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2026-05-09 - 18:08
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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 May 09, 2026 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9850632263182,19sleep10-21swapper/107:08:361
9836812251183,52sleep00-21swapper/007:05:200
10414242730,3chrt0-21swapper/009:20:150
11824332630,3sleep10-21swapper/112:27:421
179699600,3rtkit-daemon1795-21rtkit-daemon10:51:091
179699600,3rtkit-daemon1795-21rtkit-daemon10:51:091
9897622590,4sleep1989735-21sendmail07:20:011
9861982590,5sleep00-21swapper/007:10:210
179699540,5rtkit-daemon1795-21rtkit-daemon12:18:110
179699520,4rtkit-daemon1795-21rtkit-daemon11:25:560
179699510,3rtkit-daemon1795-21rtkit-daemon11:02:061
10863932510,1sleep00-21swapper/010:19:570
179699500,3rtkit-daemon1795-21rtkit-daemon10:16:061
179699480,4rtkit-daemon1795-21rtkit-daemon08:48:381
179699480,3rtkit-daemon1795-21rtkit-daemon11:09:411
179699470,3rtkit-daemon1795-21rtkit-daemon11:51:470
11388322440,3sleep10-21swapper/111:29:241
179699430,4rtkit-daemon1033240-21diskmemload09:49:530
98531599386,6cyclictest13-21ksoftirqd/008:35:020
179699380,5rtkit-daemon1029731-21df09:00:160
179699380,3rtkit-daemon0-21swapper/012:31:570
11326232380,3sleep00-21swapper/011:20:190
98531599376,6cyclictest13-21ksoftirqd/008:20:010
179699370,3rtkit-daemon0-21swapper/010:31:440
179699360,4rtkit-daemon1795-21rtkit-daemon11:10:291
179699360,3rtkit-daemon0-21swapper/111:09:550
98532399359,3cyclictest11727112cpuspeed_turbos12:15:141
98531599356,6cyclictest13-21ksoftirqd/012:40:000
98531599351,2cyclictest141rcu_preempt10:50:000
179699350,5rtkit-daemon1050794-21ssh09:30:511
98531599345,8cyclictest13-21ksoftirqd/009:25:150
985315993417,3cyclictest1075555-21ssh10:05:100
179699340,4rtkit-daemon1795-21rtkit-daemon08:07:171
179699340,3rtkit-daemon1795-21rtkit-daemon09:57:171
179699340,3rtkit-daemon0-21swapper/110:08:581
98531599336,6cyclictest13-21ksoftirqd/007:45:000
98531599330,7cyclictest1053067-21apt-get09:35:130
179699330,3rtkit-daemon0-21swapper/107:30:110
179699330,3rtkit-daemon0-21swapper/010:27:021
10737882330,4sleep10-21swapper/110:01:561
98531599326,7cyclictest13-21ksoftirqd/012:09:440
98531599321,9cyclictest1087977-21/usr/sbin/munin10:20:250
98531599320,8cyclictest1049195-21apt-get09:30:130
98531599320,7cyclictest1176226-21apt-get12:20:100
179699320,4rtkit-daemon1795-21rtkit-daemon10:27:470
179699320,3rtkit-daemon1795-21rtkit-daemon09:51:521
179699320,3rtkit-daemon0-21swapper/109:51:590
179699320,3rtkit-daemon0-21swapper/107:24:051
179699320,3rtkit-daemon0-21swapper/011:59:511
985315993110,3cyclictest13-21ksoftirqd/010:00:150
98531599310,7cyclictest1033240-21diskmemload10:53:140
98531599310,7cyclictest1033240-21diskmemload10:53:140
98531599310,10cyclictest13-21ksoftirqd/010:10:210
179699310,4rtkit-daemon1795-21rtkit-daemon07:59:371
179699310,3rtkit-daemon1795-21rtkit-daemon08:15:371
179699310,3rtkit-daemon0-21swapper/108:22:410
179699310,3rtkit-daemon0-21swapper/012:12:021
98531599309,4cyclictest13-21ksoftirqd/010:59:100
98531599308,9cyclictest13-21ksoftirqd/007:45:190
98531599307,6cyclictest1150427-21sh11:45:100
98531599300,8cyclictest1161498-21apt-get12:00:120
98531599300,8cyclictest1157820-21apt-get11:55:140
179699300,3rtkit-daemon1795-21rtkit-daemon10:37:551
179699300,3rtkit-daemon0-21swapper/111:10:370
179699300,3rtkit-daemon0-21swapper/108:48:010
179699300,3rtkit-daemon0-21swapper/108:04:250
179699300,2rtkit-daemon1795-21rtkit-daemon11:37:251
985323992926,2cyclictest66950irq/132-enp2s009:29:491
98532399291,8cyclictest0-21swapper/108:10:241
985323992915,12cyclictest26-21ksoftirqd/107:39:591
98531599297,6cyclictest13-21ksoftirqd/009:10:310
98531599296,6cyclictest13-21ksoftirqd/012:28:270
98531599296,6cyclictest13-21ksoftirqd/011:39:410
98531599296,6cyclictest13-21ksoftirqd/011:33:490
98531599295,7cyclictest13-21ksoftirqd/009:17:180
98531599295,7cyclictest13-21ksoftirqd/008:29:300
98531599295,6cyclictest13-21ksoftirqd/012:13:590
98531599295,6cyclictest13-21ksoftirqd/011:40:100
98531599295,6cyclictest13-21ksoftirqd/011:17:580
98531599294,9cyclictest13-21ksoftirqd/009:55:220
98531599292,4cyclictest13-21ksoftirqd/007:25:230
98531599291,9cyclictest13-21ksoftirqd/008:05:140
98531599290,8cyclictest13-21ksoftirqd/009:40:230
98531599290,8cyclictest1102744-21/usr/sbin/munin10:40:200
98531599290,7cyclictest1099088-21/usr/sbin/munin10:35:230
179699290,3rtkit-daemon0-21swapper/107:38:260
179699290,3rtkit-daemon0-21swapper/107:22:090
179699290,3rtkit-daemon0-21swapper/009:24:211
98531599285,8cyclictest13-21ksoftirqd/008:50:100
98531599280,7cyclictest161rcuc/011:00:100
179699280,4rtkit-daemon1795-21rtkit-daemon07:51:361
179699280,3rtkit-daemon0-21swapper/012:05:111
98531599276,6cyclictest13-21ksoftirqd/008:55:160
98531599271,7cyclictest13-21ksoftirqd/008:10:140
179699270,3rtkit-daemon0-21swapper/107:52:230
985323992623,2cyclictest66950irq/132-enp2s010:57:171
985323992611,9cyclictest1139351-21apt-get11:30:141
985323992610,3cyclictest10613302open_inodes09:45:211
98531599265,6cyclictest1023401-21taskset08:44:310
98531599264,9cyclictest988607-21missed_timers07:15:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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