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2026-07-29 - 17:03
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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 Wed Jul 29, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501990,0irq/46-4a1000003566-21/usr/sbin/munin07:03:400
1122829814,0sleep011230-21irqstats07:23:560
7450920,0irq/46-4a10000019103-21sendmail-msp10:59:100
7450920,0irq/46-4a10000017819-21seq09:18:400
4867999260,0cyclictest0-21swapper08:09:200
7450910,0irq/46-4a10000018145-21/usr/sbin/munin07:44:030
7450910,0irq/46-4a10000016019-21sed12:23:380
4867999158,0cyclictest0-21swapper08:29:160
172932919,0sleep0438-21snmpd09:17:410
7450900,0irq/46-4a10000029757-21runrttasks11:28:410
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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