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2025-10-28 - 07:01
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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 100 highest latencies:
System rack0slot7.osadl.org (updated Tue Oct 28, 2025 00:46:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1950416994271,0cyclictest0-21swapper/1423:22:206
195040599427425,1cyclictest2163-21snmpd23:22:1013
1950416994174,412cyclictest0-21swapper/1423:18:366
195040699414414,0cyclictest0-21swapper/823:21:0014
195040599413411,1cyclictest2698006-21kworker/u64:4+events_unbound00:13:3913
195040699399399,0cyclictest0-21swapper/823:18:3614
195040299395394,1cyclictest0-21swapper/400:27:1710
195040299395394,1cyclictest0-21swapper/400:17:5910
195040299394394,0cyclictest0-21swapper/423:27:0010
195040299394394,0cyclictest0-21swapper/423:23:4310
195040299394394,0cyclictest0-21swapper/422:58:2110
195040299394394,0cyclictest0-21swapper/422:44:1410
195040299394394,0cyclictest0-21swapper/400:08:1510
195040299394393,1cyclictest0-21swapper/423:59:4210
195040299393393,0cyclictest0-21swapper/423:35:0210
195040299393393,0cyclictest0-21swapper/423:08:2810
195040299393393,0cyclictest0-21swapper/400:31:1410
195041899380378,1cyclictest0-21swapper/1523:21:007
195041899364363,0cyclictest0-21swapper/1523:18:367
195041199362359,2cyclictest2787389-21kworker/u64:3+events_unbound23:21:005
195040399360359,1cyclictest0-21swapper/523:21:0011
1950418993460,345cyclictest0-21swapper/1500:13:397
195040399344341,2cyclictest2787389-21kworker/u64:3+events_unbound00:03:5911
195041199342342,0cyclictest0-21swapper/1300:03:595
195040499330325,4cyclictest2840655-21kworker/u64:0+events_unbound23:22:2012
195040499315312,2cyclictest2698006-21kworker/u64:4+events_unbound23:18:3612
195039899299295,4cyclictest2373693-21kworker/0:2+events23:20:590
195041899293291,1cyclictest0-21swapper/1500:33:137
195039899290282,7cyclictest9704-21Xorg00:07:140
195039899290281,8cyclictest9704-21Xorg22:44:360
195039899289280,8cyclictest28682-21Renderer22:46:100
195039899288278,9cyclictest28682-21Renderer23:06:140
195041099287283,3cyclictest10230-21gnome-shell23:30:594
195041099287283,3cyclictest10230-21gnome-shell23:30:594
195040699287282,4cyclictest9704-21Xorg00:18:5614
195039999287281,5cyclictest9704-21Xorg23:13:001
195039899287278,8cyclictest9704-21Xorg23:59:350
195040999286280,4cyclictest9704-21Xorg23:19:003
195040899286281,4cyclictest10230-21gnome-shell23:58:592
1950408992860,3cyclictest2858754-21StreamT~ns2
195040799286281,4cyclictest9704-21Xorg23:17:4915
195040699286281,4cyclictest9704-21Xorg23:32:3214
195040699286281,4cyclictest9704-21Xorg23:32:3114
195040699286281,4cyclictest9704-21Xorg22:50:4714
195040699286281,4cyclictest9704-21Xorg22:50:4714
1950406992860,1cyclictest0-21swapper/823:08:1114
195040399286282,3cyclictest9704-21Xorg23:34:2111
195040399286282,3cyclictest9704-21Xorg23:34:2011
195040399286281,4cyclictest9704-21Xorg00:17:0511
1950398992860,1cyclictest0-21swapper/022:53:570
1950398992860,1cyclictest0-21swapper/022:53:560
1950416992850,283cyclictest0-21swapper/1423:34:126
1950416992850,283cyclictest0-21swapper/1423:34:116
195040899285281,3cyclictest9704-21Xorg00:03:252
195040799285281,3cyclictest9704-21Xorg00:33:0715
195040599285279,5cyclictest28682-21Renderer23:59:4413
195040199285281,3cyclictest9704-21Xorg23:14:389
195040099285281,3cyclictest9704-21Xorg00:13:468
195039899285279,5cyclictest9704-21Xorg00:34:260
1950418992840,282cyclictest0-21swapper/1500:06:557
1950418992840,1cyclictest0-21swapper/1500:02:017
195041199284283,1cyclictest1591ktimers/1323:34:215
195041199284283,1cyclictest1591ktimers/1323:34:215
1950410992840,283cyclictest0-21swapper/1223:27:564
195040899284280,3cyclictest9704-21Xorg23:21:402
195040899284279,4cyclictest9704-21Xorg23:10:492
195040599284278,5cyclictest9704-21Xorg23:06:4713
1950402992840,283cyclictest0-21swapper/422:48:0010
195039899284280,3cyclictest2373693-21kworker/0:2+events23:18:350
195041899283281,1cyclictest0-21swapper/1523:13:197
1950410992830,1cyclictest0-21swapper/1200:20:004
195040799283279,3cyclictest28682-21Renderer00:24:0515
195040499283279,3cyclictest28682-21Renderer23:33:3812
195040499283279,3cyclictest28682-21Renderer23:33:3812
195040399283279,3cyclictest9704-21Xorg22:49:4711
195040199283280,2cyclictest9704-21Xorg23:59:139
195040199283277,5cyclictest28682-21Renderer00:06:539
195039999283279,3cyclictest9704-21Xorg22:59:071
195039999283279,3cyclictest28347-21seamonkey23:17:381
1950399992830,1cyclictest0-21swapper/123:41:131
1950399992830,1cyclictest0-21swapper/100:25:051
195039899283275,7cyclictest9704-21Xorg00:29:280
195041899282281,0cyclictest0-21swapper/1523:08:107
1950418992820,281cyclictest0-21swapper/1523:32:597
1950418992820,281cyclictest0-21swapper/1523:32:587
195041699282282,0cyclictest0-21swapper/1423:59:456
195041199282280,2cyclictest9704-21Xorg23:40:005
195041199282278,3cyclictest9704-21Xorg00:39:595
195041099282277,4cyclictest28682-21Renderer23:21:424
1950410992820,0cyclictest0-21swapper/1200:05:454
195040399282278,3cyclictest9704-21Xorg00:27:0011
195040399282277,4cyclictest28682-21Renderer22:53:4411
195040399282277,4cyclictest28682-21Renderer22:53:4411
195040099282278,3cyclictest28682-21Renderer23:38:208
1950416992810,280cyclictest0-21swapper/1423:02:376
195041199281276,4cyclictest9704-21Xorg23:02:005
195040699281279,1cyclictest0-21swapper/822:47:1214
195040199281277,3cyclictest0-21swapper/323:26:409
195040099281277,3cyclictest28682-21Renderer23:18:348
195041699280279,0cyclictest0-21swapper/1400:24:576
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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