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2022-01-26 - 13:02

Intel(R) Xeon(R) CPU E3-1265L V2 @ 2.50GHz, Linux 4.14.28-rt23 (Profile)

Latency plot of system in rack #0, 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 --smi -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 50 highest latencies:
System rack0slot0.osadl.org (updated Wed Jan 26, 2022 00:45:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1347021210,1sleep10-21swapper/123:27:591
1925921150,0sleep50-21swapper/500:00:255
1925921150,0sleep50-21swapper/500:00:255
2578021140,1sleep21089-21rs:main2
2870121040,2sleep00-21swapper/019:05:170
1579221010,1sleep49983-21nfsd23:07:254
109102970,3sleep63082799cyclictest23:48:566
85432960,0sleep70-21swapper/723:01:117
85432960,0sleep70-21swapper/723:01:117
63552910,1sleep16312-21sshd21:36:451
206992910,0sleep70-21swapper/721:43:187
200812910,4sleep43081599cyclictest00:33:504
73602900,0sleep40-21swapper/423:53:354
73602900,0sleep40-21swapper/423:53:344
28062900,0sleep20-21swapper/200:12:162
57032890,4sleep53082099cyclictest23:30:275
40482890,1sleep30-21swapper/322:52:063
51462880,1sleep6680-21dbus-daemon00:17:496
165722880,1sleep50-21swapper/523:44:215
315582870,0sleep60-21swapper/623:43:436
9612860,0sleep20-21swapper/223:42:352
8362860,0sleep20-21swapper/223:59:332
249492860,1sleep00-21swapper/000:30:250
140032860,0sleep70-21swapper/723:52:187
140032860,0sleep70-21swapper/723:52:177
326742850,0sleep30-21swapper/321:24:373
167942850,1sleep081ktimersoftd/023:12:260
101522850,1sleep410145-21sshd22:22:254
97552830,1sleep01-21systemd21:22:340
314892830,0sleep10-21swapper/121:58:031
180382830,0sleep118002-21sshd22:07:081
180382830,0sleep118002-21sshd22:07:081
177352830,1sleep517731-21sshd22:45:275
68222820,1sleep46782-21sshd21:53:334
46972820,1sleep60-21swapper/600:26:076
294282810,1sleep729430-21kworker/u16:022:23:097
114532810,1sleep6671rcuc/623:02:316
114532810,1sleep6671rcuc/623:02:306
59262800,0sleep20-21swapper/223:04:442
59262800,0sleep20-21swapper/223:04:432
323592800,0sleep60-21swapper/621:47:176
319432800,1sleep70-21swapper/721:28:107
297102800,0sleep10-21swapper/122:17:101
297102800,0sleep10-21swapper/122:17:091
224172800,0sleep222388-21sshd21:27:502
219882800,1sleep3401rcuc/322:09:433
219882800,1sleep3401rcuc/322:09:423
53992790,1sleep35375-21rm23:34:253
93542780,1sleep79297-21sshd21:22:337
68252780,1sleep3411ktimersoftd/323:01:083
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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