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2024-07-27 - 08:12
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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 Sat Jul 27, 2024 00:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28294002234174,48sleep00-21swapper/019:09:140
28294222233172,21sleep20-21swapper/219:09:312
28294132228168,20sleep40-21swapper/419:09:264
28272612222170,17sleep50-21swapper/519:06:225
28294352218188,20sleep60-21swapper/619:09:446
28294032217185,20sleep30-21swapper/319:09:163
28293922206175,19sleep10-21swapper/119:09:071
28292952205177,17sleep70-21swapper/719:07:447
282967699332,3cyclictest2851785-21sh19:50:004
2829676993227,4cyclictest2966666-21apt23:20:004
282966999320,31cyclictest2996899-21idleruntime-cro00:15:011
282968699310,30cyclictest2931151-21sh22:15:016
282968199310,30cyclictest2920953-21apt-get21:57:095
2829676993126,4cyclictest0-21swapper/420:50:024
282967699310,28cyclictest0-21swapper/420:52:104
2829674993128,2cyclictest2996900-21apt00:15:003
2829689993026,3cyclictest3010867-21sh00:40:017
282968999300,29cyclictest2988624-21gpgv00:00:007
282968699300,29cyclictest2999593-21latency_hist00:20:016
282968699300,29cyclictest2994206-21sh00:10:016
282968199300,2cyclictest367-21systemd-journal23:55:015
282968199300,29cyclictest0-21swapper/520:25:015
282967699300,29cyclictest2904555-21apt-get21:27:104
2829674993028,1cyclictest2933841-21sh22:20:023
2829674993027,3cyclictest0-21swapper/300:10:003
282967499300,2cyclictest2936548-21latency_hist22:25:013
282967499300,29cyclictest2950273-21munin-run22:50:003
282967499300,29cyclictest0-21swapper/320:50:013
282967499300,29cyclictest0-21swapper/300:22:093
282967299300,29cyclictest367-21systemd-journal23:25:002
282967299300,29cyclictest0-21swapper/219:30:012
282966999300,1cyclictest0-21swapper/122:20:021
2829689992928,1cyclictest0-21swapper/721:20:017
2829689992927,1cyclictest3003120-21apt-get00:27:097
2829689992927,1cyclictest2950262-21idleruntime-cro22:50:017
282968999290,29cyclictest3008194-21munin-run00:35:017
282968999290,28cyclictest0-21swapper/723:37:087
282968999290,28cyclictest0-21swapper/723:07:097
282968999290,1cyclictest2980966-21apt-get23:47:097
282968999290,1cyclictest2857143-21cron20:00:017
282968699290,28cyclictest0-21swapper/623:45:016
282968699290,28cyclictest0-21swapper/621:42:096
282968699290,1cyclictest0-21swapper/622:02:106
282968699290,1cyclictest0-21swapper/621:20:016
2829681992927,1cyclictest2953513-21apt-get22:57:115
282968199290,28cyclictest0-21swapper/522:37:125
282968199290,28cyclictest0-21swapper/520:57:105
282968199290,28cyclictest0-21swapper/520:02:105
2829676992927,1cyclictest0-21swapper/400:00:004
282967699290,28cyclictest0-21swapper/419:42:124
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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