You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2023-06-01 - 17:34

x86 Intel Core i9-9900K @3600 MHz, Linux 5.15.49-rt47 (Profile)

Latency plot of system in rack #0, slot #7
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 highest latencies:
System rack0slot7.osadl.org (updated Thu Jun 01, 2023 00:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4739002181150,18sleep130-21swapper/1319:07:415
4737482180142,22sleep40-21swapper/419:06:2810
8321201610,130pipewire-pulse0-21swapper/1119:06:223
4576642143129,8sleep70-21swapper/719:05:1013
29980101420,134AudioIPC00-21swapper/1219:05:454
474460991360,135cyclictest0-21swapper/619:51:4312
474460991350,1cyclictest0-21swapper/621:13:2712
474460991350,1cyclictest0-21swapper/621:13:2712
457653213399,32sleep140-21swapper/1419:05:026
8325201320,121pipewire0-21swapper/019:07:420
8321201270,63pipewire-pulse0-21swapper/819:05:1614
8321201270,122pipewire-pulse0-21swapper/319:08:229
4744569912624,39cyclictest832520pipewire20:25:019
4744569912624,39cyclictest832520pipewire20:25:009
4739162120116,2sleep100-21swapper/1019:07:532
457654211652,52sleep150-21swapper/1519:05:037
4744569911411,62cyclictest952510AudioIP~ack11:22:119
474456991104,43cyclictest952510AudioIP~ack11:22:119
29980101030,93AudioIPC00-21swapper/219:09:338
474456991012,36cyclictest952510AudioIP~ack11:22:119
4744569910116,21cyclictest0-21swapper/322:19:419
474069210184,10sleep90-21swapper/919:09:4615
474456999935,21cyclictest2998010AudioIPC022:22:479
474470999796,1cyclictest0-21swapper/1320:22:055
474470999796,1cyclictest0-21swapper/1320:22:055
474456999735,20cyclictest0-21swapper/321:51:439
474456999652,41cyclictest2998010AudioIPC023:53:419
474456999552,19cyclictest141rcu_preempt20:29:039
474456999552,19cyclictest141rcu_preempt20:29:039
47367229591,2sleep60-21swapper/619:05:4112
474456999450,21cyclictest952510AudioIP~ack11:22:119
474456999432,21cyclictest832520pipewire20:16:459
474456999330,60cyclictest863143-21kworker/3:121:20:059
474456999328,41cyclictest956358-21kworker/3:022:43:599
47445699929,63cyclictest9231-21Cache29
47445699928,21cyclictest952510AudioIP~ack11:22:119
832520910,88pipewire0-21swapper/119:05:171
47445699897,24cyclictest141rcu_preempt21:18:219
47445699897,24cyclictest141rcu_preempt21:18:219
474456998927,42cyclictest565570-21kworker/3:020:11:499
474456998926,21cyclictest1683500-21Socket11:22:119
474456998926,21cyclictest1683500-21Socket11:22:119
47445699891,24cyclictest952510AudioIP~ack11:22:119
47445699886,40cyclictest1661291-21kworker/3:200:34:559
47445699885,42cyclictest812846-21/usr/sbin/munin20:45:279
47445699870,21cyclictest141rcu_preempt20:55:579
148499870,0ntpd0-21swapper/820:29:0914
148499870,0ntpd0-21swapper/820:29:0914
474456998523,41cyclictest952510AudioIP~ack11:22:119
474456998426,37cyclictest565570-21kworker/3:020:07:339
47445699840,21cyclictest141rcu_preempt23:31:259
474458998179,2cyclictest3921243-1kworker/u33:220:22:0511
474458998179,2cyclictest3921243-1kworker/u33:220:22:0411
47445699801,16cyclictest832520pipewire20:43:579
474456997935,42cyclictest39-21ksoftirqd/320:30:159
474456997816,21cyclictest0-21swapper/323:35:009
47445699781,36cyclictest952510AudioIP~ack11:22:119
474456997811,21cyclictest0-21swapper/300:07:099
47445699776,22cyclictest0-21swapper/323:20:399
474456997714,0cyclictest0-21swapper/323:05:019
474456997713,23cyclictest0-21swapper/321:38:479
474456997711,0cyclictest0-21swapper/319:52:539
47391127652,13sleep50-21swapper/519:07:4811
47446499750,54cyclictest0-21swapper/921:20:2115
474456997530,42cyclictest956358-21kworker/3:022:47:099
474456997513,42cyclictest0-21swapper/321:25:599
474456997512,42cyclictest0-21swapper/322:00:219
474456997512,21cyclictest0-21swapper/323:40:379
474464997433,20cyclictest0-21swapper/920:16:3115
474456997412,42cyclictest0-21swapper/321:56:129
47445699737,24cyclictest0-21swapper/322:58:479
47445699737,20cyclictest0-21swapper/300:01:039
474456997311,41cyclictest0-21swapper/321:07:029
474456997310,21cyclictest0-21swapper/319:43:089
474456997228,43cyclictest956358-21kworker/3:021:32:529
474456997210,41cyclictest0-21swapper/319:36:299
474456997210,0cyclictest0-21swapper/319:11:119
47445699719,20cyclictest0-21swapper/320:52:479
47445699719,20cyclictest0-21swapper/319:28:369
47445699718,22cyclictest565570-21kworker/3:020:01:519
47445699717,43cyclictest956358-21kworker/3:000:10:459
47445699709,20cyclictest141rcu_preempt23:14:319
47445699707,21cyclictest832120pipewire-pulse00:22:059
474464996928,21cyclictest0-21swapper/919:25:4815
47445699697,41cyclictest956358-21kworker/3:022:53:579
47445699697,41cyclictest956358-21kworker/3:022:53:579
47445699697,21cyclictest0-21swapper/319:15:099
47445699696,43cyclictest0-21swapper/323:48:239
47445699680,17cyclictest0-21swapper/322:26:139
47446999674,42cyclictest0-21swapper/1222:26:534
47445699674,42cyclictest0-21swapper/323:55:179
47445699660,3cyclictest0-21swapper/319:46:469
952510650,1AudioIP~ackRPC906923-2111:22:119
952510650,1AudioIP~ackRPC906923-2111:22:119
11864462650,0sleep130-21swapper/1322:20:315
47446999640,43cyclictest0-21swapper/1221:00:074
47445699642,20cyclictest0-21swapper/321:41:179
47446499630,18cyclictest0-21swapper/919:20:3815
474456996322,21cyclictest0-21swapper/300:29:279
47446499601,18cyclictest832120pipewire-pulse23:54:3715
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional