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2026-03-16 - 17:42
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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 Mon Mar 16, 2026 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5476672267179,28sleep10-21swapper/107:09:321
5475882258186,27sleep00-21swapper/007:08:420
179699730,3rtkit-daemon1795-21rtkit-daemon10:32:551
179699720,2rtkit-daemon1795-21rtkit-daemon10:23:161
179699690,4rtkit-daemon1795-21rtkit-daemon08:03:230
179699640,3rtkit-daemon1795-21rtkit-daemon10:15:161
6630452620,5sleep00-21swapper/010:42:480
179699580,24rtkit-daemon620723-21sh09:43:311
179699520,4rtkit-daemon1795-21rtkit-daemon07:30:481
179699500,3rtkit-daemon1795-21rtkit-daemon08:33:310
179699490,4rtkit-daemon1795-21rtkit-daemon07:42:381
179699480,4rtkit-daemon1795-21rtkit-daemon09:18:541
179699480,4rtkit-daemon1795-21rtkit-daemon07:51:171
179699450,3rtkit-daemon1795-21rtkit-daemon09:50:201
179699440,3rtkit-daemon1795-21rtkit-daemon10:00:591
179699400,3rtkit-daemon0-21swapper/111:24:241
179699380,3rtkit-daemon0-21swapper/009:51:260
179699370,3rtkit-daemon0-21swapper/111:05:331
179699360,4rtkit-daemon1795-21rtkit-daemon09:47:270
179699360,3rtkit-daemon0-21swapper/009:31:031
179699350,4rtkit-daemon1795-21rtkit-daemon11:47:410
179699350,4rtkit-daemon1795-21rtkit-daemon11:47:410
179699350,4rtkit-daemon1795-21rtkit-daemon10:21:580
179699350,4rtkit-daemon1795-21rtkit-daemon10:12:280
179699350,3rtkit-daemon0-21swapper/011:59:370
547845993426,6cyclictest704092-21tune2fs11:40:191
547841993412,8cyclictest13-21ksoftirqd/010:00:210
179699340,4rtkit-daemon714763-21munin-node11:55:101
179699340,3rtkit-daemon0-21swapper/011:50:571
6383372330,4sleep10-21swapper/110:07:411
179699330,4rtkit-daemon1795-21rtkit-daemon10:15:360
179699330,4rtkit-daemon1795-21rtkit-daemon07:58:260
179699330,3rtkit-daemon0-21swapper/110:51:000
179699330,3rtkit-daemon0-21swapper/110:48:080
179699330,3rtkit-daemon0-21swapper/109:17:230
179699330,3rtkit-daemon0-21swapper/107:52:210
179699330,3rtkit-daemon0-21swapper/009:36:371
179699320,4rtkit-daemon1795-21rtkit-daemon08:59:550
179699320,4rtkit-daemon1795-21rtkit-daemon08:48:410
179699320,3rtkit-daemon1795-21rtkit-daemon10:54:091
179699320,3rtkit-daemon0-21swapper/109:08:220
179699320,3rtkit-daemon0-21swapper/107:42:310
179699320,3rtkit-daemon0-21swapper/009:01:131
179699320,2rtkit-daemon0-21swapper/010:11:541
547841993113,4cyclictest13-21ksoftirqd/009:33:310
547841993113,3cyclictest13-21ksoftirqd/010:56:310
179699310,4rtkit-daemon1795-21rtkit-daemon11:50:000
179699310,3rtkit-daemon1795-21rtkit-daemon11:44:370
179699310,3rtkit-daemon1795-21rtkit-daemon10:33:470
179699310,3rtkit-daemon1795-21rtkit-daemon08:52:000
179699310,3rtkit-daemon1795-21rtkit-daemon08:38:500
179699310,3rtkit-daemon0-21swapper/112:30:501
179699310,3rtkit-daemon0-21swapper/111:24:300
179699310,3rtkit-daemon0-21swapper/008:56:461
179699310,3rtkit-daemon0-21swapper/007:55:421
547841993025,3cyclictest637363-21ssh10:05:390
179699300,4rtkit-daemon1795-21rtkit-daemon07:26:070
179699290,3rtkit-daemon1795-21rtkit-daemon07:49:331
179699290,3rtkit-daemon0-21swapper/111:34:430
179699290,3rtkit-daemon0-21swapper/107:47:340
179699290,3rtkit-daemon0-21swapper/107:35:380
179699290,3rtkit-daemon0-21swapper/107:35:370
179699290,3rtkit-daemon0-21swapper/008:38:361
179699290,3rtkit-daemon0-21swapper/007:10:061
179699290,24rtkit-daemon893-21snmpd07:20:210
7370412280,4chrt0-21swapper/112:25:191
54784199287,6cyclictest13-21ksoftirqd/012:35:010
547841992813,3cyclictest13-21ksoftirqd/012:25:000
54784199281,20cyclictest713928-1kworker/u9:112:25:130
547841992811,3cyclictest13-21ksoftirqd/011:11:360
547841992810,7cyclictest13-21ksoftirqd/011:07:500
179699280,3rtkit-daemon1795-21rtkit-daemon07:10:390
179699280,3rtkit-daemon0-21swapper/111:18:390
179699280,3rtkit-daemon0-21swapper/107:31:010
179699280,3rtkit-daemon0-21swapper/008:12:001
179699280,2rtkit-daemon1795-21rtkit-daemon10:41:401
6935382270,7sleep0692741-21/usr/sbin/munin11:25:220
54784599270,6cyclictest0-21swapper/112:09:211
54784599270,6cyclictest0-21swapper/109:13:481
54784199279,4cyclictest13-21ksoftirqd/012:13:310
54784199279,4cyclictest13-21ksoftirqd/009:13:370
54784199278,4cyclictest13-21ksoftirqd/011:38:510
547841992723,3cyclictest66950irq/132-enp2s008:06:570
547841992713,3cyclictest13-21ksoftirqd/008:15:220
547841992711,2cyclictest141rcu_preempt09:57:500
179699270,3rtkit-daemon0-21swapper/008:43:541
547845992624,1cyclictest66950irq/132-enp2s012:20:201
547845992611,9cyclictest658919-1kworker/u9:010:55:121
547845992611,10cyclictest587815-21apt-get08:50:131
54784599260,6cyclictest0-21swapper/112:10:071
54784599260,6cyclictest0-21swapper/111:33:311
54784199269,3cyclictest13-21ksoftirqd/010:35:520
54784199266,3cyclictest13-21ksoftirqd/009:04:310
54784199263,7cyclictest13-21ksoftirqd/012:17:030
547841992613,3cyclictest13-21ksoftirqd/012:35:210
547845992516,7cyclictest595907-21wc09:10:011
547845992515,7cyclictest60633450ssh09:23:371
54784599251,22cyclictest729690-21fschecks_count12:15:181
54784599250,6cyclictest0-21swapper/112:01:511
54784599250,6cyclictest0-21swapper/108:08:361
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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