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2026-06-11 - 15:24
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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 Thu Jun 11, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502390,0irq/45-4a10000028669-21kworker/0:107:06:070
7450970,0irq/46-4a10000026953-21kernelversion10:00:290
7450970,0irq/46-4a10000019468-21sendmail-msp09:39:510
7450970,0irq/46-4a10000016532-21fschecks_time07:55:160
7450940,0irq/46-4a10000017857-21/usr/sbin/munin11:10:360
7450940,0irq/46-4a10000014342-21sendmail-msp10:59:510
32526999458,0cyclictest0-21swapper12:25:270
7450930,0irq/46-4a1000007809-21cstates12:15:040
7450930,0irq/46-4a1000005992-21aten_r4power_po10:35:020
7450930,0irq/46-4a1000005034-21sendmail_mailst07:20:420
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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