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2026-06-25 - 17:31
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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 Thu Jun 25, 2026 12:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2854362273190,29sleep00-21swapper/007:06:250
2855692269192,27sleep10-21swapper/107:07:521
3534732810,4sleep10-21swapper/109:35:001
179699720,3rtkit-daemon1795-21rtkit-daemon09:59:140
179699690,3rtkit-daemon1795-21rtkit-daemon11:15:290
179699660,3rtkit-daemon1795-21rtkit-daemon11:28:010
179699660,3rtkit-daemon1795-21rtkit-daemon08:42:240
179699640,4rtkit-daemon1795-21rtkit-daemon11:53:010
179699640,3rtkit-daemon1795-21rtkit-daemon08:48:160
179699630,3rtkit-daemon1795-21rtkit-daemon07:41:550
179699580,4rtkit-daemon1795-21rtkit-daemon10:37:210
179699560,26rtkit-daemon893-21snmpd10:25:470
179699540,4rtkit-daemon1795-21rtkit-daemon11:44:060
179699500,4rtkit-daemon1795-21rtkit-daemon12:22:150
179699500,4rtkit-daemon1795-21rtkit-daemon11:48:210
179699500,4rtkit-daemon1795-21rtkit-daemon09:16:560
179699490,4rtkit-daemon1795-21rtkit-daemon12:39:031
179699490,3rtkit-daemon1795-21rtkit-daemon11:58:410
179699490,3rtkit-daemon0-21swapper/010:45:061
179699450,3rtkit-daemon1795-21rtkit-daemon07:48:180
28592399444,9cyclictest334829-21ls09:10:000
28592399423,13cyclictest288650-21appstreamcli07:15:050
28592399416,8cyclictest437060-21apt-get11:30:120
179699410,3rtkit-daemon0-21swapper/010:50:520
179699410,3rtkit-daemon0-21swapper/007:24:020
28592399404,9cyclictest375538-21idleruntime-cro10:05:010
28592399401,8cyclictest345975-21cut09:25:010
179699400,3rtkit-daemon0-21swapper/010:16:500
28592399395,8cyclictest295532-21cut07:30:180
28592399391,8cyclictest462308-21wc12:05:000
179699380,3rtkit-daemon0-21swapper/011:38:080
28592399373,12cyclictest429877-21apt-get11:20:120
28592399372,9cyclictest330961-21latency_hist09:00:000
28592399364,8cyclictest367853-21sed09:55:010
28592399361,7cyclictest415233-21latency_hist11:00:010
28592399361,11cyclictest465766-21latency_hist12:10:000
28592399360,9cyclictest402355-21/usr/sbin/munin10:40:230
179699360,3rtkit-daemon1795-21rtkit-daemon10:30:280
179699360,3rtkit-daemon0-21swapper/012:31:090
179699360,3rtkit-daemon0-21swapper/012:31:090
179699360,3rtkit-daemon0-21swapper/011:05:390
179699360,3rtkit-daemon0-21swapper/011:04:150
179699360,3rtkit-daemon0-21swapper/009:03:521
28592399355,8cyclictest351077-21unixbench-2d09:30:250
28592399354,10cyclictest387363-21/usr/sbin/munin10:20:210
28592399354,10cyclictest387363-21/usr/sbin/munin10:20:210
28592399353,7cyclictest361579-21ntpq09:45:200
28592399352,9cyclictest486232-21ssh12:37:090
28592399352,11cyclictest376372-21latency10:05:180
28592399351,12cyclictest466000-21apt-get12:10:130
179699350,5rtkit-daemon346660-21irqstats09:25:201
28592399345,7cyclictest309161-21apt-get08:05:130
28592399342,9cyclictest405173-21head10:45:180
28592399342,10cyclictest336040-21gzip09:10:220
28592399341,9cyclictest425970-21ssh11:14:560
28592399340,10cyclictest314820-21grep08:20:000
179699340,4rtkit-daemon1795-21rtkit-daemon07:28:070
179699340,3rtkit-daemon1795-21rtkit-daemon07:13:041
179699340,3rtkit-daemon0-21swapper/012:03:081
179699340,3rtkit-daemon0-21swapper/009:12:231
28592399338,2cyclictest141rcu_preempt10:15:000
28592399336,7cyclictest334788-21diskmemload12:25:170
28592399333,10cyclictest473182-21idleruntime-cro12:20:000
28592399331,9cyclictest332115-21cat09:00:240
28592399330,8cyclictest323059-21latency_hist08:40:010
28592399330,12cyclictest297783-21package-data-do07:35:190
179699330,4rtkit-daemon1795-21rtkit-daemon11:25:281
179699330,4rtkit-daemon1795-21rtkit-daemon08:04:420
179699330,3rtkit-daemon1795-21rtkit-daemon08:50:170
179699330,3rtkit-daemon0-21swapper/012:14:171
179699330,3rtkit-daemon0-21swapper/011:42:481
28592399321,14cyclictest320716-21python308:35:000
179699320,5rtkit-daemon451191-21seq11:49:311
179699320,4rtkit-daemon473434-21/usr/sbin/munin12:20:161
179699320,3rtkit-daemon1795-21rtkit-daemon11:23:561
179699320,3rtkit-daemon0-21swapper/109:26:290
28592399311,8cyclictest763-21dbus-daemon09:43:120
28592399311,8cyclictest311375-21fschecks_count08:10:170
28592399311,7cyclictest13-21ksoftirqd/008:30:010
179699310,3rtkit-daemon0-21swapper/107:55:100
179699310,3rtkit-daemon0-21swapper/107:12:080
179699310,3rtkit-daemon0-21swapper/011:59:081
179699310,3rtkit-daemon0-21swapper/010:38:551
179699310,3rtkit-daemon0-21swapper/010:02:151
179699310,3rtkit-daemon0-21swapper/007:41:001
28592899308,5cyclictest0-21swapper/112:19:521
179699300,4rtkit-daemon1795-21rtkit-daemon08:59:361
179699300,3rtkit-daemon1795-21rtkit-daemon09:45:091
179699300,3rtkit-daemon0-21swapper/011:08:281
179699300,3rtkit-daemon0-21swapper/007:47:521
179699300,3rtkit-daemon0-21swapper/007:18:031
285928992927,1cyclictest66950irq/132-enp2s009:40:361
285928992926,2cyclictest0-21swapper/108:00:251
28592399291,8cyclictest353657-21cpu09:35:130
179699290,3rtkit-daemon1795-21rtkit-daemon11:13:231
179699290,3rtkit-daemon1795-21rtkit-daemon09:53:381
179699290,3rtkit-daemon1795-21rtkit-daemon08:38:421
179699290,3rtkit-daemon0-21swapper/012:31:391
179699290,3rtkit-daemon0-21swapper/012:31:381
179699290,3rtkit-daemon0-21swapper/011:50:271
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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