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2025-09-17 - 12:26
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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 Wed Sep 17, 2025 00:46:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9625429945016,28cyclictest0-21swapper/023:56:560
9625749944613,27cyclictest0-21swapper/923:49:3715
96256499429426,2cyclictest1305843-21kworker/u64:1+events_unbound23:53:2312
9625539942117,403cyclictest0-21swapper/300:26:519
96255099421419,2cyclictest0-21swapper/200:04:598
9625429942014,404cyclictest0-21swapper/000:17:430
962545994147,407cyclictest0-21swapper/100:01:411
962560994114,403cyclictest0-21swapper/500:02:5211
962553994106,404cyclictest0-21swapper/319:16:599
962560994095,402cyclictest0-21swapper/519:16:4511
96257799408406,1cyclictest0-21swapper/1200:04:594
962560994076,401cyclictest0-21swapper/523:53:1211
962580994050,404cyclictest0-21swapper/1500:19:437
962576994030,403cyclictest0-21swapper/1119:19:213
96255099403401,2cyclictest1234357-21kworker/2:2+events00:34:268
96256999398396,2cyclictest817627-21Xorg00:19:4313
96257699397393,4cyclictest0-21swapper/1100:12:173
96254599397396,1cyclictest0-21swapper/100:33:141
96257599396396,0cyclictest0-21swapper/1019:16:142
962579993950,394cyclictest0-21swapper/1419:18:586
96257499391390,1cyclictest817627-21Xorg00:01:4015
96257899390390,0cyclictest0-21swapper/1300:08:195
96257599389384,4cyclictest1917319-21kworker/u64:6+events_power_efficient00:04:592
962580993880,388cyclictest0-21swapper/1523:50:587
96255399387386,1cyclictest0-21swapper/323:58:369
96257599385383,2cyclictest817897-21gnome-shell00:22:582
96257799383382,1cyclictest0-21swapper/1223:48:294
96255399383382,1cyclictest836439-21Renderer00:24:179
96256999382379,2cyclictest817897-21gnome-shell23:50:5813
96257999377375,0cyclictest0-21swapper/1400:04:596
96257999376375,0cyclictest0-21swapper/1423:40:146
96257999376375,0cyclictest0-21swapper/1400:31:296
96255399376374,2cyclictest0-21swapper/300:09:439
96257999375375,0cyclictest0-21swapper/1400:26:566
96257999375375,0cyclictest0-21swapper/1400:22:596
96257999375374,0cyclictest0-21swapper/1400:10:226
96257199375374,1cyclictest852107-21kworker/8:2+events19:18:4314
96257999374374,0cyclictest0-21swapper/1400:06:556
962579993730,372cyclictest0-21swapper/1423:53:516
962579993730,372cyclictest0-21swapper/1400:35:536
962579993730,372cyclictest0-21swapper/1400:16:246
962579993720,371cyclictest0-21swapper/1423:59:056
96257799372367,4cyclictest817627-21Xorg00:13:444
96254599369366,3cyclictest817897-21gnome-shell00:36:581
96257799364362,2cyclictest817627-21Xorg00:05:454
96257599364363,1cyclictest0-21swapper/1000:34:262
96256099361360,1cyclictest836439-21Renderer00:08:1911
96257899360359,1cyclictest0-21swapper/1319:17:195
96255699360357,2cyclictest1954810-21kworker/4:2-events00:04:5910
962579993590,358cyclictest0-21swapper/1419:11:576
96255399353350,3cyclictest817627-21Xorg00:12:179
96257499346343,3cyclictest817627-21Xorg00:33:1415
96255099345344,1cyclictest0-21swapper/219:11:128
96254299345342,3cyclictest2105736-21kworker/0:2+events00:38:250
96254299345342,3cyclictest1481921-21kworker/0:0+events00:32:250
96256499341340,1cyclictest817627-21Xorg23:58:5112
96258099336332,3cyclictest0-21swapper/1500:05:007
96255699335333,2cyclictest851890-21kworker/4:0+events23:48:2910
96254599335335,0cyclictest0-21swapper/123:48:531
96258099333332,0cyclictest0-21swapper/1500:31:287
96258099333332,0cyclictest0-21swapper/1500:26:567
96257799333331,2cyclictest836439-21Renderer00:22:164
96255099333328,2cyclictest836439-21Renderer00:17:208
96258099332332,0cyclictest0-21swapper/1523:40:147
96258099332332,0cyclictest0-21swapper/1500:22:587
9625759933223,308cyclictest0-21swapper/1023:53:452
96258099331331,0cyclictest0-21swapper/1500:10:217
96258099331331,0cyclictest0-21swapper/1500:06:557
9625779933023,307cyclictest149-21ksoftirqd/1223:44:234
9625569933022,307cyclictest0-21swapper/400:22:1610
96256999327323,3cyclictest971ktimers/700:04:5913
96256499327326,1cyclictest817897-21gnome-shell00:38:5812
96255099324323,1cyclictest817627-21Xorg23:53:458
96256499322319,3cyclictest817897-21gnome-shell00:17:5812
96254599322319,2cyclictest1917319-21kworker/u64:6+events_unbound23:40:571
96257799321318,0cyclictest0-21swapper/1200:17:214
96255699319318,1cyclictest0-21swapper/400:13:4410
96256499317315,2cyclictest836439-21Renderer00:13:2312
96257199316310,4cyclictest1005207-21kworker/8:0+events23:56:5614
962576993158,306cyclictest0-21swapper/1100:26:203
96254299315313,2cyclictest0-21swapper/019:18:430
962580993140,313cyclictest0-21swapper/1500:36:277
96257799314312,2cyclictest836439-21Renderer19:12:264
96257499314312,2cyclictest0-21swapper/900:36:5915
96255699313312,1cyclictest0-21swapper/400:05:4410
962556993118,301cyclictest0-21swapper/419:12:2610
96257199310308,2cyclictest1991267-21kworker/8:2+events00:17:4314
96257699309306,2cyclictest0-21swapper/1100:04:593
96257599309306,3cyclictest836439-21Renderer19:11:122
96256499309308,1cyclictest817627-21Xorg23:49:4912
962578993080,307cyclictest0-21swapper/1323:43:585
96257899307304,2cyclictest775022-21kworker/13:0+pm19:11:245
96257699306304,2cyclictest817627-21Xorg23:58:363
96256999306304,2cyclictest2065449-21kworker/7:1+events00:36:2713
96256099305304,1cyclictest1164169-21kworker/5:2+events23:43:5911
96258099303299,1cyclictest0-21swapper/1519:11:347
962575993020,302cyclictest0-21swapper/1023:55:342
96257899301301,0cyclictest0-21swapper/1323:55:435
96257699300299,1cyclictest0-21swapper/1100:24:173
96257199296288,6cyclictest1706869-21kworker/u64:3+events_unbound00:05:0014
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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