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2026-07-11 - 15:03
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 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 10 highest latencies:
System rack4slot2.osadl.org (updated Sat Jul 11, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502670,0irq/46-4a1000002301-1kworker/u3:107:07:360
7450960,0irq/46-4a10000030532-21sendmail-msp11:39:480
7450950,0irq/46-4a10000025845-21fschecks_count09:49:260
7450950,0irq/46-4a10000012152-21chrt09:09:220
7450940,0irq/46-4a1000007038-21diskstats08:54:240
7450940,0irq/46-4a10000022310-21df_abs11:14:190
7450940,0irq/46-4a10000011339-21runrttasks09:05:510
2627999460,0cyclictest0-21swapper08:29:330
7450930,0irq/46-4a10000030679-21/usr/sbin/munin10:04:120
7450930,0irq/46-4a1000002885-21seq11:51:430
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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