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2026-06-12 - 01:12
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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 rack8slot2.osadl.org (updated Thu Jun 11, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
234498399197129,52cyclictest171ktimers/010:10:210
234498399197129,52cyclictest171ktimers/010:10:210
234498399191173,11cyclictest171ktimers/012:05:360
234498399175148,17cyclictest171ktimers/010:35:180
234498399153143,6cyclictest81-21hwrng09:14:300
23449869914274,61cyclictest461ktimers/311:45:463
234498699141124,13cyclictest81-21hwrng07:25:583
234498699141124,13cyclictest81-21hwrng07:25:583
2344985991403,107cyclictest2436808-21/usr/sbin/munin10:16:152
2344985991403,107cyclictest2436808-21/usr/sbin/munin10:16:152
23449859913662,62cyclictest2344982-21cyclictest12:05:362
2344986991332,61cyclictest2470157-21ntpq11:01:023
234498699131116,11cyclictest81-21hwrng07:30:043
234498599130119,7cyclictest81-21hwrng11:18:252
234498599130118,8cyclictest81-21hwrng11:08:102
234498599130118,8cyclictest81-21hwrng11:08:102
234498599130117,9cyclictest0-21swapper/212:05:022
234498599130117,9cyclictest0-21swapper/212:05:022
234498699129118,6cyclictest81-21hwrng12:11:403
234498699129118,6cyclictest81-21hwrng12:11:403
23449859912836,73cyclictest0-21swapper/209:20:512
234498599128120,5cyclictest81-21hwrng11:26:362
234498699127111,8cyclictest0-21swapper/311:40:383
234498699127111,8cyclictest0-21swapper/311:40:383
234498599126118,5cyclictest81-21hwrng09:13:292
234498599126115,7cyclictest81-21hwrng11:22:302
234498599126115,7cyclictest81-21hwrng11:22:302
23449869912513,100cyclictest2486907-21apt-get11:25:163
234498699125107,13cyclictest81-21hwrng09:01:123
234498599125114,7cyclictest81-21hwrng09:53:252
234498599125114,7cyclictest81-21hwrng09:53:252
2344986991242,53cyclictest2530416-21idleruntime12:25:393
23449859912457,44cyclictest2445224-21/usr/sbin/munin10:26:082
23449859912457,44cyclictest2445224-21/usr/sbin/munin10:26:082
234498599124115,5cyclictest81-21hwrng11:13:172
234498599124114,6cyclictest81-21hwrng10:59:592
234498599124114,6cyclictest81-21hwrng10:59:592
234498699123112,7cyclictest81-21hwrng11:38:533
234498699123112,7cyclictest81-21hwrng11:38:533
2344985991224,107cyclictest2518792-21apt-get12:10:032
2344985991224,107cyclictest2518792-21apt-get12:10:032
2344983991221,64cyclictest2521398-21kworker/u16:19+rpciod12:20:310
234498599121113,5cyclictest81-21hwrng11:53:142
234498599121112,5cyclictest81-21hwrng10:06:442
234498599121107,7cyclictest81-21hwrng07:36:122
234498599121104,11cyclictest81-21hwrng08:22:172
234498599120109,7cyclictest81-21hwrng08:37:392
2344983991203,46cyclictest2361900-21store07:55:020
234498699119107,6cyclictest81-21hwrng10:46:403
234498399119102,5cyclictest81-21hwrng11:45:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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