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2025-07-13 - 07:39
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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 Sun Jul 13, 2025 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502330,0irq/46-4a10000025634-1kworker/u3:219:06:230
7350940,0irq/45-4a10000024116-21/usr/sbin/munin23:41:030
7450930,0irq/46-4a1000002314-21seq00:12:500
7450920,0irq/46-4a1000003179-21grep22:40:350
7450920,0irq/46-4a1000002463-21latency_hist22:39:470
7450920,0irq/46-4a10000013638-21/usr/sbin/munin20:02:070
7450910,0irq/46-4a1000004765-21/usr/sbin/munin21:10:220
7450910,0irq/46-4a10000031093-21chrt20:52:110
7450910,0irq/46-4a10000025368-21if_err_eth023:45:240
7450910,0irq/46-4a10000024038-21/usr/sbin/munin22:06:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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