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2026-05-15 - 19:24
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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 20 highest latencies:
System rack4slot2.osadl.org (updated Fri May 15, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502630,0irq/46-4a10000010007-1kworker/u3:007:02:390
107662947,0sleep010672-21/usr/sbin/munin08:34:330
7450930,0irq/46-4a1000006611-21/usr/sbin/munin09:55:190
7450930,0irq/46-4a1000003675-21cron08:14:190
7450930,0irq/46-4a10000031386-21df_abs11:09:380
7450930,0irq/46-4a1000002845-21open_inodes09:45:100
7450930,0irq/46-4a10000027767-21/usr/sbin/munin11:00:080
7450930,0irq/46-4a10000026551-21/usr/sbin/munin10:54:530
7450930,0irq/46-4a10000021260-21/usr/sbin/munin09:04:450
7350930,0irq/45-4a10000027176-1kworker/u3:007:49:490
7350930,0irq/45-4a10000023991-1kworker/u3:011:24:110
11668999359,0cyclictest0-21swapper08:59:350
11668999358,0cyclictest0-21swapper08:55:180
7450920,0irq/46-4a1000009766-21grep10:05:130
7450920,0irq/46-4a1000009342-21fschecks_time08:29:460
7450920,0irq/46-4a1000008826-21idleruntime-cro10:04:190
7450920,0irq/46-4a1000004447-21chrt08:15:030
7450920,0irq/46-4a1000003789-21sort09:49:240
7450920,0irq/46-4a10000030505-21grep09:30:190
7450920,0irq/46-4a10000025897-21cron10:54:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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