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2023-02-05 - 12:53

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 50 highest latencies:
System rack0slot3.osadl.org (updated Sun Feb 05, 2023 00:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6724432413393,14sleep30-21swapper/319:06:569
6724362400379,14sleep130-21swapper/1319:06:505
6725032393374,13sleep60-21swapper/619:07:4812
6724402362343,13sleep00-21swapper/019:06:530
6726162353313,13sleep100-21swapper/1019:09:122
6725512346326,14sleep150-21swapper/1519:08:297
6723722345326,13sleep90-21swapper/919:05:5715
6724272343324,13sleep40-21swapper/419:06:4110
6725632341322,13sleep80-21swapper/819:08:3814
6723462339309,24sleep10-21swapper/119:05:341
6724102333313,14sleep70-21swapper/719:06:2813
6723942333314,13sleep120-21swapper/1219:06:174
6726082331312,13sleep50-21swapper/519:09:0711
6724942331312,13sleep140-21swapper/1419:07:406
6726462329310,13sleep110-21swapper/1119:09:293
6724812326306,14sleep20-21swapper/219:07:278
672942991149,62cyclictest372065-21kworker/11:222:57:033
6729429910117,42cyclictest0-21swapper/1100:30:443
672942999210,20cyclictest141rcu_preempt00:35:443
672942998726,16cyclictest0-21swapper/1100:20:363
67294299863,21cyclictest0-21swapper/1120:41:413
672942998343,20cyclictest372065-21kworker/11:220:03:243
672942998120,20cyclictest1074424-21ssh00:27:003
672942998119,21cyclictest94-21ksoftirqd/1100:06:003
672942998119,21cyclictest0-21swapper/1121:10:213
672942998119,20cyclictest0-21swapper/1122:02:393
672942998119,20cyclictest0-21swapper/1120:20:213
672942998039,41cyclictest372065-21kworker/11:220:26:113
672942998018,20cyclictest0-21swapper/1122:27:453
672942998018,20cyclictest0-21swapper/1119:29:513
672942998017,21cyclictest0-21swapper/1123:15:013
672942998017,21cyclictest0-21swapper/1122:46:373
672942998017,21cyclictest0-21swapper/1122:11:293
672942998017,21cyclictest0-21swapper/1121:59:273
672942998017,21cyclictest0-21swapper/1121:59:273
672942998017,21cyclictest0-21swapper/1121:34:093
672942998017,21cyclictest0-21swapper/1121:19:493
672942997917,21cyclictest0-21swapper/1123:08:353
672942997917,21cyclictest0-21swapper/1120:51:053
672942997917,21cyclictest0-21swapper/1119:13:033
672942997917,21cyclictest0-21swapper/1100:04:113
672942997916,21cyclictest0-21swapper/1121:47:253
672942997916,21cyclictest0-21swapper/1119:32:173
672942997915,22cyclictest0-21swapper/1122:52:353
672942997816,21cyclictest0-21swapper/1122:32:333
672942997816,20cyclictest0-21swapper/1121:42:323
672942997816,20cyclictest0-21swapper/1119:37:093
672942997815,21cyclictest0-21swapper/1123:36:563
672942997815,21cyclictest0-21swapper/1120:39:073
672942997815,21cyclictest0-21swapper/1120:39:073
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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