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2025-04-02 - 08:19
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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 Wed Apr 02, 2025 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
374799320,30cyclictest303-21systemd-journal19:20:020
374799300,29cyclictest27073-21sendmail-msp20:00:020
3760992927,1cyclictest10840-21sendmail-msp00:40:013
376099290,28cyclictest0-21swapper/321:20:123
376099290,28cyclictest0-21swapper/320:10:123
376099290,1cyclictest0-21swapper/321:00:133
3751992927,1cyclictest10842-21idleruntime-cro00:40:011
375199290,28cyclictest15412-21munin-run19:35:001
375199290,28cyclictest0-21swapper/121:00:121
375199290,28cyclictest0-21swapper/120:00:151
374799290,28cyclictest0-21swapper/023:35:150
376099280,28cyclictest15401-21perf19:35:013
376099280,0cyclictest0-21swapper/320:00:143
3756992827,1cyclictest14867-21cron20:50:012
375199280,27cyclictest0-21swapper/120:10:111
375199280,27cyclictest0-21swapper/100:30:131
3747992828,0cyclictest2589-21cron20:20:000
374799280,27cyclictest0-21swapper/020:20:130
374799280,0cyclictest0-21swapper/022:50:090
3760992727,0cyclictest2880-21apt-get20:20:143
3760992727,0cyclictest0-21swapper/321:15:113
3760992727,0cyclictest0-21swapper/319:15:123
376099270,0cyclictest0-21swapper/320:35:113
376099270,0cyclictest0-21swapper/300:30:143
3756992727,0cyclictest0-21swapper/221:30:132
3756992727,0cyclictest0-21swapper/221:30:132
3756992725,1cyclictest25579-21apt-get22:35:112
3756992725,1cyclictest14991-21cron22:10:002
375699270,0cyclictest0-21swapper/220:55:122
3751992727,0cyclictest0-21swapper/121:55:131
3751992727,0cyclictest0-21swapper/121:25:011
3751992727,0cyclictest0-21swapper/121:15:111
375199270,0cyclictest8171-21apt-get20:35:121
3747992727,0cyclictest32436-21apt-get21:30:120
3747992727,0cyclictest32436-21apt-get21:30:120
3747992727,0cyclictest0-21swapper/023:20:020
3747992727,0cyclictest0-21swapper/021:50:000
3747992727,0cyclictest0-21swapper/019:25:120
3760992626,0cyclictest0-21swapper/323:55:133
3760992626,0cyclictest0-21swapper/322:10:073
3760992626,0cyclictest0-21swapper/321:55:133
3760992626,0cyclictest0-21swapper/320:35:003
3760992624,1cyclictest15156-21apt-get20:50:193
3756992626,0cyclictest0-21swapper/222:00:102
3756992626,0cyclictest0-21swapper/219:35:142
3756992625,1cyclictest24744-21basename19:55:012
3756992625,0cyclictest20242-21apt-get22:20:132
3751992626,0cyclictest0-21swapper/120:20:131
3751992626,0cyclictest0-21swapper/119:15:121
3747992626,0cyclictest0-21swapper/019:30:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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