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2026-01-01 - 02:21
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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 Jan 01, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15371212710,0sleep013868-1kworker/u3:119:06:560
7450950,0irq/46-4a1000007526-21users21:52:000
314642940,0sleep024891-1kworker/u3:123:01:410
195152940,0sleep017064-1kworker/u3:000:01:260
150152930,0sleep09702-1kworker/u3:020:39:570
7450920,0irq/46-4a1000004630-1kworker/u3:121:48:100
7450920,0irq/46-4a10000024791-21ls00:20:270
7350920,0irq/45-4a10000023888-21fw_conntrack22:40:180
188242927,0sleep018825-21/usr/sbin/munin20:50:200
7450910,0irq/46-4a1000005462-21ntpq23:21:490
7450910,0irq/46-4a10000029458-21mailstats19:46:430
7450910,0irq/46-4a10000026169-21df_abs00:24:590
7450910,0irq/46-4a10000018615-1kworker/u3:122:31:510
7450910,0irq/46-4a10000010381-21open_files20:25:300
7350910,0irq/45-4a1000008282-21df_abs21:54:590
142292910,0sleep012811-1kworker/u3:022:10:500
7450900,0irq/46-4a1000007829-21sendmail-msp20:20:040
7450900,0irq/46-4a10000030888-21latency_hist00:39:320
7450900,0irq/46-4a10000030824-21ntp_offset19:50:270
7450900,0irq/46-4a1000002789-21date20:04:440
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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