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2026-07-18 - 20:40
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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 18, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
745010530,0irq/46-4a1000005191-1kworker/u3:207:04:440
7450980,0irq/46-4a10000031804-21sendmail_mailqu11:29:380
7450960,0irq/46-4a10000026070-21sshd11:14:010
7450960,0irq/46-4a10000017342-21/usr/sbin/munin09:13:530
7350960,0irq/45-4a1000004722-21users10:09:450
7450950,0irq/46-4a1000003360-21seq08:32:230
7450950,0irq/46-4a10000012087-21awk10:33:440
7450950,0irq/46-4a10000010619-21aten_r4power_vo08:53:580
7450940,0irq/46-4a1000008131-21users11:54:440
7450940,0irq/46-4a1000006977-21sendmail-msp10:20:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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