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2026-06-21 - 23:50
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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 Sun Jun 21, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502080,0irq/46-4a10000016866-21/usr/sbin/munin07:05:180
7450980,0irq/46-4a100000438-21snmpd09:53:100
7350980,0irq/45-4a10000010156-21/usr/sbin/munin11:29:590
7450970,0irq/46-4a10000027710-21fw_conntrack10:45:200
7450960,0irq/46-4a10000026523-21timerandwakeup10:40:520
20032969,0sleep02042-21tune2fs09:30:180
7450950,0irq/46-4a1000007599-21runrttasks09:45:430
7450950,0irq/46-4a10000032260-21sendmail-msp11:00:260
7450950,0irq/46-4a10000032099-1kworker/u3:007:52:060
7350950,0irq/45-4a10000013751-21/usr/sbin/munin08:30:030
7450940,0irq/46-4a1000003225-21sendmail-msp08:00:260
7450940,0irq/46-4a10000029407-21fw_forwarded_lo10:50:210
7450940,0irq/46-4a10000025382-21cron10:39:480
7450940,0irq/46-4a10000024717-21mailstats07:25:430
7450940,0irq/46-4a10000019318-21sshd08:45:270
7450940,0irq/46-4a10000019180-21/usr/sbin/munin07:10:480
7350940,0irq/45-4a1000005758-21open_files08:05:400
7350940,0irq/45-4a1000002877-1kworker/u3:009:36:420
90742930,0chrt7986-1kworker/u3:211:25:320
7450930,0irq/46-4a1000008747-21sshd08:15:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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