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2023-01-27 - 16:07

x86 Intel Core i9-9900K @3600 MHz, Linux 5.15.2-rt19 (Profile)

Latency plot of system in rack #0, slot #3
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
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, Linux 4.9.20-rt16, x86_64 highest latencies:
System rack0slot3.osadl.org (updated Fri Jan 27, 2023 12:46:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26380932359339,14sleep60-21swapper/607:08:1812
26380812351331,14sleep120-21swapper/1207:08:084
26380162347328,13sleep40-21swapper/407:07:1210
26380652343323,14sleep140-21swapper/1407:07:546
26381532338300,32sleep90-21swapper/907:09:0915
26380422338319,13sleep100-21swapper/1007:07:332
26382182334315,13sleep80-21swapper/807:09:5614
26380732334313,15sleep50-21swapper/507:08:0111
26379622333312,14sleep70-21swapper/707:06:2613
26379162332310,14sleep10-21swapper/107:05:481
26381592331312,13sleep150-21swapper/1507:09:157
26347032331312,13sleep30-21swapper/307:05:039
26379002330310,14sleep20-21swapper/207:05:338
26381812324305,13sleep130-21swapper/1307:09:295
26379832323303,14sleep110-21swapper/1107:06:463
26379902315297,12sleep00-21swapper/007:06:520
263844999125105,20cyclictest0-21swapper/1310:49:135
26384499910016,42cyclictest0-21swapper/1308:23:175
26384499910016,42cyclictest0-21swapper/1308:23:165
2638449999959,20cyclictest0-21swapper/1310:06:565
263844999906,42cyclictest0-21swapper/1308:11:455
263844999880,46cyclictest0-21swapper/1311:17:235
263844999840,63cyclictest108-21ksoftirqd/1310:30:245
2638449998219,62cyclictest2733861-21sed09:05:005
2638449998120,41cyclictest0-21swapper/1310:15:165
2638449998119,41cyclictest0-21swapper/1309:11:015
2638449998119,20cyclictest0-21swapper/1310:36:245
2638449998118,42cyclictest0-21swapper/1311:22:575
2638449998018,42cyclictest0-21swapper/1310:23:465
2638449998018,42cyclictest0-21swapper/1309:26:015
2638449998018,42cyclictest0-21swapper/1308:45:325
2638449998018,20cyclictest0-21swapper/1312:09:245
2638449998018,20cyclictest0-21swapper/1311:50:085
2638449998017,42cyclictest0-21swapper/1310:29:015
2638449998017,42cyclictest0-21swapper/1310:29:015
2638449997939,0cyclictest0-21swapper/1309:20:565
2638449997918,20cyclictest0-21swapper/1312:24:125
2638449997917,20cyclictest0-21swapper/1312:39:015
2638449997917,20cyclictest0-21swapper/1311:26:355
2638449997917,20cyclictest0-21swapper/1308:40:235
2638449997816,20cyclictest0-21swapper/1310:13:325
2638449997816,20cyclictest0-21swapper/1308:34:385
2638449997716,20cyclictest0-21swapper/1311:47:335
2638449997716,20cyclictest0-21swapper/1311:47:325
2638449997716,20cyclictest0-21swapper/1307:46:105
2638449997715,42cyclictest0-21swapper/1307:58:455
2638449997714,42cyclictest0-21swapper/1308:29:325
2638449997412,21cyclictest0-21swapper/1308:35:405
2638449997411,21cyclictest0-21swapper/1311:08:405
2638449997313,19cyclictest0-21swapper/1309:59:525
2638449997311,20cyclictest0-21swapper/1309:30:395
2638449997311,20cyclictest0-21swapper/1309:30:385
2638449997310,21cyclictest0-21swapper/1308:53:555
2638449997310,21cyclictest0-21swapper/1308:53:545
263844999729,21cyclictest0-21swapper/1311:58:155
263844999729,21cyclictest0-21swapper/1309:44:575
2638449997210,21cyclictest0-21swapper/1312:03:595
263844999719,20cyclictest0-21swapper/1311:42:295
263844999719,20cyclictest0-21swapper/1310:55:595
263844999719,20cyclictest0-21swapper/1310:55:595
263844999716,21cyclictest0-21swapper/1308:17:325
263844999716,21cyclictest0-21swapper/1308:17:325
2638449997110,20cyclictest0-21swapper/1311:33:395
263844999708,21cyclictest0-21swapper/1308:03:285
263844999708,20cyclictest0-21swapper/1309:48:075
263844999707,21cyclictest0-21swapper/1307:19:145
263844999697,20cyclictest0-21swapper/1312:16:435
263844999697,20cyclictest0-21swapper/1311:01:475
263844999696,21cyclictest0-21swapper/1307:37:575
263844999696,21cyclictest0-21swapper/1307:37:565
263844999675,21cyclictest0-21swapper/1310:04:315
2638449996625,41cyclictest0-21swapper/1311:10:255
2638449996521,44cyclictest0-21swapper/1312:25:185
263844999650,44cyclictest0-21swapper/1310:51:315
263844999641,21cyclictest0-21swapper/1307:54:585
2638449996222,20cyclictest0-21swapper/1309:39:205
2638449996220,42cyclictest0-21swapper/1309:52:525
263844999620,20cyclictest0-21swapper/1307:22:275
2638449996158,3cyclictest108-21ksoftirqd/1307:14:265
2638449996141,20cyclictest2663627-21kworker/13:208:56:005
2638449996120,41cyclictest2663627-21kworker/13:210:42:005
2638449996120,41cyclictest0-21swapper/1312:30:375
2638449996120,41cyclictest0-21swapper/1312:30:375
2638449996019,21cyclictest0-21swapper/1307:25:285
2638449996019,20cyclictest0-21swapper/1309:18:185
2638449996018,42cyclictest0-21swapper/1311:36:045
2638449996018,21cyclictest0-21swapper/1308:07:105
2638449996015,21cyclictest0-21swapper/1307:30:465
2638449995918,41cyclictest0-21swapper/1312:12:495
2638449995918,21cyclictest0-21swapper/1309:07:325
2638449995817,41cyclictest0-21swapper/1307:40:205
263844799564,20cyclictest0-21swapper/1112:06:333
263844799554,51cyclictest0-21swapper/1108:15:033
263844799554,51cyclictest0-21swapper/1108:15:023
2638447995524,31cyclictest0-21swapper/1111:28:003
2638447995221,31cyclictest2984923-21kworker/11:211:58:543
2638447995120,31cyclictest94-21ksoftirqd/1110:17:023
2638447995120,31cyclictest1507902-21kworker/11:007:42:293
2638447995120,31cyclictest1507902-21kworker/11:007:36:523
2638447995120,31cyclictest1507902-21kworker/11:007:36:523
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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