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2026-07-03 - 04:12
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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 Fri Jul 03, 2026 00:45:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
179112217152,52sleep20-21swapper/219:09:402
177352207157,24sleep00-21swapper/019:07:210
179152200161,26sleep10-21swapper/119:09:421
179292199160,26sleep30-21swapper/319:09:523
305932750,0sleep10-21swapper/122:20:131
72272570,0sleep30-21swapper/321:00:173
18025991817,1cyclictest35-21ksoftirqd/319:17:433
225372160,0sleep30-21swapper/322:09:053
1802099130,12cyclictest0-21swapper/223:40:122
1801299120,12cyclictest0-21swapper/123:40:111
18025991110,1cyclictest35-21ksoftirqd/320:10:003
1802099110,5cyclictest28552-21/usr/sbin/munin23:00:232
1801299110,11cyclictest0-21swapper/119:24:181
1801299110,0cyclictest0-21swapper/122:57:011
1801299110,0cyclictest0-21swapper/119:46:421
1802599109,1cyclictest35-21ksoftirqd/323:28:113
1802599108,1cyclictest35-21ksoftirqd/320:19:593
1802599108,1cyclictest10672-21diskmemload22:19:173
1802599107,1cyclictest35-21ksoftirqd/320:40:013
1802599100,3cyclictest8889-21ssh22:35:093
1802099107,1cyclictest28-21ksoftirqd/219:40:012
1802099100,2cyclictest0-21swapper/219:55:102
1802099100,10cyclictest0-21swapper/221:18:232
1801199102,4cyclictest9127-21perf23:19:590
1801199102,4cyclictest12753-21perf23:25:000
1801199102,4cyclictest10113-21cat20:00:000
20155290,1sleep10-21swapper/100:18:571
180259991,6cyclictest0-21swapper/323:35:143
180129990,8cyclictest0-21swapper/123:50:091
180129990,8cyclictest0-21swapper/123:11:291
180129990,8cyclictest0-21swapper/121:26:221
180129990,8cyclictest0-21swapper/100:00:261
180119999,0cyclictest10672-21diskmemload22:53:040
180119996,2cyclictest10672-21diskmemload00:06:140
180119990,7cyclictest0-21swapper/019:50:130
180119990,6cyclictest0-21swapper/021:20:130
1093290,2sleep30-21swapper/300:35:263
32269280,1sleep232271-21grep20:45:152
180259986,1cyclictest1747-21ntpd21:55:583
180259980,7cyclictest10672-21diskmemload00:00:113
180259980,2cyclictest0-21swapper/319:55:113
180259980,1cyclictest0-21swapper/319:10:133
180209987,1cyclictest20380-21munin-node23:52:042
180209986,1cyclictest61650irq/122-eno120:05:112
180209986,1cyclictest61650irq/122-eno100:05:492
180209985,1cyclictest28-21ksoftirqd/220:35:012
180209982,4cyclictest61650irq/122-eno122:37:492
180209982,3cyclictest31718-21apt-get00:35:112
180209980,8cyclictest0-21swapper/222:02:252
180209980,6cyclictest29982-21kworker/u8:221:55:382
180209980,1cyclictest0-21swapper/220:10:102
180209980,1cyclictest0-21swapper/219:20:122
180129980,8cyclictest0-21swapper/123:59:081
180129980,8cyclictest0-21swapper/123:30:181
180129980,8cyclictest0-21swapper/123:29:501
180129980,8cyclictest0-21swapper/123:07:311
180129980,8cyclictest0-21swapper/122:18:461
180129980,8cyclictest0-21swapper/122:03:321
180129980,8cyclictest0-21swapper/121:55:451
180129980,8cyclictest0-21swapper/121:53:461
180129980,8cyclictest0-21swapper/121:15:011
180129980,8cyclictest0-21swapper/100:30:511
180129980,8cyclictest0-21swapper/100:22:181
180129980,8cyclictest0-21swapper/100:14:221
180129980,8cyclictest0-21swapper/100:08:271
180129980,7cyclictest0-21swapper/123:15:481
180129980,7cyclictest0-21swapper/121:40:231
180129980,7cyclictest0-21swapper/121:20:501
180129980,7cyclictest0-21swapper/100:38:221
180119986,1cyclictest10672-21diskmemload00:22:030
180119984,2cyclictest240-21systemd-journal21:40:000
180119983,4cyclictest0-21swapper/021:30:120
180119981,1cyclictest13505-21ssh00:10:030
180119980,7cyclictest7354-21ssh21:47:580
180119980,4cyclictest733-21sshd21:13:440
180119980,4cyclictest30176-21latency_hist22:20:010
180119980,3cyclictest0-21swapper/020:45:110
180119980,2cyclictest240-21systemd-journal20:59:520
180259977,0cyclictest0-21swapper/321:50:123
180259976,1cyclictest1747-21ntpd22:55:593
180259975,1cyclictest5731-21apt-get23:15:133
180259975,1cyclictest4377-21ssh22:28:153
180259975,1cyclictest35-21ksoftirqd/320:04:593
180259975,1cyclictest32362-21ssh22:20:493
180259975,1cyclictest25992-21ssh23:40:363
180259975,1cyclictest12827-21ssh21:10:543
180259975,0cyclictest10672-21diskmemload21:24:243
180259974,2cyclictest0-21swapper/321:40:303
180259974,1cyclictest240-21systemd-journal20:46:363
180259971,4cyclictest26001-21apt-get19:25:113
180259971,1cyclictest8549-21apt-get21:05:123
180259970,6cyclictest10672-21diskmemload23:55:443
180259970,4cyclictest15827-21/usr/sbin/munin22:00:143
180259970,4cyclictest10672-21diskmemload22:10:103
180259970,3cyclictest0-21swapper/323:33:233
180259970,3cyclictest0-21swapper/300:25:353
180259970,3cyclictest0-21swapper/300:05:123
180259970,2cyclictest0-21swapper/321:47:383
180259970,1cyclictest6382-21/usr/sbin/munin22:30:173
180209976,1cyclictest61650irq/122-eno123:05:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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