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2026-04-02 - 12:21
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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 rack0slot3.osadl.org (updated Thu Apr 02, 2026 00:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19619822368326,14sleep140-21swapper/1419:07:566
19619412367347,14sleep110-21swapper/1119:07:203
19620112364322,14sleep70-21swapper/719:08:2113
19619582347328,13sleep80-21swapper/819:07:3414
19620132345324,14sleep90-21swapper/919:08:2315
19619502345305,14sleep10-21swapper/119:07:271
19621092343322,14sleep60-21swapper/619:09:3912
19619892343323,13sleep40-21swapper/419:08:0210
19618422343324,13sleep30-21swapper/319:05:529
19621052340316,13sleep20-21swapper/219:09:368
19620932339320,13sleep120-21swapper/1219:09:304
19621082338317,15sleep50-21swapper/519:09:3911
19620702337317,14sleep100-21swapper/1019:09:122
19621012334312,15sleep150-21swapper/1519:09:337
19619252334314,14sleep130-21swapper/1319:07:075
19619292332312,14sleep00-21swapper/019:07:100
196236799322322,0cyclictest0-21swapper/1523:40:017
1962361992850,283cyclictest0-21swapper/920:25:0015
1962361992850,283cyclictest0-21swapper/920:07:0015
196234699285282,3cyclictest2211-21Xorg20:04:001
196236499284281,3cyclictest2211-21Xorg22:22:004
1962361992840,284cyclictest0-21swapper/919:59:0015
1962361992840,282cyclictest0-21swapper/919:13:0015
196235899284284,0cyclictest25150irq/128-ahci[0023:39:5812
196235699284282,2cyclictest3272-21gnome-shell20:47:5910
196236699283281,2cyclictest3272-21gnome-shell19:40:596
196236699283281,2cyclictest3272-21gnome-shell19:39:596
1962366992830,283cyclictest0-21swapper/1419:25:586
1962366992830,283cyclictest0-21swapper/1419:20:596
1962361992830,283cyclictest0-21swapper/919:17:0015
196235899283281,2cyclictest3272-21gnome-shell19:15:5912
1962358992830,1cyclictest0-21swapper/622:34:5812
1962356992830,283cyclictest0-21swapper/420:36:5910
1962342992830,283cyclictest0-21swapper/022:50:000
1962366992820,282cyclictest0-21swapper/1420:57:596
1962366992820,282cyclictest0-21swapper/1419:13:596
196236099282280,2cyclictest2211-21Xorg22:50:0014
1962356992820,282cyclictest0-21swapper/420:33:5910
196235999281279,2cyclictest3272-21gnome-shell23:09:5813
196235899281279,2cyclictest3272-21gnome-shell21:12:5912
196234699281279,2cyclictest2211-21Xorg19:17:591
196236699280279,1cyclictest0-21swapper/1419:19:596
196236499280277,3cyclictest2211-21Xorg22:42:004
196236699279277,2cyclictest3272-21gnome-shell19:34:596
196236199279278,1cyclictest0-21swapper/920:18:0015
196235899279278,1cyclictest0-21swapper/619:33:5812
196236699278277,1cyclictest0-21swapper/1421:02:596
196235899278276,2cyclictest3272-21gnome-shell21:01:5912
196235699278276,2cyclictest3272-21gnome-shell20:44:5910
196236699277276,1cyclictest0-21swapper/1421:06:596
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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