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2024-04-19 - 06:14
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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 Fri Apr 19, 2024 00:45:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5682122142123,10sleep110-21swapper/1119:09:493
3727667101350,127AudioIP~ackRPC0-2101:24:0712
1380154101320,131AudioIPC00-21swapper/819:06:0114
3727667101290,128AudioIP~ackRPC0-2101:24:072
1380154101260,125AudioIPC00-21swapper/1219:08:164
567808212381,39sleep140-21swapper/1419:06:226
3727667101190,118AudioIP~ackRPC0-2101:24:075
5682012113109,1sleep20-21swapper/219:09:398
19769201060,104pipewire-pulse0-21swapper/319:06:059
5680862102100,1sleep10-21swapper/119:08:351
567980210246,49sleep150-21swapper/1519:07:287
50698128785,1sleep00-21swapper/019:05:210
1976920830,41pipewire-pulse0-21swapper/419:05:0810
1977720790,69pipewire0-21swapper/519:06:1911
56903499690,14cyclictest0-21swapper/1519:23:117
372766710650,64AudioIP~ackRPC0-2101:24:0715
41575622620,0sleep50-21swapper/523:40:2511
569010995958,1cyclictest57206-1kworker/u33:222:21:5115
50536925946,6sleep70-21swapper/719:05:1213
143999570,0ntpd0-21swapper/821:29:4014
569007995450,1cyclictest57206-1kworker/u33:222:43:1814
568987995352,1cyclictest11983-21InputThread19:35:439
568991994839,9cyclictest3596620-21ssh22:55:5210
568991994839,9cyclictest3596620-21ssh22:55:5110
56903499460,17cyclictest0-21swapper/1519:15:427
56902999440,30cyclictest0-21swapper/1420:43:576
143999440,3ntpd13-21ksoftirqd/021:49:130
9421112420,0sleep140-21swapper/1419:35:296
569007994238,3cyclictest1404189-21snmpd19:31:1414
569007994238,3cyclictest1404189-21snmpd19:31:1314
143999420,1ntpd13-21ksoftirqd/020:40:230
143999420,0ntpd88-21ksoftirqd/1023:45:022
56898799410,15cyclictest0-21swapper/321:58:139
569026994022,17cyclictest3591664-21x0vncserver21:04:335
568996994014,25cyclictest501irq_work/521:59:0011
56898399400,15cyclictest0-21swapper/221:50:008
143999400,0ntpd0-21swapper/1200:29:404
56901599390,14cyclictest3798614-21sh23:12:562
569021993822,13cyclictest0-21swapper/1220:40:174
568996993837,1cyclictest11983-21InputThread20:49:5511
568996993837,1cyclictest11983-21InputThread20:49:5411
568983993737,0cyclictest0-21swapper/222:04:278
1976920370,9pipewire-pulse9734-21Xorg22:10:393
143999360,2ntpd13-21ksoftirqd/020:36:430
143999360,0ntpd0-21swapper/1022:29:412
56903499350,33cyclictest0-21swapper/1520:23:187
56902999350,34cyclictest0-21swapper/1421:03:386
569026993515,20cyclictest0-21swapper/1300:20:145
569019993535,0cyclictest0-21swapper/1120:42:253
569015993510,25cyclictest0-21swapper/1019:55:152
56900299353,4cyclictest3642777-21Isolated01:24:0713
568996993535,0cyclictest0-21swapper/520:33:5811
56897799350,8cyclictest601627-21IPC0
3762312350,0sleep140-21swapper/1400:10:286
1976920350,2pipewire-pulse3591664-21x0vncserver22:03:1511
56902999340,9cyclictest0-21swapper/1421:53:316
56900299343,3cyclictest754084-21Isolated01:24:0713
56900299340,0cyclictest0-21swapper/700:35:1613
568996993434,0cyclictest0-21swapper/520:35:2211
568979993410,24cyclictest1226770-21kworker/u32:020:38:481
568979993410,24cyclictest0-21swapper/120:16:011
56897799349,25cyclictest3664385-21kworker/u32:323:29:360
56897799340,33cyclictest4070026-21DOM01:24:070
143999340,1ntpd13-21ksoftirqd/021:37:340
569026993314,19cyclictest0-21swapper/1321:52:185
56902699330,8cyclictest0-21swapper/1320:49:075
56902699330,8cyclictest0-21swapper/1320:49:065
56902199338,25cyclictest0-21swapper/1220:45:324
56902199338,25cyclictest0-21swapper/1220:45:314
56901099339,24cyclictest3727538-21glean.dispatche23:56:1915
569002993320,12cyclictest4012246-21TaskCon~ller13
569002993320,12cyclictest4012246-21TaskCon~ller13
56898799338,25cyclictest0-21swapper/319:43:349
56898799336,26cyclictest3727582-21Renderer19:57:209
568983993319,1cyclictest0-21swapper/221:05:378
568983993313,20cyclictest0-21swapper/200:20:158
1977720330,7pipewire81-21ksoftirqd/922:19:3915
1977720330,17pipewire81-21ksoftirqd/921:54:0315
1976920330,0pipewire-pulse0-21swapper/1122:55:433
1976920330,0pipewire-pulse0-21swapper/1122:55:433
143999330,1ntpd74-21ksoftirqd/821:07:2414
143999330,1ntpd74-21ksoftirqd/821:04:3214
143999330,1ntpd74-21ksoftirqd/820:53:3814
56903499320,6cyclictest0-21swapper/1520:35:587
56902199328,0cyclictest991irq_work/1221:53:334
56901599328,11cyclictest0-21swapper/1019:33:172
56901599328,11cyclictest0-21swapper/1019:33:172
569002993232,0cyclictest0-21swapper/720:30:1313
56900299321,27cyclictest57267-21Isolated01:24:0713
56900299320,8cyclictest0-21swapper/720:56:3313
56900299320,31cyclictest3261838-21Isolated01:24:0713
56900299320,25cyclictest3589254-21Isolated01:24:0713
56899699325,11cyclictest1239344-21IPC11
56899699325,11cyclictest1239344-21IPC11
56899199323,6cyclictest1976920pipewire-pulse21:11:1410
56899199323,6cyclictest1976920pipewire-pulse21:11:1410
568983993219,13cyclictest0-21swapper/220:49:528
568983993219,13cyclictest0-21swapper/220:49:528
56897799321,2cyclictest1546217-21Backgro~ool0
1977720320,28pipewire95-21ksoftirqd/1120:55:033
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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