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2026-04-01 - 06:32
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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 Apr 01, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502170,0irq/45-4a1000002397-21kworker/0:119:01:170
85729610,0sleep0887-21swap23:27:000
7450940,0irq/46-4a1000002319-21runrttasks20:21:480
32572947,0sleep03282-21munin-run23:36:050
7450930,0irq/46-4a1000003798-21fschecks_time20:26:310
7450930,0irq/46-4a10000030742-21/usr/sbin/munin21:46:550
7450930,0irq/46-4a10000019249-21idleruntime22:46:380
7450930,0irq/46-4a10000019110-21diskstats19:36:290
7450930,0irq/46-4a10000016573-21fw_forwarded_lo00:16:350
7350930,0irq/45-4a10000025824-21df23:06:210
7450920,0irq/46-4a10000022466-21sshd19:46:230
7450920,0irq/46-4a10000019398-21latency_hist00:26:040
7350920,0irq/45-4a10000013550-21sendmail20:56:060
7450910,0irq/46-4a1000006896-21aten_r4power_vo22:11:140
7450910,0irq/46-4a1000006695-21munin-run22:11:050
7450910,0irq/46-4a100000460-21snmpd23:05:050
7450910,0irq/46-4a10000032653-21df21:51:210
7450910,0irq/46-4a10000024615-21ntp_states21:26:540
7450910,0irq/46-4a1000002239-21kernelversion21:56:430
7450910,0irq/46-4a10000019238-21/usr/sbin/munin21:11:380
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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