrttasks22:48:212
227579983,2cyclictest240-21systemd-journal21:40:552
227579981,5cyclictest28-21ksoftirqd/223:38:012
227579980,7cyclictest0-21swapper/222:25:012
227579980,6cyclictest0-21swapper/223:57:292
227539981,4cyclictest25148-21taskset22:06:021
227539980,5cyclictest0-21swapper/123:00:141
227489988,0cyclictest9-21ksoftirqd/023:45:200
227489988,0cyclictest9-21ksoftirqd/022:25:140
227489987,1cyclictest9-21ksoftirqd/022:30:110
227489987,1cyclictest9-21ksoftirqd/022:00:120
227489987,1cyclictest9-21ksoftirqd/021:20:180
227489987,1cyclictest9-21ksoftirqd/000:25:220
227489986,1cyclictest9-21ksoftirqd/020:29:590
227489983,1cyclictest19340-21munin-run22:00:010
227489980,4cyclictest11338-21/usr/sbin/munin00:05:090
21626280,1sleep10-21swapper/121:16:171
14125280,0sleep00-21swapper/022:35:350
227659975,1cyclictest561-21nscd22:18:183
227659975,1cyclictest35-21ksoftirqd/319:55:003
227659975,1cyclictest24416-21ssh23:35:273
227659975,1cyclictest18123-21ssh21:11:483
227659975,1cyclictest14271-21ssh00:08:583
227659973,1cyclictest12029-21apt-get23:20:123
227659972,2cyclictest240-21systemd-journal22:00:013
227659971,4cyclictest0-21swapper/322:00:113
227659970,4cyclictest32267-21sh23:47:583
227659970,4cyclictest0-21swapper/323:40:153
227659970,3cyclictest25690-21apt-get00:25:113
227659970,1cyclictest5435-21ntp_kernel_pll_23:55:163
227659970,1cyclictest28209-21grep22:55:213
227659970,1cyclictest0-21swapper/322:05:113
227659970,1cyclictest0-21swapper/300:31:103
227579976,1cyclictest61650irq/122-eno123:48:532
227579976,1cyclictest61650irq/122-eno123:20:052
227579976,1cyclictest61650irq/122-eno123:02:382
227579976,1cyclictest61650irq/122-eno122:40:122
227579976,1cyclictest61650irq/122-eno121:30:162
227579976,1cyclictest61650irq/122-eno121:20:292
227579976,1cyclictest61650irq/122-eno121:10:142
227579976,1cyclictest61650irq/122-eno120:45:152
227579975,1cyclictest61650irq/122-eno121:40:012
227579975,1cyclictest26692-21apt-get22:10:122
227579974,2cyclictest583-21in:imuxsock20:39:592
227579973,2cyclictest240-21systemd-journal21:10:012
227579973,1cyclictest0-21swapper/219:30:202
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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