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2023-09-26 - 14:33
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 50 highest latencies:
System rack5slot3.osadl.org (updated Tue Sep 26, 2023 12:50:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3012122170,6sleep60-21swapper/607:05:226
3012122170,6sleep60-21swapper/607:05:216
3046629287,2sleep70-21swapper/707:05:247
3046629287,2sleep70-21swapper/707:05:247
3236828248,30sleep30-21swapper/307:08:573
3236828248,30sleep30-21swapper/307:08:573
3216128248,30sleep20-21swapper/207:05:592
3216128248,30sleep20-21swapper/207:05:592
3229428046,30sleep40-21swapper/407:07:544
3229428046,30sleep40-21swapper/407:07:544
3222128046,29sleep50-21swapper/507:06:505
3222128046,29sleep50-21swapper/507:06:505
3214227441,29sleep10-21swapper/107:05:411
3214227441,29sleep10-21swapper/107:05:411
3225227342,26sleep00-21swapper/007:07:180
3225227342,26sleep00-21swapper/007:07:170
157472520,0sleep233-21ksoftirqd/209:30:592
278412490,0sleep10-21swapper/111:28:041
34802480,0sleep20-21swapper/212:28:102
47302460,0sleep10-21swapper/111:51:171
276692460,0sleep30-21swapper/311:45:423
22772450,0sleep00-21swapper/010:55:200
78192430,0sleep30-21swapper/311:16:133
71662350,0sleep20-21swapper/211:35:012
41199335,26cyclictest0-21swapper/009:10:140
413993232,0cyclictest0-21swapper/208:50:232
411993210,18cyclictest3387-21latency_hist07:15:010
415993110,10cyclictest0-21swapper/407:10:284
412993131,0cyclictest0-21swapper/109:10:201
412993030,0cyclictest0-21swapper/109:05:241
411992916,1cyclictest121rcu_preempt07:15:280
411992824,3cyclictest0-21swapper/009:05:290
412992727,0cyclictest0-21swapper/107:30:281
417992510,0cyclictest0-21swapper/611:06:496
417992424,0cyclictest0-21swapper/607:15:036
411992415,8cyclictest31520-21sed08:50:290
418992321,1cyclictest9523-21apt-get09:10:217
418992221,0cyclictest0-21swapper/709:05:247
417992221,1cyclictest0-21swapper/609:10:216
413992222,0cyclictest0-21swapper/207:15:212
413992210,4cyclictest0-21swapper/207:30:332
417992121,0cyclictest0-21swapper/609:05:246
412992120,1cyclictest701-21avahi-daemon09:37:421
411992110,9cyclictest9-21ksoftirqd/011:00:310
418992010,2cyclictest0-21swapper/707:30:357
415992018,2cyclictest0-21swapper/411:28:224
414992010,3cyclictest0-21swapper/307:30:353
417991910,8cyclictest0-21swapper/610:15:336
417991910,4cyclictest0-21swapper/608:50:236
41699190,9cyclictest0-21swapper/507:15:215
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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