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2024-04-26 - 02:50
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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 rackeslot5.osadl.org (updated Thu Apr 25, 2024 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
662399332,2cyclictest1-21systemd08:40:013
661999330,0cyclictest12578-21apt-get09:25:102
662399320,31cyclictest0-21swapper/312:30:133
661999320,29cyclictest2989-21ssh11:36:262
661999320,1cyclictest0-21swapper/212:15:232
6623993129,1cyclictest18530-21sh10:42:253
6623993129,1cyclictest0-21swapper/309:49:093
6623993129,1cyclictest0-21swapper/309:17:093
662399310,30cyclictest31125-21diskmemload11:35:193
662399310,30cyclictest28985-21dump-pmu-power10:55:003
662399310,30cyclictest22825-21ssh11:23:283
662399310,30cyclictest16133-21sh12:26:063
6619993129,1cyclictest90022sleep211:43:442
6619993128,2cyclictest0-21swapper/212:07:262
6619993127,3cyclictest31125-21diskmemload09:16:332
6619993127,3cyclictest0-21swapper/210:57:002
661999310,31cyclictest0-21swapper/211:50:562
661999310,0cyclictest31125-21diskmemload11:02:332
661999310,0cyclictest31125-21diskmemload10:53:072
6618993129,1cyclictest4454-21sh10:26:171
6618993128,1cyclictest7025-21ssh12:16:011
661899310,30cyclictest26748-21sh10:15:191
661899310,30cyclictest13010-21sh11:47:521
661399310,30cyclictest22890-21sh11:23:340
6623993028,1cyclictest31125-21diskmemload11:00:243
6623993028,1cyclictest0-21swapper/311:06:313
662399300,2cyclictest14753-21ssh10:02:123
662399300,29cyclictest31125-21diskmemload11:13:193
662399300,29cyclictest31125-21diskmemload10:45:543
662399300,29cyclictest31125-21diskmemload10:10:483
662399300,29cyclictest15411-21sendmail10:40:013
662399300,1cyclictest30446-21ntp_states10:55:193
662399300,1cyclictest23882-21fschecks_count12:35:133
6619993028,2cyclictest31125-21diskmemload11:55:322
6619993028,2cyclictest31125-21diskmemload11:55:322
6619993028,2cyclictest10915-21ssh09:58:322
6619993028,2cyclictest0-21swapper/212:38:082
6619993028,2cyclictest0-21swapper/210:11:552
6619993028,2cyclictest0-21swapper/209:40:472
6619993028,2cyclictest0-21swapper/208:50:132
6619993028,1cyclictest19092-21cron08:45:002
6619993028,1cyclictest0-21swapper/212:21:212
6619993028,0cyclictest0-21swapper/210:24:372
6619993027,3cyclictest31125-21diskmemload12:31:152
6619993027,3cyclictest31125-21diskmemload12:27:202
6619993027,3cyclictest0-21swapper/212:04:392
6619993027,2cyclictest0-21swapper/210:03:512
661999300,2cyclictest2982-21if_enp1s010:25:152
661999300,2cyclictest21549-21ssh11:21:002
661999300,29cyclictest31125-21diskmemload09:10:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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