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2026-04-03 - 14:25
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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 Apr 03, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501960,0irq/46-4a10000018321-21/usr/sbin/munin07:01:340
224772947,0sleep022490-21/usr/sbin/munin08:51:070
19341999370,0cyclictest0-21swapper11:01:310
7450920,0irq/46-4a10000031568-21kernelversion07:41:350
7450920,0irq/46-4a10000027665-21cut09:06:100
7450920,0irq/46-4a10000017580-21df_abs08:36:170
7450920,0irq/46-4a10000016141-21if_eth010:06:340
7350920,0irq/45-4a1000005253-1kworker/u3:109:36:010
7450910,0irq/46-4a1000009804-21ls09:46:560
7450910,0irq/46-4a1000005722-21diskstats09:36:220
7450910,0irq/46-4a1000003909-21df11:06:160
7450910,0irq/46-4a10000031893-21sendmail_mailtr10:51:530
7450910,0irq/46-4a10000026602-21ntp_offset09:01:460
7450910,0irq/46-4a10000025100-21/usr/sbin/munin08:56:530
7450910,0irq/46-4a10000021079-21diskstats08:46:210
7450910,0irq/46-4a10000015850-21runrttasks08:31:140
7450910,0irq/46-4a1000001330-21grep09:21:550
7350910,0irq/45-4a1000007702-21latency11:16:360
7350910,0irq/45-4a10000019539-21/usr/sbin/munin08:41:320
19341999156,0cyclictest0-21swapper10:26:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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