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2021-10-27 - 00:09

Intel(R) Core(TM) i5-6440EQ CPU @ 2.70GHz, Linux 4.9.47-rt37 (Profile)

Latency plot of system in rack #5, slot #2
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 rack5slot2.osadl.org (updated Tue Oct 26, 2021 12:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
83112203187,11sleep10-21swapper/107:09:081
83572193160,28sleep30-21swapper/307:09:423
61512181164,12sleep00-21swapper/007:05:020
80562176158,13sleep20-21swapper/207:05:482
133642680,0sleep10-21swapper/111:28:021
20532450,0sleep30-21swapper/312:37:213
197212450,0sleep30-21swapper/307:30:183
277942440,0sleep00-21swapper/008:50:210
28302130,0sleep00-21swapper/009:05:200
4340290,0sleep20-21swapper/210:06:122
85579981,4cyclictest21391-21awk08:40:000
85679970,7cyclictest0-21swapper/309:20:123
85679960,6cyclictest30426-21sh10:02:513
85589961,2cyclictest0-21swapper/112:20:131
85579963,3cyclictest1053-21ntp_states11:20:290
85579962,4cyclictest0-21swapper/012:13:570
85579962,4cyclictest0-21swapper/012:05:290
85579962,4cyclictest0-21swapper/011:51:570
85579962,4cyclictest0-21swapper/011:47:050
85579960,6cyclictest7455-21irqstats11:05:300
85579960,6cyclictest30089-21hddtemp_smartct07:50:220
85579960,6cyclictest0-21swapper/012:39:330
85579960,6cyclictest0-21swapper/012:31:000
85579960,6cyclictest0-21swapper/012:22:130
85579960,6cyclictest0-21swapper/012:00:450
85579960,6cyclictest0-21swapper/011:55:250
85579960,6cyclictest0-21swapper/009:58:300
85579960,6cyclictest0-21swapper/009:40:300
85579960,6cyclictest0-21swapper/009:23:140
85579960,6cyclictest0-21swapper/009:12:060
85579960,1cyclictest19685-21ssh11:12:420
85579960,1cyclictest0-21swapper/012:25:170
85579960,1cyclictest0-21swapper/012:18:170
85579960,1cyclictest0-21swapper/010:47:040
85679955,0cyclictest7385-21kworker/3:111:01:523
85679955,0cyclictest7385-21kworker/3:109:32:183
85679955,0cyclictest7385-21kworker/3:108:47:303
85679955,0cyclictest7385-21kworker/3:108:36:193
85679955,0cyclictest7385-21kworker/3:108:25:073
85679955,0cyclictest7385-21kworker/3:108:02:423
85679955,0cyclictest7385-21kworker/3:107:51:343
85679955,0cyclictest7385-21kworker/3:107:17:573
85679955,0cyclictest0-21swapper/311:30:093
85679950,5cyclictest23148-21apt-get11:15:013
85619955,0cyclictest0-21swapper/210:14:252
85619955,0cyclictest0-21swapper/209:40:492
85619950,4cyclictest16467-21ssh11:30:132
85619950,0cyclictest0-21swapper/211:52:212
85589950,5cyclictest0-21swapper/110:32:391
85579952,3cyclictest0-21swapper/009:45:050
85579952,3cyclictest0-21swapper/009:35:420
85579950,5cyclictest0-21swapper/011:40:090
85579950,5cyclictest0-21swapper/011:35:010
85579950,5cyclictest0-21swapper/011:25:180
85579950,5cyclictest0-21swapper/011:15:340
85579950,5cyclictest0-21swapper/011:00:020
85579950,5cyclictest0-21swapper/010:56:540
85579950,5cyclictest0-21swapper/010:50:140
85579950,5cyclictest0-21swapper/010:40:020
85579950,5cyclictest0-21swapper/010:35:260
85579950,5cyclictest0-21swapper/010:30:340
85579950,5cyclictest0-21swapper/010:25:140
85579950,5cyclictest0-21swapper/010:20:060
85579950,5cyclictest0-21swapper/010:10:010
85579950,5cyclictest0-21swapper/010:05:060
85579950,5cyclictest0-21swapper/010:00:140
85579950,5cyclictest0-21swapper/009:30:050
85579950,5cyclictest0-21swapper/009:15:090
85579950,5cyclictest0-21swapper/008:05:010
85579950,5cyclictest0-21swapper/008:00:010
85579950,5cyclictest0-21swapper/007:40:180
85579950,5cyclictest0-21swapper/007:30:220
85579950,1cyclictest0-21swapper/011:31:210
85579950,1cyclictest0-21swapper/007:35:220
85579950,1cyclictest0-21swapper/007:20:020
85579950,0cyclictest18874-21ssh10:15:220
85579950,0cyclictest0-21swapper/009:50:140
85579950,0cyclictest0-21swapper/009:25:060
24503250,1sleep324505-21fschecks_time09:40:263
11058250,0sleep10-21swapper/110:30:011
85679944,0cyclictest7385-21kworker/3:110:05:533
85679944,0cyclictest7385-21kworker/3:108:13:553
85679944,0cyclictest0-21swapper/312:28:033
85679944,0cyclictest0-21swapper/312:23:153
85679944,0cyclictest0-21swapper/312:10:093
85679943,1cyclictest17262-21grep08:30:173
85679940,4cyclictest595-21tail09:45:223
85679940,4cyclictest27782-21diskstats10:20:373
85679940,4cyclictest13836-21ssh11:28:243
85679940,4cyclictest0-21swapper/312:01:523
85679940,4cyclictest0-21swapper/311:59:353
85679940,4cyclictest0-21swapper/311:50:143
85679940,4cyclictest0-21swapper/311:46:353
85679940,4cyclictest0-21swapper/311:10:153
85679940,4cyclictest0-21swapper/310:42:303
85679940,4cyclictest0-21swapper/309:35:133
85679940,4cyclictest0-21swapper/308:40:153
85679940,4cyclictest0-21swapper/307:40:133
85679940,3cyclictest7202-21hddtemp_smartct11:05:253
85679940,3cyclictest5859-21ssh11:23:473
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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