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2026-07-10 - 01:27
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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 20 highest latencies:
System rack4slot2.osadl.org (updated Thu Jul 09, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502590,0irq/46-4a10000028509-1kworker/u3:107:06:470
7350930,0irq/45-4a10000029537-1kworker/u3:210:23:280
7350930,0irq/45-4a1000001282-21/usr/sbin/munin08:54:450
7450920,0irq/46-4a10000025056-21fw_forwarded_lo10:04:360
7450920,0irq/46-4a10000015252-21runrttasks08:00:100
7350910,0irq/45-4a1000002859-21fw_conntrack08:59:400
7350910,0irq/45-4a10000017373-1kworker/u3:108:07:060
326992910,0sleep030096-1kworker/u3:112:01:350
29032999168,0cyclictest0-21swapper07:54:580
7450900,0irq/46-4a1000003570-1kworker/u3:107:26:180
7450900,0irq/46-4a10000020110-21ls09:49:520
29032999058,0cyclictest0-21swapper09:54:560
29032999056,0cyclictest0-21swapper07:45:040
7350890,0irq/45-4a10000023250-21fschecks_count08:24:320
29032998956,0cyclictest0-21swapper07:14:530
29032998955,0cyclictest0-21swapper10:50:060
7450880,0irq/46-4a1000005698-21sendmail-msp12:19:490
7450880,0irq/46-4a10000031384-21wc08:49:080
7450880,0irq/46-4a1000002996-21runrttasks12:09:480
7450880,0irq/46-4a10000020776-21runrttasks11:26:520
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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