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2026-05-17 - 20:05
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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 Sun May 17, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73504120,0irq/45-4a100000142332sleep007:01:260
7450970,0irq/46-4a1000006245-1kworker/u3:209:49:000
7450940,0irq/46-4a10000029549-21/usr/sbin/munin12:29:520
7450940,0irq/46-4a10000023118-21awk12:10:130
14622999472,0cyclictest0-21swapper09:50:050
7450930,0irq/46-4a10000023116-21threads09:00:130
7350930,0irq/45-4a10000029954-21/usr/sbin/munin09:20:110
7350930,0irq/45-4a10000022196-21aten_r4power_cu10:34:260
14622999360,0cyclictest0-21swapper07:39:290
14622999359,0cyclictest0-21swapper10:09:270
7450920,0irq/46-4a1000008773-21df_abs11:29:330
7450920,0irq/46-4a1000005457-21grep11:19:410
7450920,0irq/46-4a1000004092-21/usr/sbin/munin08:05:090
7450920,0irq/46-4a10000029283-21df_abs10:54:340
7450910,0irq/46-4a1000008959-21chrt08:19:470
7450910,0irq/46-4a10000031018-21diskstats09:24:380
7450910,0irq/46-4a10000028602-21chrt12:27:040
7450910,0irq/46-4a10000025905-21diskstats07:34:410
7450910,0irq/46-4a10000021056-21load12:04:550
7450910,0irq/46-4a10000020832-21fschecks_count10:29:420
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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