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2025-11-29 - 03:31
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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 rackcslot4.osadl.org (updated Sat Nov 29, 2025 00:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22577952269187,28sleep00-21swapper/019:06:150
22577902264182,19sleep10-21swapper/119:06:121
125899650,3rtkit-daemon1257-21rtkit-daemon00:05:221
23281432620,4sleep12328135-21cron21:40:011
125899620,5rtkit-daemon2391909-21ntp_states23:10:231
125899590,4rtkit-daemon1257-21rtkit-daemon23:01:360
125899570,5rtkit-daemon1257-21rtkit-daemon22:39:231
22818992560,4sleep0161rcuc/020:05:220
125899560,4rtkit-daemon1257-21rtkit-daemon22:55:421
125899550,4rtkit-daemon1257-21rtkit-daemon23:59:511
125899540,3rtkit-daemon1257-21rtkit-daemon23:20:241
125899520,4rtkit-daemon1257-21rtkit-daemon23:46:311
125899510,4rtkit-daemon1257-21rtkit-daemon20:25:331
125899510,19rtkit-daemon1257-21rtkit-daemon23:06:181
24391152500,4sleep00-21swapper/000:19:070
23649762500,7sleep0161rcuc/022:31:150
125899500,3rtkit-daemon1257-21rtkit-daemon19:19:301
125899500,3rtkit-daemon0-21swapper/019:21:201
125899500,19rtkit-daemon0-21swapper/022:23:371
125899500,19rtkit-daemon0-21swapper/022:23:371
125899490,3rtkit-daemon1257-21rtkit-daemon20:44:221
125899490,17rtkit-daemon1257-21rtkit-daemon23:33:171
125899480,3rtkit-daemon1257-21rtkit-daemon22:42:030
125899480,17rtkit-daemon2373459-21latency_hist22:45:011
125899470,4rtkit-daemon0-21swapper/122:02:400
125899460,3rtkit-daemon1257-21rtkit-daemon19:58:230
125899440,18rtkit-daemon1257-21rtkit-daemon23:41:301
125899430,3rtkit-daemon1257-21rtkit-daemon00:23:500
125899430,14rtkit-daemon0-21swapper/022:50:221
125899430,14rtkit-daemon0-21swapper/022:49:171
24037702420,3sleep00-21swapper/023:26:170
125899390,3rtkit-daemon0-21swapper/121:50:111
125899380,3rtkit-daemon0-21swapper/121:59:391
125899380,3rtkit-daemon0-21swapper/119:35:531
125899380,3rtkit-daemon0-21swapper/100:18:231
125899370,3rtkit-daemon0-21swapper/123:36:361
125899370,3rtkit-daemon0-21swapper/120:32:171
125899360,4rtkit-daemon1257-21rtkit-daemon22:03:431
125899360,4rtkit-daemon1257-21rtkit-daemon21:45:371
125899360,3rtkit-daemon0-21swapper/122:32:401
125899360,3rtkit-daemon0-21swapper/122:25:211
125899360,3rtkit-daemon0-21swapper/122:12:470
125899350,4rtkit-daemon1257-21rtkit-daemon22:19:591
125899350,3rtkit-daemon0-21swapper/123:38:410
125899350,3rtkit-daemon0-21swapper/121:32:331
2258253993431,2cyclictest2305929-21kworker/0:021:23:000
125899340,4rtkit-daemon1257-21rtkit-daemon22:46:560
125899340,3rtkit-daemon0-21swapper/121:50:310
125899340,3rtkit-daemon0-21swapper/023:16:111
2258258993327,3cyclictest63750irq/132-enp2s000:12:141
125899330,5rtkit-daemon1257-21rtkit-daemon22:38:420
125899330,4rtkit-daemon1257-21rtkit-daemon22:56:020
125899330,3rtkit-daemon0-21swapper/120:32:250
225825899321,11cyclictest2443626-21diskstats00:25:181
125899320,3rtkit-daemon0-21swapper/123:06:400
125899320,3rtkit-daemon0-21swapper/119:33:290
125899320,3rtkit-daemon0-21swapper/019:40:401
125899320,28rtkit-daemon26-21ksoftirqd/100:24:321
2258258993126,3cyclictest26-21ksoftirqd/120:50:001
125899310,4rtkit-daemon1257-21rtkit-daemon21:28:330
125899310,3rtkit-daemon0-21swapper/122:29:430
125899310,3rtkit-daemon0-21swapper/023:02:031
22741432300,4sleep10-21swapper/119:45:241
125899300,3rtkit-daemon1257-21rtkit-daemon19:26:470
125899300,3rtkit-daemon0-21swapper/119:37:400
125899300,3rtkit-daemon0-21swapper/100:11:360
125899290,4rtkit-daemon1257-21rtkit-daemon00:33:031
125899290,3rtkit-daemon1257-21rtkit-daemon20:59:570
125899290,3rtkit-daemon1257-21rtkit-daemon20:18:160
125899290,3rtkit-daemon0-21swapper/121:46:210
125899290,3rtkit-daemon0-21swapper/121:19:210
125899290,3rtkit-daemon0-21swapper/121:09:080
225825899284,15cyclictest2279032-21apt-get20:00:131
2258258992812,10cyclictest2341721-1kworker/u9:122:10:141
2258253992822,4cyclictest2379955-21rm22:53:480
2258253992813,3cyclictest2419721-21sh23:50:000
125899280,3rtkit-daemon0-21swapper/120:23:110
125899280,3rtkit-daemon0-21swapper/020:07:521
125899280,23rtkit-daemon0-21swapper/119:55:151
225825899278,16cyclictest26-21ksoftirqd/123:25:141
2258258992713,8cyclictest63750irq/132-enp2s000:35:131
125899270,3rtkit-daemon0-21swapper/123:11:130
125899270,23rtkit-daemon685-21irqbalance20:16:201
2258258992611,4cyclictest26-21ksoftirqd/121:21:091
2258258992610,10cyclictest2426931-21apt-get00:00:141
225825899260,7cyclictest0-21swapper/121:26:191
225825399263,16cyclictest2321189-21apt-get21:30:120
2258253992610,10cyclictest2275062-21apt-get19:50:150
225825399260,6cyclictest0-21swapper/023:34:370
125899260,3rtkit-daemon0-21swapper/119:42:360
125899260,21rtkit-daemon1293559-21ntpd20:21:451
125899260,1rtkit-daemon1257-21rtkit-daemon23:20:520
125899260,1rtkit-daemon1257-21rtkit-daemon00:25:150
225825899252,16cyclictest2310556-21apt-get21:15:131
2258258992518,5cyclictest26-21ksoftirqd/119:15:011
2258258992512,8cyclictest26-21ksoftirqd/121:10:121
225825899250,6cyclictest0-21swapper/123:52:241
2258253992522,2cyclictest63750irq/132-enp2s021:39:110
2258253992511,9cyclictest2438760-1kworker/u9:000:30:140
225825399250,11cyclictest2420811-21/usr/sbin/munin23:50:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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