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2026-03-06 - 23:49
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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 50 highest latencies:
System rackeslot2.osadl.org (updated Fri Mar 06, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
168633621650,3sleep30-21swapper/312:36:493
14808182560,2sleep11480816-21cron10:40:011
1173604992420,2cyclictest0-21swapper/210:30:012
1173602992315,6cyclictest1633272-21fschecks_time12:06:470
1173602992315,1cyclictest1505313-21python310:51:590
117360299230,14cyclictest1596002-21munin-run11:45:000
2649091220,3phc2sys0-21swapper/309:12:193
1173604992220,1cyclictest0-21swapper/207:15:022
1173604992219,1cyclictest0-21swapper/211:35:002
1173602992219,2cyclictest1436967-21systemd-run10:15:010
1173602992214,7cyclictest1339-21udisksd10:38:530
1173604992118,1cyclictest0-21swapper/211:15:002
1173602992112,8cyclictest1553860-21gltestperf11:21:490
1173604992017,1cyclictest0-21swapper/211:46:572
1173604992017,1cyclictest0-21swapper/209:45:002
1173603992018,1cyclictest1218600-21dump-pmu-power07:45:001
1173602992018,1cyclictest1383411-21cron09:45:000
1173602992017,2cyclictest0-21swapper/011:50:010
2902298190,3rtkit-daemon1173600-21cyclictest08:31:190
2649091191,3phc2sys0-21swapper/311:33:583
1173604991917,1cyclictest0-21swapper/207:30:012
117360499191,12cyclictest0-21swapper/212:10:012
1173603991916,2cyclictest1410149-21apt-key10:00:011
1173603991916,2cyclictest1288-1atopacctd12:09:061
1173603991914,4cyclictest1587119-21idleruntime-cro11:40:001
1173603991912,6cyclictest1250264-21gltestperf08:11:481
1173603991912,3cyclictest1441590-21kthreadcore10:16:511
1173602991917,1cyclictest1291808-21apt08:46:460
1173602991916,2cyclictest1326-21systemd-logind10:05:000
1173602991912,6cyclictest1423358-21kthreadcore10:06:520
1173602991912,5cyclictest1403773-21kthreadcore09:56:500
1173602991911,7cyclictest1644395-21kthreadcore12:11:510
1173602991911,6cyclictest1173600-21cyclictest12:40:010
2902298180,2rtkit-daemon0-21swapper/012:28:030
2649091181,1phc2sys0-21swapper/309:20:293
2649091180,2phc2sys0-21swapper/309:18:443
1173604991815,1cyclictest0-21swapper/209:00:002
117360399189,1cyclictest491rcuog/209:20:321
117360399188,4cyclictest0-21swapper/110:56:451
1173603991815,2cyclictest1507541-21latency_hist10:55:001
1173603991815,2cyclictest1436960-21munin-plugin-st10:15:011
1173603991815,2cyclictest1290-21dbus-daemon11:05:011
1173603991815,2cyclictest1290-21dbus-daemon10:05:001
1173603991815,2cyclictest1200465-21apt-key07:30:011
1173603991815,2cyclictest0-21swapper/111:35:021
1173603991814,3cyclictest0-21swapper/110:45:001
1173603991812,2cyclictest134050irq/121-eno111:21:531
1173603991812,2cyclictest134050irq/121-eno109:51:511
1173602991815,2cyclictest1212603-21munin-plugin-st07:40:000
1173602991811,6cyclictest1609046-21kthreadcore11:51:530
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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