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2026-08-06 - 20:41
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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 Aug 06, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502520,0irq/46-4a10000032213-1kworker/u3:119:05:130
7350970,0irq/45-4a1000004930-21/usr/sbin/munin23:59:010
7450960,0irq/46-4a10000016967-21/usr/sbin/munin00:33:560
7450950,0irq/46-4a1000009185-21sendmail-msp22:38:480
7450950,0irq/46-4a1000007490-21sendmail-msp20:58:110
7450950,0irq/46-4a1000004985-21seq19:14:100
7450950,0irq/46-4a10000014716-21entropy00:28:250
7450940,0irq/46-4a1000008290-1kworker/u3:000:13:540
7450940,0irq/46-4a10000026906-21if_err_eth020:18:400
7450940,0irq/46-4a10000021490-21chrt21:38:220
7450940,0irq/46-4a10000014327-21sendmail-msp21:19:180
7450940,0irq/46-4a10000012859-21grep22:48:140
7450930,0irq/46-4a1000007559-21/usr/sbin/munin00:08:230
7450930,0irq/46-4a10000031939-21fw_conntrack22:08:290
7450930,0irq/46-4a10000031570-21wget23:43:100
7450930,0irq/46-4a10000028930-21mailstats23:33:540
7450930,0irq/46-4a1000002358-21sendmail-msp22:19:130
7450930,0irq/46-4a10000023370-21tune2fs23:18:320
7450930,0irq/46-4a10000021840-21memory23:13:420
7450930,0irq/46-4a10000021598-21diskstats20:03:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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