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2026-07-14 - 00:12
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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 Mon Jul 13, 2026 12:45:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
169812214150,50sleep00-21swapper/007:05:320
172912210148,48sleep20-21swapper/207:09:372
172152208157,25sleep30-21swapper/307:08:373
172132199162,24sleep10-21swapper/107:08:351
270962640,0sleep10-21swapper/111:00:151
257212550,1sleep31742799cyclictest07:25:153
93172220,0sleep20-21swapper/211:20:152
17407991410,4cyclictest56-21kworker/1:109:55:181
1741699121,9cyclictest30090-21apt-get07:35:112
17403991210,1cyclictest9-21ksoftirqd/008:35:010
1740399120,0cyclictest0-21swapper/011:25:120
1741699119,1cyclictest28-21ksoftirqd/212:20:002
1740799117,4cyclictest21-21ksoftirqd/111:13:381
1740799117,4cyclictest0-21swapper/107:40:551
246882100,1sleep10-21swapper/109:29:051
240642100,0sleep00-21swapper/012:25:140
1742799109,1cyclictest35-21ksoftirqd/311:40:003
1741699109,1cyclictest28-21ksoftirqd/210:30:002
1741699109,1cyclictest28-21ksoftirqd/209:40:172
1740399108,1cyclictest9-21ksoftirqd/007:45:000
1740399106,1cyclictest9-21ksoftirqd/009:00:000
1740399102,4cyclictest22776-21latency_hist07:20:000
1740399100,5cyclictest32596-21perf09:40:000
110062100,0sleep211008-21cron09:55:002
174279998,1cyclictest35-21ksoftirqd/311:20:003
174279998,1cyclictest35-21ksoftirqd/310:00:003
174279997,1cyclictest35-21ksoftirqd/308:40:013
174169999,0cyclictest28-21ksoftirqd/211:00:142
174169998,1cyclictest28-21ksoftirqd/210:50:132
174169998,1cyclictest28-21ksoftirqd/209:35:132
174169998,1cyclictest28-21ksoftirqd/209:05:002
174169997,1cyclictest28-21ksoftirqd/210:40:002
174079995,4cyclictest21-21ksoftirqd/108:59:181
174079995,0cyclictest0-21swapper/108:25:421
174039995,1cyclictest548-21systemd-logind10:45:200
174279986,1cyclictest35-21ksoftirqd/309:00:003
174279986,1cyclictest35-21ksoftirqd/308:10:103
174279980,4cyclictest19763-21kworker/3:108:45:003
174169988,0cyclictest28-21ksoftirqd/207:25:152
174169987,1cyclictest28-21ksoftirqd/212:30:002
174169987,1cyclictest28-21ksoftirqd/212:20:142
174169986,1cyclictest61650irq/122-eno112:35:002
174169986,1cyclictest28-21ksoftirqd/207:20:002
174169984,3cyclictest21276-21perf09:25:002
174169984,2cyclictest240-21systemd-journal09:30:002
174169981,3cyclictest240-21systemd-journal12:01:152
174169980,7cyclictest585-21rs:main2
174169980,4cyclictest271rcuc/212:15:002
174079988,0cyclictest21-21ksoftirqd/110:00:161
174079987,1cyclictest21-21ksoftirqd/112:26:021
174079984,0cyclictest111rcu_preempt11:47:141
174079980,8cyclictest0-21swapper/111:50:221
174079980,8cyclictest0-21swapper/110:56:311
174079980,8cyclictest0-21swapper/107:20:191
174079980,7cyclictest0-21swapper/110:35:131
174079980,4cyclictest0-21swapper/110:25:201
174039987,1cyclictest23264-21/usr/sbin/munin11:40:180
174039981,6cyclictest10057-21diskmemload12:30:150
174039980,7cyclictest30826-21ssh12:35:120
174039980,7cyclictest17342-21ssh09:19:550
174039980,7cyclictest14195-21ssh09:58:440
174039980,7cyclictest10668-21ssh10:37:370
174039980,3cyclictest17713-21/usr/sbin/munin09:20:160
174039980,3cyclictest0-21swapper/010:40:090
32426270,0sleep00-21swapper/010:23:510
174279973,2cyclictest240-21systemd-journal10:04:113
174279973,2cyclictest240-21systemd-journal09:03:093
174279973,1cyclictest240-21systemd-journal11:04:553
174279972,2cyclictest31729-21taskset09:37:383
174279971,4cyclictest9481-21apt-get08:00:123
174279971,4cyclictest13197-21hddtemp_smartct11:25:153
174279971,4cyclictest10057-21diskmemload12:26:443
174279970,4cyclictest10057-21diskmemload12:20:133
174279970,3cyclictest0-21swapper/312:19:083
174279970,2cyclictest0-21swapper/307:49:593
174279970,0cyclictest0-21swapper/310:51:043
174169976,1cyclictest61650irq/122-eno111:06:112
174169976,1cyclictest61650irq/122-eno110:32:552
174169976,1cyclictest61650irq/122-eno110:09:062
174169976,1cyclictest61650irq/122-eno109:55:202
174169976,1cyclictest61650irq/122-eno108:55:232
174169976,1cyclictest61650irq/122-eno107:50:002
174169976,1cyclictest28-21ksoftirqd/210:45:142
174169976,1cyclictest28-21ksoftirqd/210:23:562
174169976,1cyclictest28-21ksoftirqd/209:15:152
174169976,0cyclictest61650irq/122-eno109:10:182
174169975,1cyclictest61650irq/122-eno111:30:142
174169975,1cyclictest61650irq/122-eno111:25:112
174169975,1cyclictest61650irq/122-eno109:48:362
174169975,1cyclictest61650irq/122-eno107:40:202
174169975,1cyclictest61650irq/122-eno107:30:142
174169975,1cyclictest28-21ksoftirqd/208:50:002
174169975,1cyclictest28-21ksoftirqd/208:00:002
174169974,1cyclictest61650irq/122-eno108:40:012
174169974,1cyclictest10057-21diskmemload11:45:142
174169971,3cyclictest240-21systemd-journal08:35:012
174169970,6cyclictest10057-21diskmemload11:35:142
174169970,3cyclictest10057-21diskmemload10:40:182
174169970,3cyclictest0-21swapper/211:15:222
174169970,2cyclictest240-21systemd-journal11:00:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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