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2026-05-21 - 14:01
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 million
Resolution of latency scale: reduced 
Duration: 5 hours, 33 minutes
Characteristics of the highest latencies:
System rack8slot1.osadl.org (updated Thu May 21, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24916993121860,0cyclictest435-21sh00:01:500
249169928752668,0cyclictest0-21swapper00:00:540
24916992863604,0cyclictest0-21swapper23:20:560
24916992731529,0cyclictest1603-21cron21:00:590
24916992618266,0cyclictest20074-1kworker/0:1H20:55:590
24916992591208,0cyclictest20074-1kworker/0:1H20:00:590
24916992545552,0cyclictest9-21ksoftirqd/000:15:590
24916992535532,0cyclictest2811-21latency_hist22:35:580
24916992451106,0cyclictest20074-1kworker/0:1H21:25:590
24916992418615,0cyclictest32083-21munin-node19:21:000
24916992385659,0cyclictest1595-21jbd2/hda3-821:56:000
24916992374233,0cyclictest20074-1kworker/0:1H23:25:590
24916992367721,0cyclictest9-21ksoftirqd/023:20:590
24916992356629,0cyclictest9-21ksoftirqd/021:15:580
24916992342328,0cyclictest22525-1kworker/0:0H00:20:590
24916992327267,0cyclictest20074-1kworker/0:1H20:45:590
24916992319501,0cyclictest0-21swapper22:15:580
24916992312644,0cyclictest25324-21munin-node20:35:580
24916992309222,0cyclictest20074-1kworker/0:1H19:00:540
24916992307691,0cyclictest6749-21munin-node19:40:590
24916992302602,0cyclictest20476-21munin-node20:20:590
24916992302262,0cyclictest20074-1kworker/0:1H22:20:580
24916992272514,0cyclictest15163-21munin-node20:05:590
24916992264250,0cyclictest20074-1kworker/0:1H20:25:590
24916992262561,0cyclictest24155-21seq23:35:590
24916992217641,0cyclictest9-21ksoftirqd/021:05:590
24916992214534,0cyclictest9-21ksoftirqd/019:55:590
24916992209219,0cyclictest20074-1kworker/0:1H19:15:580
24916992208607,0cyclictest1595-21jbd2/hda3-823:45:580
24916992191559,0cyclictest0-21swapper00:11:420
24916992178489,0cyclictest9-21ksoftirqd/023:40:590
24916992112707,0cyclictest9-21ksoftirqd/000:25:580
24916992059638,0cyclictest25027-21seq19:01:000
24916992049179,0cyclictest9-21ksoftirqd/023:00:590
24916992048298,0cyclictest20074-1kworker/0:1H19:35:590
24916991957741,0cyclictest3170-21sendmail_mailtr19:31:030
24916991954264,0cyclictest20074-1kworker/0:1H21:35:590
24916991879599,0cyclictest9-21ksoftirqd/019:06:040
24916991875141,0cyclictest20074-1kworker/0:1H19:46:000
24916991863732,0cyclictest4695-21munin-node22:41:000
24916991845304,0cyclictest20074-1kworker/0:1H20:51:020
24916991830233,0cyclictest20074-1kworker/0:1H21:11:020
24916991823527,0cyclictest1595-21jbd2/hda3-820:31:020
24916991820302,0cyclictest20074-1kworker/0:1H22:05:590
24916991794492,0cyclictest9-21ksoftirqd/019:51:040
24916991788264,0cyclictest9-21ksoftirqd/023:53:580
24916991777212,0cyclictest20074-1kworker/0:1H21:33:270
24916991774251,0cyclictest20074-1kworker/0:1H19:25:580
2491699176992,0cyclictest20074-1kworker/0:1H20:15:580
24916991763488,0cyclictest9-21ksoftirqd/021:20:580
2491699171728,0cyclictest20074-1kworker/0:1H22:00:580
24916991712270,0cyclictest20074-1kworker/0:1H23:05:590
24916991709653,0cyclictest31820-21munin-node22:25:580
24916991699730,0cyclictest15317-21latency_hist23:11:020
24916991681568,0cyclictest9-21ksoftirqd/022:45:580
24916991677516,0cyclictest9-21ksoftirqd/019:11:120
24916991670530,0cyclictest9-21ksoftirqd/023:31:060
24916991661351,0cyclictest9-21ksoftirqd/022:33:210
24916991642432,0cyclictest9-21ksoftirqd/021:45:590
24916991630504,0cyclictest9-21ksoftirqd/022:55:580
24916991543456,0cyclictest18181-21tune2fs20:13:160
2491699153227,0cyclictest20074-1kworker/0:1H22:53:180
24916991492604,0cyclictest9-21ksoftirqd/020:41:040
24916991462319,0cyclictest9-21ksoftirqd/000:08:400
24916991396412,0cyclictest1595-21jbd2/hda3-821:53:250
24916991367320,0cyclictest9-21ksoftirqd/022:13:200
24916991310280,0cyclictest9-21ksoftirqd/021:43:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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