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2023-11-28 - 20:31
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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 Nov 28, 2023 00:45:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7783201780,169pipewire0-21swapper/119:07:011
12821532158139,10sleep60-21swapper/619:08:5012
9035101410,133AudioIP~ackRPC0-210
1185977101320,126AudioIPC00-21swapper/1219:07:564
9035101310,124AudioIP~ackRPC0-2111:30:503
9035101300,123AudioIP~ackRPC0-2111:30:5014
12819912130112,9sleep100-21swapper/1019:07:182
9035101290,122AudioIP~ackRPC0-2111:30:505
1185977101270,121AudioIPC00-21swapper/319:06:179
7783201160,108pipewire0-21swapper/919:09:2715
1185977101120,106AudioIPC00-21swapper/419:08:4610
1267593210258,37sleep150-21swapper/1519:05:157
128212129944,48sleep140-21swapper/1419:08:266
1282834999519,39cyclictest118597710AudioIPC020:29:275
778620840,56pipewire-pulse0-21swapper/519:07:5611
778620830,66pipewire-pulse0-21swapper/219:08:538
903510570,0AudioIP~ackRPC0-2111:30:5014
128193725241,4sleep70-21swapper/719:06:5913
128284299510,22cyclictest0-21swapper/1519:29:087
1282827994746,1cyclictest841349-1kworker/u33:019:35:153
1282796994747,0cyclictest0-21swapper/319:35:159
136899420,0ntpd0-21swapper/923:31:1515
1282794994114,26cyclictest291irq_work/221:38:088
136899400,0ntpd0-21swapper/922:31:1515
136899400,0ntpd0-21swapper/921:31:1515
1282794994017,12cyclictest110650-21IPC8
1282829993813,25cyclictest991irq_work/1221:39:054
1282827993813,25cyclictest921irq_work/1121:32:213
1282815993813,24cyclictest711irq_work/821:42:2314
128279699380,12cyclictest0-21swapper/321:35:549
1282794993811,25cyclictest291irq_work/221:33:198
1282789993837,1cyclictest1862445-21ssh22:09:221
1282785993810,23cyclictest0-21swapper/021:43:230
1282829993711,25cyclictest0-21swapper/1221:42:044
1282827993712,25cyclictest921irq_work/1121:35:543
1282785993711,0cyclictest181irq_work/021:31:450
128283499360,0cyclictest0-21swapper/1323:27:285
1282808993610,25cyclictest571irq_work/621:56:3812
1282796993635,1cyclictest2294065-1kworker/u33:200:16:159
1282796993635,1cyclictest2294065-1kworker/u33:200:16:159
1282834993510,25cyclictest0-21swapper/1323:14:125
128281199359,25cyclictest1715057-21TaskCon~ller13
1282804993534,1cyclictest7342-21InputThread20:36:5711
1282799993510,25cyclictest0-21swapper/421:35:2810
1282789993510,24cyclictest0-21swapper/121:37:101
136899340,3ntpd81-21ksoftirqd/922:50:1915
1282829993432,0cyclictest0-21swapper/1220:37:454
1282827993434,0cyclictest0-21swapper/1100:16:163
1282827993434,0cyclictest0-21swapper/1100:16:153
128280899347,25cyclictest571irq_work/620:49:1612
1282794993427,6cyclictest0-21swapper/200:32:118
128283799337,25cyclictest0-21swapper/1421:40:466
1282829993333,0cyclictest841349-1kworker/u33:019:51:014
128282399339,0cyclictest851irq_work/1021:47:532
128280899332,25cyclictest571irq_work/621:40:2612
1282799993332,1cyclictest7342-21InputThread23:20:5110
1282796993333,0cyclictest2004928-21kworker/3:222:58:489
1282796993333,0cyclictest1769661-21kworker/3:021:41:329
128284299327,25cyclictest0-21swapper/1521:40:357
128283799320,32cyclictest0-21swapper/1400:19:436
128283799320,32cyclictest0-21swapper/1400:19:436
128283499327,25cyclictest0-21swapper/1300:09:075
128283499320,1cyclictest0-21swapper/1323:50:155
128282999320,0cyclictest0-21swapper/1200:00:204
1282827993232,0cyclictest8905-21Renderer22:58:483
1282827993232,0cyclictest0-21swapper/1121:41:323
128282399328,24cyclictest851irq_work/1021:37:132
1282799993232,0cyclictest7342-21InputThread22:47:2110
128278999323,5cyclictest778620pipewire-pulse20:13:391
128284299316,25cyclictest0-21swapper/1521:38:107
1282837993130,1cyclictest0-21swapper/1421:02:486
128283499316,25cyclictest0-21swapper/1321:46:205
1282834993131,0cyclictest0-21swapper/1323:34:205
128280899310,26cyclictest571irq_work/621:31:4712
903510300,1AudioIP~ackRPC8703-2111:30:502
1282842993028,0cyclictest0-21swapper/1500:36:557
128283499306,11cyclictest0-21swapper/1323:58:085
128283499300,25cyclictest8905-21Renderer20:39:185
1282829993029,0cyclictest0-21swapper/1221:02:484
128280899300,27cyclictest0-21swapper/621:37:0112
128280899300,0cyclictest0-21swapper/600:11:1712
136899290,2ntpd81-21ksoftirqd/921:45:4015
128283499295,11cyclictest0-21swapper/1300:20:065
1282834992926,3cyclictest0-21swapper/1321:15:385
1282834992924,5cyclictest0-21swapper/1300:19:465
1282834992924,5cyclictest0-21swapper/1300:19:465
128283499290,29cyclictest0-21swapper/1321:38:315
128283499290,28cyclictest1715039-21Isolated11:30:505
128281899293,3cyclictest81-21ksoftirqd/921:56:5615
128281199290,27cyclictest0-21swapper/722:07:0313
1282808992925,3cyclictest0-21swapper/623:52:0412
1282808992924,0cyclictest0-21swapper/622:12:1812
1282804992920,9cyclictest0-21swapper/522:25:3711
778620280,2pipewire-pulse8703-21firefox21:43:3415
778620280,1pipewire-pulse2366374-21ssh00:27:334
778620280,1pipewire-pulse2366374-21ssh00:27:334
778320280,26pipewire53-21ksoftirqd/500:36:0911
778320280,0pipewire0-21swapper/121:22:481
1282834992823,4cyclictest0-21swapper/1321:31:125
1282834992815,13cyclictest1185615-21IPC5
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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