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2026-08-26 - 21:52
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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 Aug 26, 2026 12:44:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501960,0irq/46-4a10000013379-21runrttasks07:08:580
74501010,0irq/46-4a10000032214-21forks11:14:390
7350970,0irq/45-4a10000019042-21/usr/sbin/munin09:00:200
7450960,0irq/46-4a1000004949-21fschecks_count09:54:420
13463999654,0cyclictest0-21swapper07:29:550
7450950,0irq/46-4a10000027820-21/usr/sbin/munin12:35:180
7450950,0irq/46-4a10000022010-21seq12:19:490
172542950,0sleep016538-1kworker/u3:112:05:060
7450940,0irq/46-4a100000786-1kworker/u3:011:20:210
7450940,0irq/46-4a1000006573-21diskstats11:34:380
7450940,0irq/46-4a1000005005-21seq11:29:440
7450940,0irq/46-4a10000031024-21open_inodes08:00:210
7450940,0irq/46-4a10000028975-21/usr/sbin/munin11:04:510
7450940,0irq/46-4a10000022040-21entropy07:34:380
7450940,0irq/46-4a10000011925-21fw_conntrack08:39:560
7450940,0irq/46-4a1000001085-21munin-run08:09:150
7350940,0irq/45-4a10000017097-21seq07:20:000
7450930,0irq/46-4a1000006481-1kworker/u3:010:21:220
7450930,0irq/46-4a10000032433-21/usr/sbin/munin09:40:000
7450930,0irq/46-4a10000026897-21grep07:49:260
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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