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2026-09-14 - 02:22
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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 10 highest latencies:
System rack4slot2.osadl.org (updated Mon Sep 14, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501960,0irq/46-4a10000025379-21runrttasks19:06:570
7350950,0irq/45-4a10000031928-21diskstats19:25:150
74812940,0sleep07453-1kworker/u3:200:33:360
7450930,0irq/46-4a10000028847-21/usr/sbin/munin22:25:310
7450920,0irq/46-4a1000008145-21fschecks_time23:00:210
7450920,0irq/46-4a100000442-21snmpd23:35:330
7450920,0irq/46-4a10000029561-21chrt20:53:080
7450920,0irq/46-4a10000021254-21cron22:04:510
7450920,0irq/46-4a1000001613-21proc_pri19:30:420
7350920,0irq/45-4a10000013116-21df_abs23:15:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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