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2026-07-04 - 03:34
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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 Jul 04, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29889302275234,27sleep10-21swapper/119:08:561
29886392252184,51sleep00-21swapper/019:05:520
299876021550,4sleep0161rcuc/019:30:210
31254832570,4sleep10-21swapper/123:01:271
179699540,4rtkit-daemon1795-21rtkit-daemon00:19:221
179699530,4rtkit-daemon1795-21rtkit-daemon19:26:160
179699510,4rtkit-daemon1795-21rtkit-daemon19:36:220
179699500,8rtkit-daemon0-21swapper/022:45:460
179699500,3rtkit-daemon1795-21rtkit-daemon21:00:300
179699490,4rtkit-daemon1795-21rtkit-daemon23:00:260
179699490,3rtkit-daemon1795-21rtkit-daemon20:29:520
179699480,4rtkit-daemon1795-21rtkit-daemon22:44:360
30558472450,34sleep13055855-21ssh21:31:261
30988112400,2sleep00-21swapper/022:26:590
298917399401,19cyclictest13-21ksoftirqd/023:15:120
179699400,6rtkit-daemon3021406-21cron20:29:591
179699400,3rtkit-daemon1795-21rtkit-daemon22:38:551
179699390,4rtkit-daemon3037893-21diskmemload22:59:210
179699390,3rtkit-daemon0-21swapper/021:59:090
179699390,3rtkit-daemon0-21swapper/021:47:010
179699390,3rtkit-daemon0-21swapper/021:14:010
179699380,8rtkit-daemon892-21thermald23:16:491
179699380,5rtkit-daemon3148253-21taskset23:31:081
179699380,3rtkit-daemon0-21swapper/022:38:310
179699370,3rtkit-daemon0-21swapper/021:53:010
179699370,3rtkit-daemon0-21swapper/021:33:080
179699360,5rtkit-daemon1795-21rtkit-daemon00:05:110
179699360,3rtkit-daemon1795-21rtkit-daemon23:20:151
179699360,3rtkit-daemon0-21swapper/020:00:070
179699360,3rtkit-daemon0-21swapper/019:20:320
179699350,4rtkit-daemon1795-21rtkit-daemon20:17:551
179699350,3rtkit-daemon0-21swapper/023:06:570
179699350,3rtkit-daemon0-21swapper/020:24:430
179699350,3rtkit-daemon0-21swapper/019:55:521
179699350,3rtkit-daemon0-21swapper/019:43:420
179699350,3rtkit-daemon0-21swapper/019:19:550
31639982340,11sleep126-21ksoftirqd/123:51:561
2989173993427,5cyclictest3029733-21sed20:50:010
179699340,4rtkit-daemon1795-21rtkit-daemon20:43:330
179699340,4rtkit-daemon1795-21rtkit-daemon00:00:590
179699340,3rtkit-daemon1795-21rtkit-daemon23:47:541
179699340,3rtkit-daemon0-21swapper/120:39:130
179699340,3rtkit-daemon0-21swapper/100:21:340
179699340,3rtkit-daemon0-21swapper/022:25:401
179699340,3rtkit-daemon0-21swapper/021:01:301
179699340,3rtkit-daemon0-21swapper/020:52:131
179699330,4rtkit-daemon1795-21rtkit-daemon22:02:330
179699330,3rtkit-daemon1795-21rtkit-daemon22:40:061
179699330,3rtkit-daemon1795-21rtkit-daemon00:11:000
179699330,3rtkit-daemon0-21swapper/121:26:090
179699330,3rtkit-daemon0-21swapper/120:53:390
179699330,3rtkit-daemon0-21swapper/023:10:141
179699330,3rtkit-daemon0-21swapper/022:04:381
179699330,3rtkit-daemon0-21swapper/021:45:351
179699320,5rtkit-daemon0-21swapper/022:20:240
179699320,4rtkit-daemon1795-21rtkit-daemon22:08:561
179699320,4rtkit-daemon1795-21rtkit-daemon21:07:300
179699320,3rtkit-daemon1795-21rtkit-daemon22:34:271
179699320,3rtkit-daemon1795-21rtkit-daemon21:27:531
179699320,3rtkit-daemon1795-21rtkit-daemon00:30:321
179699320,3rtkit-daemon0-21swapper/120:17:040
179699320,3rtkit-daemon0-21swapper/100:29:260
179699320,3rtkit-daemon0-21swapper/023:05:271
179699320,3rtkit-daemon0-21swapper/021:15:251
179699320,3rtkit-daemon0-21swapper/020:00:261
179699320,3rtkit-daemon0-21swapper/000:36:081
298917399311,11cyclictest31605012ssh23:47:320
179699310,3rtkit-daemon0-21swapper/022:55:431
179699310,3rtkit-daemon0-21swapper/019:37:581
179699310,3rtkit-daemon0-21swapper/000:02:091
2989178993026,2cyclictest3008873-21kworker/1:020:07:041
179699300,4rtkit-daemon1795-21rtkit-daemon00:15:280
179699300,3rtkit-daemon1795-21rtkit-daemon22:17:041
179699300,3rtkit-daemon0-21swapper/123:32:310
179699300,3rtkit-daemon0-21swapper/122:50:360
179699300,3rtkit-daemon0-21swapper/020:41:491
2989178992920,7cyclictest3061543-21apt-get21:40:111
298917399297,5cyclictest0-21swapper/023:58:380
179699290,4rtkit-daemon1795-21rtkit-daemon21:55:331
298917899281,8cyclictest3085168-21/usr/sbin/munin22:10:191
179699280,3rtkit-daemon0-21swapper/123:53:270
179699280,3rtkit-daemon0-21swapper/020:49:191
179699280,3rtkit-daemon0-21swapper/019:45:551
179699280,3rtkit-daemon0-21swapper/000:09:011
179699280,21rtkit-daemon1795-21rtkit-daemon20:10:131
2989178992711,9cyclictest3001629-21apt-get19:40:141
179699270,3rtkit-daemon0-21swapper/019:26:591
179699270,21rtkit-daemon2989168-21cyclictest21:39:491
179699270,21rtkit-daemon2989168-21cyclictest20:57:261
179699270,1rtkit-daemon1795-21rtkit-daemon19:45:140
2989178992612,8cyclictest3150424-21apt-get23:35:131
298917399267,12cyclictest3138935-21apt-get23:20:130
2989173992622,2cyclictest3132956-21sh23:11:010
179699260,3rtkit-daemon0-21swapper/019:51:221
179699260,20rtkit-daemon2989168-21cyclictest19:22:101
31145672250,1sleep10-21swapper/122:48:041
2989178992521,2cyclictest3168417-21ssh23:58:191
298917899251,21cyclictest3191961-21python300:30:011
2989178992510,9cyclictest3154351-21apt-get23:40:131
298917399252,7cyclictest3192585-21apt-get00:30:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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