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2023-03-21 - 06:05

x86 Intel Xeon E3-1220L V2 @2300 MHz, Linux 4.9.47-rt37 (Profile)

Latency plot of system in rack #a, 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, highest latencies:
System rackaslot0.osadl.org (updated Tue Mar 21, 2023 00:44:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
256652920,0sleep10-21swapper/122:45:391
283822640,1sleep00-21swapper/023:38:540
134662560,0sleep30-21swapper/323:20:543
325032540,1sleep232472-21sshd22:29:532
301912540,0sleep10-21swapper/123:35:431
126652540,1sleep00-21swapper/021:44:090
295842520,0sleep129531-21sshd00:16:521
233742520,1sleep223379-21bash23:05:272
127592500,1sleep119-21rcuc/100:00:221
127592500,1sleep119-21rcuc/100:00:221
90712490,0sleep00-21swapper/000:35:580
45322490,1sleep24528-21bash22:20:242
320822490,1sleep332081-21id21:26:013
198202480,0sleep00-21swapper/022:45:110
1337624825,19sleep00-21swapper/019:07:320
1288524826,18sleep30-21swapper/319:05:273
122442480,0sleep00-21swapper/021:50:420
122442480,0sleep00-21swapper/021:50:420
1143724826,18sleep20-21swapper/219:05:062
1345324724,19sleep10-21swapper/119:08:291
48352450,2sleep11383499cyclictest00:35:321
33832450,2sleep01383399cyclictest22:50:110
101162430,0sleep20-21swapper/223:10:442
39712420,0sleep23972-21sshd23:46:252
238632420,0sleep10-21swapper/100:34:121
278022360,0sleep00-21swapper/023:22:230
111622220,1sleep011153-21cp21:27:140
1383399210,20cyclictest8278-21sshd21:57:110
136022210,1sleep013575-21sshd23:07:450
243502200,1sleep024317-21sshd23:55:010
13836992018,1cyclictest0-21swapper/323:39:323
13833992012,5cyclictest8914-21bash00:00:010
13833992012,5cyclictest8914-21bash00:00:010
75812190,2sleep20-21swapper/200:32:162
13835991918,1cyclictest0-21swapper/222:53:152
13835991918,1cyclictest0-21swapper/200:39:322
13835991917,1cyclictest0-21swapper/223:20:162
13833991916,2cyclictest16388-21bash23:57:220
83762180,2sleep119-21rcuc/123:30:181
1383399180,12cyclictest0-21swapper/022:41:560
215732170,2sleep337-21rcuc/322:48:413
176542170,0sleep00-21swapper/021:34:350
13835991715,2cyclictest0-21swapper/223:51:442
13834991716,1cyclictest2993-21sshd22:20:121
13834991715,1cyclictest11026-21sshd22:17:381
13833991713,2cyclictest11752-21sshd21:17:130
175622160,0sleep00-21swapper/021:24:390
1383499160,1cyclictest1495-21nfsd22:04:261
1383399168,4cyclictest0-21swapper/023:00:240
13833991613,1cyclictest16871-21bash23:40:560
13833991611,4cyclictest0-21swapper/022:16:390
1383399160,11cyclictest0-21swapper/019:46:200
78792150,0sleep10-21swapper/121:36:531
327482150,1sleep232749-21bash22:49:522
1383599158,4cyclictest0-21swapper/223:16:062
13835991513,1cyclictest0-21swapper/223:36:192
1383499159,5cyclictest0-21swapper/123:45:561
13834991514,1cyclictest21691-21sshd23:21:461
13834991510,2cyclictest6906-21sshd21:40:121
13833991513,2cyclictest24566-21sshd21:45:190
13833991512,2cyclictest10756-21sshd00:07:250
1383399150,14cyclictest23212-21memory22:05:310
1383399150,12cyclictest1579-21sshd23:49:000
287282140,0sleep20-21swapper/222:02:462
167182140,1sleep016720-21ls20:20:250
1383699149,5cyclictest0-21swapper/321:53:213
1383699149,5cyclictest0-21swapper/321:53:213
13836991412,1cyclictest0-21swapper/322:11:353
1383699140,13cyclictest27996-21bash21:49:053
1383699140,13cyclictest0-21swapper/323:17:473
1383699140,13cyclictest0-21swapper/300:16:583
1383699140,12cyclictest0-21swapper/323:55:563
1383599149,4cyclictest0-21swapper/223:25:542
1383599149,2cyclictest0-21swapper/222:32:092
13835991412,1cyclictest29391-21sshd22:09:392
13835991412,1cyclictest0-21swapper/221:57:022
13835991412,1cyclictest0-21swapper/221:39:472
1383599140,13cyclictest0-21swapper/221:29:142
1383499149,4cyclictest0-21swapper/123:29:451
1383499141,10cyclictest114750irq/25-eth023:15:541
13834991410,3cyclictest21-21ksoftirqd/121:48:381
1383499140,13cyclictest28747-21sshd00:05:431
1383499140,13cyclictest0-21swapper/122:12:511
1383499140,13cyclictest0-21swapper/100:29:071
1383399149,4cyclictest0-21swapper/022:30:590
1383399149,4cyclictest0-21swapper/022:26:120
1383399149,2cyclictest0-21swapper/022:58:570
13833991412,2cyclictest16444-21sshd00:26:080
13833991411,2cyclictest0-21swapper/000:10:190
13833991411,2cyclictest0-21swapper/000:10:190
1383399140,13cyclictest8083-21sshd23:26:550
1383399140,12cyclictest19243-21sshd00:30:070
1383399140,11cyclictest0-21swapper/023:31:210
1383399140,11cyclictest0-21swapper/022:04:550
1383699139,3cyclictest0-21swapper/300:32:123
1383699139,1cyclictest0-21swapper/321:17:203
1383699138,4cyclictest0-21swapper/322:36:483
1383699138,2cyclictest30095-21sshd22:56:103
1383699138,2cyclictest25953-21sshd23:09:083
1383699138,2cyclictest114750irq/25-eth023:14:253
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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