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2026-07-15 - 17:41
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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 Wed Jul 15, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501890,0irq/46-4a10000020145-21seq07:05:340
7450970,0irq/46-4a1000009777-21runrttasks09:44:240
20587999757,0cyclictest0-21swapper07:30:180
7450940,0irq/46-4a10000014358-21ls08:23:530
7350940,0irq/45-4a10000016139-21/usr/sbin/munin11:39:330
7450930,0irq/46-4a1000009317-21/usr/sbin/munin08:09:460
7350930,0irq/45-4a1000007501-21munin-run08:03:520
7350930,0irq/45-4a10000032233-21ntpq07:39:470
314362930,0sleep031024-1kworker/u3:207:38:530
20587999358,0cyclictest0-21swapper07:54:540
7450920,0irq/46-4a100000438-21snmpd09:29:240
7450920,0irq/46-4a10000023298-21diskstats08:49:170
20587999258,0cyclictest0-21swapper10:24:260
7450910,0irq/46-4a1000008117-1kworker/u3:212:21:430
7450910,0irq/46-4a1000003028-21runrttasks09:24:300
7450910,0irq/46-4a10000028537-21fw_forwarded_lo12:14:240
7450910,0irq/46-4a10000021567-21df_abs08:44:110
7450910,0irq/46-4a1000001219-21runrttasks10:54:250
7450910,0irq/46-4a10000011311-21df_abs09:49:110
20587999169,0cyclictest0-21swapper09:34:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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