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2022-06-30 - 22:44

x86 Intel Xeon E3-1270 v2 @3500 MHz, Linux 4.19.25-rt16 (Profile)

Latency plot of system in rack #3, slot #0
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
Characteristics of the 100, Linux 4.9.20-rt16, x86_64 highest latencies:
System rack3slot0.osadl.org (updated Thu Jun 30, 2022 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
102662810,4sleep70-21swapper/706:59:507
102662810,4sleep70-21swapper/706:59:507
22502440,0sleep30-21swapper/308:39:563
1171124130,8sleep20-21swapper/207:04:032
1171124130,8sleep20-21swapper/207:04:032
291622400,0sleep50-21swapper/510:59:005
265682400,2sleep31187799cyclictest11:29:333
265682400,2sleep31187799cyclictest11:29:333
72732380,0sleep50-21swapper/507:54:335
1017922810,13sleep50-21swapper/506:59:495
1017922810,13sleep50-21swapper/506:59:495
115722275,8sleep10-21swapper/107:02:101
115722275,8sleep10-21swapper/107:02:101
114952244,16sleep00-21swapper/007:01:040
114952244,16sleep00-21swapper/007:01:040
11878992323,0cyclictest15750irq/23-ehci_hcd07:27:174
1164222312,8sleep30-21swapper/307:03:083
1164222312,8sleep30-21swapper/307:03:083
115392209,8sleep40-21swapper/407:01:404
115392209,8sleep40-21swapper/407:01:404
93552186,9sleep60-21swapper/606:59:426
93552186,9sleep60-21swapper/606:59:426
322952170,0sleep50-21swapper/512:07:475
11878991616,0cyclictest0-21swapper/409:28:414
11878991616,0cyclictest0-21swapper/409:28:414
11878991616,0cyclictest0-21swapper/409:15:154
11878991616,0cyclictest0-21swapper/409:15:154
1187899160,16cyclictest0-21swapper/411:57:024
1187599166,1cyclictest25-21ksoftirqd/112:16:071
1187599166,1cyclictest25-21ksoftirqd/112:16:071
1187599164,3cyclictest25-21ksoftirqd/111:18:401
1187599164,3cyclictest25-21ksoftirqd/111:18:401
11878991515,0cyclictest15750irq/23-ehci_hcd07:40:554
1187899151,1cyclictest49-21ksoftirqd/410:32:214
1187899151,1cyclictest49-21ksoftirqd/410:32:214
11877991513,1cyclictest41-21ksoftirqd/312:19:343
11877991513,1cyclictest41-21ksoftirqd/312:19:343
1187599155,1cyclictest25-21ksoftirqd/111:36:351
1187599155,1cyclictest25-21ksoftirqd/111:36:351
11875991511,1cyclictest25-21ksoftirqd/109:57:151
11875991511,1cyclictest25-21ksoftirqd/109:57:151
317282140,0sleep70-21swapper/708:34:557
317282140,0sleep70-21swapper/708:34:557
1188199145,9cyclictest31087-21kworker/7:012:33:287
1188199144,2cyclictest13192-21kworker/7:111:50:507
1188199140,3cyclictest0-21swapper/707:46:087
1188099140,14cyclictest0-21swapper/610:19:516
1188099140,14cyclictest0-21swapper/609:07:566
1188099140,14cyclictest0-21swapper/609:07:566
1188099140,13cyclictest13976-21runrttasks12:21:286
1188099140,13cyclictest13976-21runrttasks12:21:286
11878991414,0cyclictest0-21swapper/412:13:524
11878991414,0cyclictest0-21swapper/411:00:094
11878991414,0cyclictest0-21swapper/408:35:034
11878991414,0cyclictest0-21swapper/408:35:034
11878991414,0cyclictest0-21swapper/408:08:084
11878991414,0cyclictest0-21swapper/408:08:084
1187599146,1cyclictest25-21ksoftirqd/111:08:491
1187599146,1cyclictest25-21ksoftirqd/111:08:491
1187599146,1cyclictest25-21ksoftirqd/109:41:571
1187599145,1cyclictest25-21ksoftirqd/109:26:551
1187599145,1cyclictest25-21ksoftirqd/109:26:551
1187599145,1cyclictest25-21ksoftirqd/109:23:491
11875991412,1cyclictest25-21ksoftirqd/107:04:521
1187599141,2cyclictest1-21systemd11:50:421
1187599140,2cyclictest25-21ksoftirqd/111:10:081
1187599140,2cyclictest25-21ksoftirqd/111:10:081
1188199135,8cyclictest11696-21kworker/7:007:06:017
1188099130,6cyclictest0-21swapper/610:56:536
1188099130,5cyclictest0-21swapper/610:39:036
1188099130,13cyclictest0-21swapper/611:56:296
1188099130,13cyclictest0-21swapper/610:46:016
1188099130,13cyclictest0-21swapper/610:29:036
1187899136,6cyclictest49-21ksoftirqd/411:59:464
11878991313,0cyclictest15750irq/23-ehci_hcd11:28:174
11878991313,0cyclictest15750irq/23-ehci_hcd11:28:174
11878991313,0cyclictest0-21swapper/409:01:554
11878991313,0cyclictest0-21swapper/407:54:314
11878991312,1cyclictest0-21swapper/410:09:494
11878991311,1cyclictest49-21ksoftirqd/411:29:554
11878991311,1cyclictest49-21ksoftirqd/411:29:554
1187899130,2cyclictest49-21ksoftirqd/411:14:304
1187899130,2cyclictest49-21ksoftirqd/411:14:304
1187899130,13cyclictest0-21swapper/408:48:294
1187899130,13cyclictest0-21swapper/408:48:294
1187599136,2cyclictest25-21ksoftirqd/111:29:211
1187599136,2cyclictest25-21ksoftirqd/111:29:211
1187599135,1cyclictest25-21ksoftirqd/111:56:051
1187599135,1cyclictest25-21ksoftirqd/110:59:451
1187599135,1cyclictest25-21ksoftirqd/108:24:501
1187599135,1cyclictest25-21ksoftirqd/108:24:501
1187599134,3cyclictest25-21ksoftirqd/110:18:421
1187599134,3cyclictest25-21ksoftirqd/109:46:171
1187599134,3cyclictest25-21ksoftirqd/109:46:171
1187599134,3cyclictest25-21ksoftirqd/109:04:451
1187599134,3cyclictest25-21ksoftirqd/109:04:451
11875991313,0cyclictest0-21swapper/110:38:301
11875991311,1cyclictest25-21ksoftirqd/110:46:381
11875991311,1cyclictest25-21ksoftirqd/110:39:401
1187599131,2cyclictest25-21ksoftirqd/112:04:591
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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