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2026-04-11 - 14:09
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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 Apr 11, 2026 12:45:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
170842214164,24sleep00-21swapper/007:09:380
168362213149,41sleep30-21swapper/307:06:233
169692212161,25sleep20-21swapper/207:08:062
168762201146,21sleep10-21swapper/107:06:521
3121621100,0sleep10-21swapper/112:25:131
284722590,1sleep3341rcuc/311:39:573
190432170,0sleep10-21swapper/111:25:211
17194991412,1cyclictest28-21ksoftirqd/208:20:002
157852100,0sleep10-21swapper/112:05:141
172029997,1cyclictest35-21ksoftirqd/309:00:013
172029997,1cyclictest24922-21ssh12:15:333
171949999,0cyclictest0-21swapper/210:24:232
171949997,1cyclictest28-21ksoftirqd/210:00:002
171949990,8cyclictest0-21swapper/209:51:192
171899997,1cyclictest9-21ksoftirqd/007:15:500
171899995,1cyclictest294-21systemd-udevd10:27:080
171899990,4cyclictest20490-21perf10:05:000
171899990,1cyclictest240-21systemd-journal12:35:160
172029986,1cyclictest35-21ksoftirqd/311:30:223
172029980,6cyclictest125332sleep311:17:593
172029980,0cyclictest0-21swapper/307:40:123
171949987,1cyclictest28-21ksoftirqd/210:05:002
171949986,1cyclictest61650irq/122-eno111:46:592
171949986,1cyclictest61650irq/122-eno111:24:282
171949986,1cyclictest61650irq/122-eno109:41:342
171949986,1cyclictest61650irq/122-eno109:25:142
171949986,1cyclictest28-21ksoftirqd/207:19:592
171949986,1cyclictest23401-21perf08:29:592
171949986,1cyclictest10691-21cat11:15:152
171949981,6cyclictest6998-21kworker/u8:211:11:412
171949980,5cyclictest30812-21/usr/sbin/munin11:00:242
171949980,3cyclictest1747-21ntpd09:35:272
171909981,4cyclictest0-21swapper/110:30:121
171909980,4cyclictest0-21swapper/112:00:381
171899987,1cyclictest9-21ksoftirqd/011:49:280
171899987,1cyclictest9-21ksoftirqd/009:05:110
171899987,0cyclictest9889-21diskmemload12:06:570
171899986,1cyclictest9889-21diskmemload10:52:490
171899986,1cyclictest27735-21ssh10:14:150
171899984,3cyclictest9889-21diskmemload09:30:480
171899983,2cyclictest240-21systemd-journal10:31:280
171899981,6cyclictest26805-1kworker/u9:112:15:130
171899981,3cyclictest1432-21perf09:40:000
171899980,7cyclictest21834-21ssh09:24:430
171899980,6cyclictest548-21systemd-logind12:00:180
171899980,4cyclictest22795-21perf12:15:010
171899980,1cyclictest23324-21ssh11:31:150
172029976,1cyclictest35-21ksoftirqd/308:05:003
172029975,1cyclictest35-21ksoftirqd/308:18:503
172029974,3cyclictest569-21nscd09:42:103
172029974,1cyclictest569-21nscd12:13:193
172029974,1cyclictest240-21systemd-journal09:50:003
172029971,4cyclictest0-21swapper/309:59:243
172029970,5cyclictest0-21swapper/308:31:493
171949977,0cyclictest245432sleep211:34:362
171949977,0cyclictest0-21swapper/209:33:342
171949976,1cyclictest61650irq/122-eno112:20:432
171949976,1cyclictest61650irq/122-eno111:40:132
171949976,1cyclictest61650irq/122-eno110:49:402
171949976,1cyclictest61650irq/122-eno110:49:402
171949976,1cyclictest61650irq/122-eno109:23:332
171949976,1cyclictest61650irq/122-eno109:15:112
171949975,1cyclictest61650irq/122-eno112:25:092
171949975,1cyclictest61650irq/122-eno111:05:462
171949975,1cyclictest61650irq/122-eno110:35:122
171949975,1cyclictest61650irq/122-eno110:25:192
171949975,1cyclictest61650irq/122-eno107:25:152
171949975,1cyclictest28-21ksoftirqd/208:40:002
171949974,2cyclictest19611-21fschecks_time08:20:162
171949974,1cyclictest240-21systemd-journal10:19:592
171949974,1cyclictest240-21systemd-journal07:40:002
171949973,2cyclictest240-21systemd-journal12:04:592
171949973,2cyclictest240-21systemd-journal10:11:282
171949972,3cyclictest2093-21apt-get12:30:112
171949972,3cyclictest2093-21apt-get12:30:112
171949971,5cyclictest19558-21munin-node11:58:152
171949971,4cyclictest32259-21apt-get07:40:112
171949970,6cyclictest0-21swapper/212:35:122
171949970,6cyclictest0-21swapper/212:17:532
171949970,5cyclictest0-21swapper/209:12:212
171949970,3cyclictest4322-21munin-run07:50:002
171949970,2cyclictest0-21swapper/207:10:112
171909970,5cyclictest0-21swapper/110:21:391
171909970,5cyclictest0-21swapper/110:18:371
171909970,5cyclictest0-21swapper/109:38:011
171909970,4cyclictest0-21swapper/109:31:241
171909970,4cyclictest0-21swapper/109:15:121
171909970,1cyclictest0-21swapper/111:50:121
171899976,1cyclictest31897-21ssh12:25:170
171899974,1cyclictest9889-21diskmemload09:40:500
171899973,1cyclictest11624-21/usr/sbin/munin08:05:210
171899973,0cyclictest0-21swapper/009:00:120
171899972,3cyclictest27534-21apt-get07:30:110
171899971,1cyclictest12140-21ssh11:16:540
171899970,7cyclictest9001-21ssh09:50:000
171899970,6cyclictest989-21cstates08:50:140
171899970,6cyclictest5075-21ssh12:33:380
171899970,6cyclictest5075-21ssh12:33:380
171899970,6cyclictest25182-21apt07:25:130
171899970,6cyclictest20358-21switchtime08:20:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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