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2025-07-12 - 08:36
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 20 highest latencies:
System rack2slot7.osadl.org (updated Sat Jul 12, 2025 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3372143997310,39cyclictest0-21swapper/023:04:070
337214399553,15cyclictest3419664-21fschecks_time21:21:560
3372143995111,37cyclictest0-21swapper/023:01:570
3372145995025,20cyclictest3412658-21diskmemload21:39:042
3372143994015,5cyclictest0-21swapper/021:39:010
337214399375,21cyclictest3422004-21sendmail-msp21:24:050
3372143993726,8cyclictest3440936-21latency_hist21:44:020
337214399371,21cyclictest0-21swapper/022:31:560
337214399351,1cyclictest3555208-21diskstats23:46:510
337214599343,10cyclictest11050irq/107-eth%d19:57:002
337214399332,20cyclictest0-21swapper/000:26:520
337214399321,2cyclictest3504574-21ssh22:52:000
3372144993121,9cyclictest1006-21mta-sts-daemon19:51:581
337214499303,23cyclictest3436409-21ssh21:39:041
3372143993025,4cyclictest3495037-21latency22:41:560
337214599296,7cyclictest0-21swapper/223:19:392
337214599296,19cyclictest967-21snmpd00:36:592
337214499297,18cyclictest1007-21mta-sts-daemon22:35:411
337214499294,5cyclictest11050irq/107-eth%d22:31:561
3372143992914,13cyclictest3367726-21kworker/u8:1+events_unbound19:14:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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