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2026-09-23 - 05:55
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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 Sep 23, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
745012800,0irq/46-4a10000021520-1kworker/u3:119:07:040
7350950,0irq/45-4a10000023602-21chrt22:20:010
7350910,0irq/45-4a1000001700-21memory00:25:140
7350890,0irq/45-4a10000025425-21chrt00:00:050
7450880,0irq/46-4a10000023277-21/usr/sbin/munin23:55:300
7450880,0irq/46-4a10000022279-21open_inodes22:15:200
7450870,0irq/46-4a1000008350-21fw_conntrack23:10:060
7450870,0irq/46-4a10000025568-21memory20:50:140
7450870,0irq/46-4a10000020496-21ntp_kernel_pll_20:35:150
7450870,0irq/46-4a10000016748-21diskstats23:34:540
151752870,0chrt7771-1kworker/u3:020:20:050
7450860,0irq/46-4a1000008329-21fw_conntrack21:35:000
7450860,0irq/46-4a1000006010-21cron19:54:300
7450860,0irq/46-4a10000029802-21runrttasks21:03:160
7450860,0irq/46-4a10000019733-21runrttasks23:44:300
7350860,0irq/45-4a10000013215-21df21:49:470
283502860,0chrt27887-1kworker/u3:000:09:340
7450850,0irq/46-4a1000007766-21sendmail-msp19:59:480
7450850,0irq/46-4a10000032019-21expr22:44:470
7450850,0irq/46-4a10000028919-21chrt22:35:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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