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2021-01-21 - 02:26

Intel(R) Xeon(R) CPU E3-1220L V2 @ 2.30GHz, Linux 4.19.8-rt6 (Profile)

Latency plot of system in rack #4, 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 50 highest latencies:
System rack4slot0.osadl.org (updated Thu Jan 21, 2021 00:44:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
233621080,0sleep10-21swapper/100:36:141
261812830,0sleep00-21swapper/000:19:340
303372810,0sleep30-21swapper/323:02:513
104932780,0sleep20-21swapper/223:09:552
306422730,0sleep30-21swapper/321:36:223
295732680,0sleep10-21swapper/100:25:091
122232680,0sleep20-21swapper/221:44:352
223012670,0sleep20-21swapper/221:23:472
179372670,0sleep30-21swapper/322:50:413
143042670,0sleep0111rcuc/022:12:580
12652670,0sleep3391rcuc/323:55:093
279192660,1sleep227923-21latency_hist20:45:002
218042610,0sleep20-21swapper/222:14:212
2238924529,10sleep00-21swapper/019:09:280
2197824529,9sleep20-21swapper/219:06:082
2188424530,8sleep30-21swapper/319:05:053
2230324326,10sleep10-21swapper/119:08:281
118512430,1sleep211844-21sshd00:22:212
74602270,0sleep00-21swapper/021:10:100
105642270,0sleep00-21swapper/021:21:410
54042260,0sleep10-21swapper/123:09:061
69442230,1sleep26907-21sshd23:25:142
81592220,0sleep30-21swapper/323:40:503
297902220,1sleep229777-21sshd21:30:362
244382220,0sleep00-21swapper/000:14:100
202012220,1sleep1231rcuc/100:08:211
200762220,1sleep120073-21sshd23:22:121
295032210,1sleep10-21swapper/122:10:031
305052200,0sleep10-21swapper/123:29:061
172882200,0sleep00-21swapper/022:02:160
97072190,0sleep00-21swapper/023:35:580
270222180,0sleep20-21swapper/200:29:592
22551991815,1cyclictest12698-21sshd22:07:043
2255199180,16cyclictest30479-21kworker/3:123:25:273
2255099180,17cyclictest32175-21sshd22:42:452
22551991715,1cyclictest718-40kipmi022:46:193
2255199170,13cyclictest0-21swapper/322:20:093
22550991714,2cyclictest14269-21turbostat22:40:002
22546991714,1cyclictest26654-21sshd00:04:191
2255199168,7cyclictest9858-21kworker/3:021:23:383
2255199168,7cyclictest4229-21kworker/3:122:30:333
2255099164,10cyclictest23640-21rm00:19:092
22550991615,0cyclictest718-40kipmi019:55:072
2254699160,15cyclictest10793-21sshd21:55:251
2255199157,7cyclictest6599-21kworker/3:321:56:323
2255199155,9cyclictest8156-21sshd00:11:313
22551991513,1cyclictest101050irq/24-eno121:19:423
2255199151,1cyclictest22818-21consoletype23:17:173
2255199150,9cyclictest1262-21lspci21:14:493
2255199150,1cyclictest0-21swapper/320:15:053
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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