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2022-06-27 - 16:54

x86 Intel Xeon-E31220L @2200 MHz, Linux 4.9.47-rt37 (Profile)

Latency plot of system in rack #5, 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 rack5slot0.osadl.org (updated Mon Jun 27, 2022 12:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3127121430,1sleep3940999cyclictest12:22:473
887021330,3sleep3940999cyclictest09:31:123
137221310,2sleep21371-21bash11:36:092
2742121250,3sleep1940799cyclictest09:32:551
2877421210,2sleep328771-21bash09:15:293
2991221190,3sleep1940799cyclictest10:16:521
2067221170,1sleep10-21swapper/109:20:371
9071210932,46sleep30-21swapper/307:09:163
8837210532,43sleep10-21swapper/107:06:181
627621040,3sleep20-21swapper/210:14:492
2672521040,1sleep026724-21sshd09:12:300
1239921040,2sleep112397-21bash11:51:461
241272980,2sleep2940899cyclictest12:25:072
243072910,2sleep224293-21sshd10:04:452
79752900,1sleep10-21swapper/110:23:401
187492900,3sleep30-21swapper/310:04:143
129882900,1sleep30-21swapper/310:06:363
61902890,1sleep06189-21sshd09:54:220
299642860,2sleep329954-21crond11:30:003
322512840,1sleep232247-21sshd12:08:152
233082840,2sleep123295-21sshd12:07:251
49792830,3sleep10-21swapper/110:56:231
201602830,2sleep20-21swapper/210:42:102
201602830,2sleep20-21swapper/210:42:092
141882830,0sleep041ktimersoftd/010:18:220
249302820,1sleep224928-21bash09:41:262
242652820,2sleep224263-21xargs07:40:242
80802810,2sleep38073-21sshd11:36:463
68432800,4sleep2940899cyclictest10:26:272
64962800,3sleep36490-21sshd09:22:193
104992800,2sleep310497-21sshd09:25:313
302012790,2sleep0940699cyclictest09:44:520
220302790,2sleep20-21swapper/212:13:122
163572790,1sleep016353-21sshd09:37:470
319152770,1sleep30-21swapper/311:41:503
266552770,1sleep10-21swapper/112:01:531
154892770,2sleep315484-21sshd10:18:293
4042750,1sleep2406-21id09:45:062
237312750,0sleep00-21swapper/011:49:580
304982740,2sleep31876-21nfsd09:50:373
284812740,2sleep0940699cyclictest10:34:140
262502730,2sleep20-21swapper/210:31:032
242232730,1sleep30-21swapper/311:20:393
257892720,1sleep10-21swapper/111:17:561
207722710,3sleep0940699cyclictest11:07:530
195622710,3sleep1940799cyclictest07:30:211
120492710,1sleep1940799cyclictest12:26:541
315782670,1sleep1940799cyclictest11:02:251
899826633,12sleep20-21swapper/207:08:182
253482650,3sleep2940899cyclictest10:36:492
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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