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2026-04-15 - 01:41
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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 Tue Apr 14, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74508530,0irq/46-4a10000012-21ksoftirqd/007:04:090
7450950,0irq/46-4a10000028022-21chrt09:25:580
12609999573,0cyclictest0-21swapper12:01:240
7450940,0irq/46-4a10000014749-21fw_conntrack07:10:530
7450940,0irq/46-4a10000011454-21mailstats11:46:260
154432940,0sleep013713-1kworker/u3:110:24:090
7450930,0irq/46-4a10000025193-21seq10:51:280
7450930,0irq/46-4a10000023122-21irqstats07:36:110
7450930,0irq/46-4a10000021597-21open_inodes09:06:230
7450930,0irq/46-4a10000019384-21df09:00:500
7450930,0irq/46-4a10000019271-21aten_r4power_vo10:35:470
7450930,0irq/46-4a1000001856-21chrt08:09:590
7450930,0irq/46-4a10000017877-21tune2fs07:21:010
7450930,0irq/46-4a10000014577-21irqstats11:56:080
7450930,0irq/46-4a10000012629-21df_abs10:15:510
7350930,0irq/45-4a1000005005-1kworker/u3:111:28:590
7450920,0irq/46-4a1000005909-21fschecks_time09:56:030
7450920,0irq/46-4a10000031891-21/usr/sbin/munin09:36:250
7450920,0irq/46-4a10000026240-21df_abs10:55:510
7450920,0irq/46-4a10000023276-21ntp_states10:46:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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