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2026-09-18 - 17:28
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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 Sep 18, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501920,0irq/46-4a10000014130-21runrttasks07:09:300
14209999574,0cyclictest0-21swapper08:20:080
7450940,0irq/46-4a10000022818-1kworker/u3:209:08:470
7450930,0irq/46-4a10000016488-1kworker/u3:008:50:580
7450920,0irq/46-4a100000442-21snmpd12:20:040
7450920,0irq/46-4a1000003908-21/usr/sbin/munin09:45:370
7450920,0irq/46-4a10000028686-21/usr/sbin/munin12:34:530
7450920,0irq/46-4a10000026933-21wget07:44:520
7450920,0irq/46-4a10000025950-21pluginstate12:25:310
7450920,0irq/46-4a10000025210-21wget10:49:510
7450920,0irq/46-4a10000023894-21fw_conntrack07:35:100
14209999262,0cyclictest0-21swapper09:55:350
7450910,0irq/46-4a1000004804-21cpu09:49:580
7450910,0irq/46-4a10000032710-21ntp_states08:00:320
7450910,0irq/46-4a10000031286-21ls07:55:370
7450910,0irq/46-4a10000028929-21diskstats11:00:080
7450910,0irq/46-4a1000002618-1kworker/u3:011:21:240
7450910,0irq/46-4a10000018673-21df_inode12:05:030
7450910,0irq/46-4a1000001579-21df_inode09:40:040
7450910,0irq/46-4a10000011807-21diskstats08:35:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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