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2025-11-30 - 10:04
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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 Sun Nov 30, 2025 00:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12460262264191,28sleep10-21swapper/119:07:061
12462252256179,28sleep00-21swapper/019:09:130
125899650,7rtkit-daemon1257-21rtkit-daemon21:45:130
125899580,4rtkit-daemon1257-21rtkit-daemon21:38:190
125899540,4rtkit-daemon1257-21rtkit-daemon21:22:341
125899540,4rtkit-daemon1257-21rtkit-daemon00:24:291
125899490,4rtkit-daemon1257-21rtkit-daemon23:30:420
125899470,4rtkit-daemon1257-21rtkit-daemon19:33:321
125899460,4rtkit-daemon1257-21rtkit-daemon20:18:050
125899450,4rtkit-daemon1257-21rtkit-daemon20:05:090
125899440,3rtkit-daemon0-21swapper/022:25:560
125899400,6rtkit-daemon1310424-21fschecks_time21:30:181
125899390,4rtkit-daemon1295141-21diskmemload22:09:480
14227742381,20sleep11422901-21/usr/sbin/munin00:10:181
125899380,4rtkit-daemon1327026-21ssh21:54:110
125899370,5rtkit-daemon1376080-21ssh23:03:540
125899370,5rtkit-daemon1257-21rtkit-daemon23:56:221
125899360,4rtkit-daemon1347125-21ssh22:21:511
125899360,4rtkit-daemon1257-21rtkit-daemon23:39:071
125899360,3rtkit-daemon0-21swapper/123:01:431
125899360,3rtkit-daemon0-21swapper/100:03:581
125899360,3rtkit-daemon0-21swapper/022:26:441
125899350,4rtkit-daemon1257-21rtkit-daemon22:31:240
125899350,4rtkit-daemon1257-21rtkit-daemon20:50:441
125899350,4rtkit-daemon1257-21rtkit-daemon20:40:301
125899350,4rtkit-daemon1257-21rtkit-daemon00:37:141
125899350,3rtkit-daemon0-21swapper/120:59:491
125899350,3rtkit-daemon0-21swapper/119:23:131
125899350,3rtkit-daemon0-21swapper/119:15:510
1246411993530,2cyclictest63750irq/132-enp2s022:32:591
1246411993512,6cyclictest26-21ksoftirqd/123:05:131
125899340,3rtkit-daemon1257-21rtkit-daemon23:15:100
125899340,3rtkit-daemon1257-21rtkit-daemon23:15:100
125899340,3rtkit-daemon0-21swapper/123:38:450
125899340,3rtkit-daemon0-21swapper/119:24:300
125899340,3rtkit-daemon0-21swapper/100:23:470
125899330,6rtkit-daemon817-21lldpd19:51:500
125899330,6rtkit-daemon1243997-21gmain19:47:030
125899330,4rtkit-daemon1257-21rtkit-daemon20:34:501
125899330,4rtkit-daemon1257-21rtkit-daemon20:01:320
125899330,4rtkit-daemon1257-21rtkit-daemon19:54:451
125899330,4rtkit-daemon0-21swapper/121:07:070
125899330,3rtkit-daemon0-21swapper/123:47:490
125899330,3rtkit-daemon0-21swapper/122:55:540
125899330,3rtkit-daemon0-21swapper/119:55:070
125899330,3rtkit-daemon0-21swapper/100:08:120
125899330,3rtkit-daemon0-21swapper/019:37:051
125899330,2rtkit-daemon1257-21rtkit-daemon22:45:040
1246411993314,6cyclictest26-21ksoftirqd/122:40:121
125899320,6rtkit-daemon849-21snmpd22:11:210
125899320,4rtkit-daemon1257-21rtkit-daemon19:27:121
125899320,4rtkit-daemon1257-21rtkit-daemon00:18:030
125899320,3rtkit-daemon1257-21rtkit-daemon23:43:211
125899320,3rtkit-daemon0-21swapper/120:24:270
125899320,3rtkit-daemon0-21swapper/021:48:561
125899320,3rtkit-daemon0-21swapper/021:43:191
125899320,2rtkit-daemon0-21swapper/121:22:140
124641199329,6cyclictest26-21ksoftirqd/123:50:141
124641199327,2cyclictest141rcu_preempt22:35:061
125899310,4rtkit-daemon1257-21rtkit-daemon22:17:080
125899310,4rtkit-daemon1257-21rtkit-daemon21:57:371
125899310,4rtkit-daemon1257-21rtkit-daemon19:42:051
125899310,4rtkit-daemon0-21swapper/120:37:520
125899310,3rtkit-daemon0-21swapper/123:40:190
125899310,3rtkit-daemon0-21swapper/119:33:530
125899310,3rtkit-daemon0-21swapper/023:22:181
125899310,3rtkit-daemon0-21swapper/020:06:121
125899310,3rtkit-daemon0-21swapper/019:46:051
125899310,27rtkit-daemon1341036-1kworker/u9:122:15:161
1246411993110,3cyclictest26-21ksoftirqd/123:00:011
125899300,3rtkit-daemon0-21swapper/121:30:380
125899300,3rtkit-daemon0-21swapper/120:34:290
125899300,3rtkit-daemon0-21swapper/100:37:580
125899300,3rtkit-daemon0-21swapper/100:26:310
125899300,3rtkit-daemon0-21swapper/022:45:401
124641199308,18cyclictest26-21ksoftirqd/120:40:021
1246411993012,2cyclictest141rcu_preempt23:10:371
1246411993010,2cyclictest141rcu_preempt21:25:151
124641199300,12cyclictest0-21swapper/100:06:211
125899290,3rtkit-daemon0-21swapper/121:29:210
125899290,3rtkit-daemon0-21swapper/121:16:150
125899290,3rtkit-daemon0-21swapper/120:44:010
125899290,3rtkit-daemon0-21swapper/020:17:061
125899290,3rtkit-daemon0-21swapper/020:01:401
125899290,24rtkit-daemon1246402-21cyclictest21:10:160
124641199299,8cyclictest26-21ksoftirqd/100:17:001
124641199291,22cyclictest1338124-21apt-get22:10:111
125899280,3rtkit-daemon0-21swapper/123:52:310
125899280,3rtkit-daemon0-21swapper/123:06:020
125899280,3rtkit-daemon0-21swapper/120:56:590
124641199288,10cyclictest141rcu_preempt20:49:561
1246411992810,11cyclictest1274545-21apt-get20:20:151
124641199280,6cyclictest0-21swapper/121:14:431
125899270,3rtkit-daemon0-21swapper/119:14:260
125899270,22rtkit-daemon1246402-21cyclictest23:29:141
125899270,1rtkit-daemon1257-21rtkit-daemon23:29:550
124641199279,2cyclictest141rcu_preempt22:50:151
124641199273,4cyclictest26-21ksoftirqd/121:54:341
1246411992721,2cyclictest63750irq/132-enp2s023:46:171
1246411992713,8cyclictest1291427-21apt-get21:00:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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