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2026-05-30 - 20:07
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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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack0slot2.osadl.org (updated Sat May 30, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
36602526251,7sleep40-21swapper/407:03:524
366549996059,0cyclictest0-21swapper/707:07:297
11081012540,0sleep71108100-21rm12:36:197
366549994743,3cyclictest827-21dbus-daemon08:26:587
36623524736,8sleep50-21swapper/507:06:505
366549994136,4cyclictest987518-21latency_hist11:46:577
366545994037,2cyclictest3579423-21kworker/u16:0+flush-8:007:12:146
3659522405,30sleep70-21swapper/707:02:517
366549993832,5cyclictest485261-21latency_hist08:06:597
366541993836,2cyclictest698435-21kworker/u16:3+events_unbound11:07:125
366549993633,2cyclictest634134-21ssh09:17:327
366541993634,2cyclictest684959-21kworker/u16:0+events_unbound09:42:135
366549993533,1cyclictest0-21swapper/707:11:597
366545993533,2cyclictest963209-21kworker/u16:0+events_unbound11:37:296
366549993432,1cyclictest0-21swapper/707:32:127
366549993429,4cyclictest878579-21latency_hist11:01:587
366549993130,0cyclictest0-21swapper/710:30:537
366549993128,2cyclictest719185-21sh09:53:087
366545993130,1cyclictest817535-21kworker/u16:1+events_unbound11:00:296
366541993129,2cyclictest571597-21kworker/u16:0+events_unbound09:22:215
366549993029,0cyclictest0-21swapper/711:37:007
366545993027,2cyclictest504842-21kworker/u16:5+events_unbound08:32:106
366541993028,2cyclictest698435-21kworker/u16:3+flush-8:010:06:535
366545992927,2cyclictest937753-21kworker/u16:3+events_unbound11:26:586
366545992926,2cyclictest937753-21kworker/u16:3+events_unbound11:32:016
366536992928,1cyclictest3579423-21kworker/u16:0+flush-8:007:11:594
9270932280,1chrt927090-21awk11:21:577
7552372280,1chrt755238-21sh10:07:367
366545992826,2cyclictest504842-21kworker/u16:5+flush-8:008:42:296
366541992826,2cyclictest937753-21kworker/u16:3+events_unbound12:32:195
366541992826,2cyclictest504842-21kworker/u16:5+events_unbound09:07:145
8515342270,1chrt0-21swapper/610:47:266
366549992726,0cyclictest0-21swapper/712:07:007
366549992726,0cyclictest0-21swapper/710:41:527
366549992722,4cyclictest890708-21latency_hist11:06:587
366545992725,2cyclictest3827495-21kworker/u16:3+flush-8:008:01:546
366541992725,2cyclictest363014-21kworker/u16:1+events_unbound07:12:245
366536992724,2cyclictest648724-21kworker/u16:1+flush-8:009:42:294
366541992624,2cyclictest937753-21kworker/u16:3+events_unbound12:31:575
366541992624,2cyclictest571597-21kworker/u16:0+events_unbound08:52:235
366536992624,2cyclictest914971-21kworker/u16:2+events_unbound12:07:254
366536992622,3cyclictest817535-21kworker/u16:1+flush-8:010:37:194
366536992621,4cyclictest876352-21packagekitd10:58:094
366541992523,2cyclictest914971-21kworker/u16:2+events_unbound11:42:175
366541992523,2cyclictest698435-21kworker/u16:3+events_unbound10:43:295
366541992523,2cyclictest684959-21kworker/u16:0+events_unbound10:55:255
366541992523,2cyclictest589629-21kworker/u16:2+events_unbound09:57:145
366541992523,2cyclictest589629-21kworker/u16:2+events_unbound09:15:215
366541992422,2cyclictest937753-21kworker/u16:3+events_unbound11:47:245
366541992422,2cyclictest937753-21kworker/u16:3+events_unbound11:28:405
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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