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2024-11-22 - 11:35
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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 rack8slot4.osadl.org (updated Fri Nov 22, 2024 00:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20342052239178,20sleep10-21swapper/119:09:031
20320302225169,19sleep20-21swapper/219:05:432
20320342224172,16sleep60-21swapper/619:05:476
20341542222191,20sleep50-21swapper/519:08:195
20342732212182,19sleep70-21swapper/719:09:577
20341312212178,22sleep00-21swapper/019:08:060
20341622210183,17sleep40-21swapper/419:08:264
20320042209178,19sleep30-21swapper/319:05:193
203448299310,30cyclictest2151374-21debian-sa122:45:027
203446299310,3cyclictest2170455-21cron23:20:010
203448299300,2cyclictest2043126-21latency_hist19:25:017
2034478993027,2cyclictest2070038-21apt20:15:006
203447699300,29cyclictest2040422-21idleruntime-cro19:20:015
2034473993027,2cyclictest1609929-21systemd-journal22:00:014
203447399300,29cyclictest2195490-21latency_hist00:10:014
203447199300,29cyclictest2070580-21apt-get20:16:523
203447199300,29cyclictest2070035-21idleruntime-cro20:15:013
203447199300,29cyclictest0-21swapper/322:21:513
203447199300,29cyclictest0-21swapper/321:25:013
203447199300,1cyclictest2190070-21latency_hist00:00:013
2034467993028,1cyclictest0-21swapper/222:35:022
2034467993027,2cyclictest2097225-21sh21:05:012
2034465993028,1cyclictest0-21swapper/119:20:001
2034462993028,1cyclictest0-21swapper/020:20:010
203446299300,29cyclictest1609929-21systemd-journal00:20:010
2034482992927,1cyclictest0-21swapper/700:10:017
203448299290,28cyclictest0-21swapper/700:16:507
203448299290,1cyclictest2157282-21apt-get22:56:497
2034478992927,1cyclictest0-21swapper/622:56:486
203447899290,28cyclictest2043670-21apt-get19:26:506
203447899290,28cyclictest0-21swapper/620:51:516
203447899290,28cyclictest0-21swapper/620:51:516
203447899290,1cyclictest2192837-21awk00:05:016
2034476992927,1cyclictest0-21swapper/519:50:015
203447699290,28cyclictest2127676-21apt-get22:01:505
203447699290,28cyclictest2108825-21apt-get21:26:525
203447699290,28cyclictest0-21swapper/522:06:525
203447699290,28cyclictest0-21swapper/520:41:505
203447699290,28cyclictest0-21swapper/520:01:525
203447699290,28cyclictest0-21swapper/500:21:515
2034473992927,1cyclictest0-21swapper/421:36:484
203447399290,28cyclictest0-21swapper/423:06:514
203447399290,28cyclictest0-21swapper/400:16:514
2034471992927,1cyclictest0-21swapper/322:40:023
2034471992927,1cyclictest0-21swapper/320:56:493
203447199290,28cyclictest0-21swapper/322:11:523
2034467992927,1cyclictest2056586-21apt19:50:012
2034465992927,1cyclictest2062523-21apt-get20:01:521
203446599290,28cyclictest0-21swapper/122:01:501
203446599290,28cyclictest0-21swapper/120:06:501
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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