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2026-07-15 - 07:25
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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 Wed Jul 15, 2026 00:45:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
180612214164,24sleep30-21swapper/319:09:043
179422213158,43sleep10-21swapper/119:07:291
180852212157,43sleep00-21swapper/019:09:210
180102201161,26sleep20-21swapper/219:08:242
318682690,0sleep30-21swapper/321:35:213
221512660,0sleep30-21swapper/322:50:233
10872180,0sleep121-21ksoftirqd/123:50:201
96462140,0sleep30-21swapper/321:50:153
1822899130,12cyclictest11268-21diskmemload23:35:120
1822899124,4cyclictest17553-21perf20:14:590
18228991210,1cyclictest9-21ksoftirqd/022:10:010
1825599119,1cyclictest35-21ksoftirqd/323:15:013
1825599110,7cyclictest8327-21apt-get19:55:123
1825599110,7cyclictest8327-21apt-get19:55:123
18243991111,0cyclictest0-21swapper/221:25:222
299622100,0sleep20-21swapper/221:34:242
19522100,1sleep20-21swapper/223:52:202
1825599108,1cyclictest35-21ksoftirqd/320:19:593
1825599101,6cyclictest30771-21apt-get22:20:123
1825599100,6cyclictest20773-21munin-node21:30:013
1822899109,1cyclictest9-21ksoftirqd/000:08:500
1822899108,1cyclictest9-21ksoftirqd/020:45:010
182559998,1cyclictest35-21ksoftirqd/322:30:013
182439998,1cyclictest28-21ksoftirqd/200:00:002
182439998,1cyclictest28-21ksoftirqd/200:00:002
182439997,1cyclictest28-21ksoftirqd/222:20:352
182359990,8cyclictest0-21swapper/100:25:121
182289993,5cyclictest6787-21kworker/0:123:19:080
182289990,4cyclictest11268-21diskmemload23:00:000
182289990,2cyclictest0-21swapper/019:25:110
182289990,1cyclictest240-21systemd-journal21:33:370
182559987,1cyclictest35-21ksoftirqd/323:45:013
182559984,0cyclictest11268-21diskmemload23:48:503
182559982,2cyclictest0-21swapper/321:41:053
182559981,5cyclictest16032-21fw_packets21:15:163
182559980,4cyclictest0-21swapper/300:05:133
182439988,0cyclictest0-21swapper/223:19:562
182439987,0cyclictest23903-21sensors20:25:212
182439986,1cyclictest61650irq/122-eno122:40:142
182439986,1cyclictest61650irq/122-eno100:30:122
182439985,1cyclictest61650irq/122-eno123:40:102
182439981,2cyclictest0-21swapper/222:25:132
182439980,8cyclictest0-21swapper/223:47:432
182439980,7cyclictest20773-21munin-node22:17:532
182439980,0cyclictest0-21swapper/223:30:122
182359980,2cyclictest0-21swapper/122:40:131
182289987,1cyclictest11268-21diskmemload22:43:440
182289986,1cyclictest9-21ksoftirqd/019:40:000
182289983,4cyclictest32697-21switchtime23:05:210
182289983,2cyclictest548-21systemd-logind22:35:190
182289982,3cyclictest31951-21apt-get23:50:110
182289982,3cyclictest13326-21latency_hist23:25:000
182289980,7cyclictest32335-21ssh21:35:390
182289980,7cyclictest15695-21ssh23:25:460
182289980,5cyclictest0-21swapper/021:46:120
182289980,2cyclictest16710-21/usr/sbin/munin22:45:160
182289980,1cyclictest18407-21ssh22:01:340
182559977,0cyclictest35-21ksoftirqd/300:16:423
182559976,1cyclictest6700-21cat22:30:153
182559976,1cyclictest35-21ksoftirqd/322:10:003
182559975,1cyclictest9941-21apt-get23:20:123
182559974,1cyclictest240-21systemd-journal22:04:593
182559973,2cyclictest240-21systemd-journal20:55:363
182559970,4cyclictest0-21swapper/319:30:103
182559970,3cyclictest0-21swapper/323:35:043
182439976,1cyclictest61650irq/122-eno123:24:482
182439976,1cyclictest61650irq/122-eno123:05:012
182439976,1cyclictest61650irq/122-eno122:04:542
182439976,1cyclictest61650irq/122-eno121:45:222
182439976,1cyclictest61650irq/122-eno121:37:392
182439976,1cyclictest61650irq/122-eno121:18:242
182439976,1cyclictest61650irq/122-eno100:37:382
182439976,1cyclictest61650irq/122-eno100:28:102
182439976,1cyclictest61650irq/122-eno100:17:202
182439976,1cyclictest28-21ksoftirqd/219:50:112
182439976,1cyclictest13744-21ntpq21:55:182
182439976,1cyclictest0-21swapper/221:21:292
182439976,0cyclictest61650irq/122-eno123:35:032
182439976,0cyclictest61650irq/122-eno121:10:222
182439976,0cyclictest61650irq/122-eno100:10:162
182439975,1cyclictest61650irq/122-eno123:10:132
182439975,1cyclictest61650irq/122-eno122:35:122
182439975,1cyclictest61650irq/122-eno122:10:132
182439975,1cyclictest28-21ksoftirqd/220:25:002
182439975,1cyclictest20409-21/usr/sbin/munin22:05:172
182439973,2cyclictest240-21systemd-journal20:15:002
182439971,6cyclictest61650irq/122-eno121:50:222
182439970,6cyclictest6943-21ntpq22:30:172
182439970,1cyclictest240-21systemd-journal20:10:002
182439970,1cyclictest0-21swapper/222:55:122
182359971,3cyclictest0-21swapper/121:28:371
182359970,6cyclictest0-21swapper/121:00:171
182359970,6cyclictest0-21swapper/120:20:171
182359970,5cyclictest0-21swapper/121:54:371
182359970,4cyclictest0-21swapper/121:56:281
182359970,3cyclictest0-21swapper/123:00:011
182289976,1cyclictest9-21ksoftirqd/020:29:460
182289976,1cyclictest9-21ksoftirqd/000:13:380
182289976,1cyclictest4744-21ssh21:44:150
182289976,1cyclictest30263-1kworker/u9:223:47:370
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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