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2026-06-10 - 07:58
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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 Wed Jun 10, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
38139492316274,28sleep10-21swapper/119:09:021
38139182258194,43sleep00-21swapper/019:08:420
179699560,5rtkit-daemon1795-21rtkit-daemon22:57:351
179699540,4rtkit-daemon1795-21rtkit-daemon21:59:281
179699510,4rtkit-daemon1795-21rtkit-daemon21:20:021
179699510,4rtkit-daemon1795-21rtkit-daemon20:10:151
179699500,4rtkit-daemon1795-21rtkit-daemon22:20:491
179699500,4rtkit-daemon1795-21rtkit-daemon00:36:181
179699490,4rtkit-daemon1795-21rtkit-daemon22:03:330
179699470,4rtkit-daemon1795-21rtkit-daemon20:53:231
39633692460,1chrt3963368-21/usr/sbin/munin23:25:220
39466822410,3sleep10-21swapper/123:02:541
39441902400,3sleep00-21swapper/023:00:100
179699390,9rtkit-daemon3902661-21ssh22:03:401
179699390,3rtkit-daemon1795-21rtkit-daemon21:15:181
38626502370,2sleep013-21ksoftirqd/021:10:070
3814175993735,1cyclictest0-21swapper/121:54:551
179699360,4rtkit-daemon1795-21rtkit-daemon23:38:041
179699360,4rtkit-daemon1795-21rtkit-daemon22:32:211
381417599359,5cyclictest26-21ksoftirqd/123:15:261
3814175993532,2cyclictest4008567-21latency_hist00:30:011
179699350,4rtkit-daemon1795-21rtkit-daemon21:01:011
179699350,3rtkit-daemon0-21swapper/123:09:291
179699350,3rtkit-daemon0-21swapper/121:12:271
179699350,3rtkit-daemon0-21swapper/121:08:250
179699350,3rtkit-daemon0-21swapper/119:38:451
179699340,4rtkit-daemon1795-21rtkit-daemon22:08:050
179699340,3rtkit-daemon0-21swapper/121:03:090
179699330,7rtkit-daemon893-21snmpd22:19:400
179699330,4rtkit-daemon1795-21rtkit-daemon23:41:141
179699330,4rtkit-daemon1795-21rtkit-daemon23:20:340
179699330,4rtkit-daemon1795-21rtkit-daemon22:14:250
179699330,4rtkit-daemon1795-21rtkit-daemon19:22:021
179699330,3rtkit-daemon1795-21rtkit-daemon22:37:201
179699330,3rtkit-daemon1795-21rtkit-daemon20:45:241
179699330,3rtkit-daemon0-21swapper/120:31:530
179699330,3rtkit-daemon0-21swapper/119:17:550
179699330,3rtkit-daemon0-21swapper/021:37:171
3814175993229,2cyclictest66950irq/132-enp2s000:08:161
179699320,4rtkit-daemon4008324-21ssh00:29:380
179699320,4rtkit-daemon3862423-21diskmemload23:12:360
179699320,4rtkit-daemon1795-21rtkit-daemon21:43:460
179699320,3rtkit-daemon0-21swapper/122:39:560
179699320,3rtkit-daemon0-21swapper/120:17:240
179699320,3rtkit-daemon0-21swapper/120:10:210
179699320,3rtkit-daemon0-21swapper/119:35:190
179699320,3rtkit-daemon0-21swapper/100:03:110
179699320,3rtkit-daemon0-21swapper/023:26:081
179699320,3rtkit-daemon0-21swapper/023:24:441
179699310,5rtkit-daemon3816234-21munin-node23:36:430
179699310,3rtkit-daemon1795-21rtkit-daemon19:46:431
179699310,3rtkit-daemon0-21swapper/120:35:200
179699310,3rtkit-daemon0-21swapper/119:26:110
179699310,3rtkit-daemon0-21swapper/100:05:410
179699310,3rtkit-daemon0-21swapper/020:07:351
39425772300,25sleep03862423-21diskmemload22:56:450
381417599303,22cyclictest3918060-21apt-get22:25:131
179699300,4rtkit-daemon1795-21rtkit-daemon20:06:360
179699300,4rtkit-daemon1795-21rtkit-daemon00:10:490
179699300,3rtkit-daemon1795-21rtkit-daemon21:37:030
179699300,3rtkit-daemon1795-21rtkit-daemon19:58:050
179699300,3rtkit-daemon1795-21rtkit-daemon19:44:411
179699300,3rtkit-daemon1795-21rtkit-daemon19:25:351
179699300,3rtkit-daemon1795-21rtkit-daemon19:19:411
179699300,3rtkit-daemon0-21swapper/022:11:341
179699290,3rtkit-daemon0-21swapper/123:50:500
179699290,3rtkit-daemon0-21swapper/123:30:350
179699290,3rtkit-daemon0-21swapper/121:20:220
179699290,3rtkit-daemon0-21swapper/121:16:070
179699290,3rtkit-daemon0-21swapper/119:20:170
179699290,3rtkit-daemon0-21swapper/100:16:570
179699290,3rtkit-daemon0-21swapper/021:41:311
381417599287,4cyclictest26-21ksoftirqd/122:50:081
381417599286,6cyclictest0-21swapper/122:49:121
381417599282,19cyclictest3928932-21apt-get22:40:131
381417599282,19cyclictest3928932-21apt-get22:40:131
3814175992814,3cyclictest26-21ksoftirqd/100:00:011
179699280,3rtkit-daemon0-21swapper/122:32:280
179699280,3rtkit-daemon0-21swapper/100:32:320
179699280,19rtkit-daemon3966315-21/usr/sbin/munin23:30:151
179699270,3rtkit-daemon0-21swapper/122:54:240
179699270,3rtkit-daemon0-21swapper/122:23:170
179699270,3rtkit-daemon0-21swapper/121:59:420
179699270,3rtkit-daemon0-21swapper/100:24:010
179699270,21rtkit-daemon890-21lldpd19:10:421
381417599265,2cyclictest141rcu_preempt21:47:051
381417599262,20cyclictest3862423-21diskmemload00:30:121
3814175992618,6cyclictest26-21ksoftirqd/120:40:021
3814171992611,10cyclictest3984280-21apt-get23:55:160
381417199260,6cyclictest0-21swapper/023:16:510
381417199260,6cyclictest0-21swapper/022:46:110
179699260,3rtkit-daemon0-21swapper/119:46:560
179699260,3rtkit-daemon0-21swapper/020:23:231
179699260,21rtkit-daemon3814162-21cyclictest20:56:360
381417599259,4cyclictest38497272grep20:35:261
381417599257,9cyclictest39877771rm00:00:031
381417599257,4cyclictest26-21ksoftirqd/123:10:381
381417599255,2cyclictest141rcu_preempt00:21:191
3814175992511,2cyclictest141rcu_preempt23:48:121
381417199252,16cyclictest3844627-21apt-get20:25:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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