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2026-06-13 - 11:52
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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 Sat Jun 13, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501940,0irq/46-4a10000032383-21runrttasks19:07:500
28836210014,0sleep028868-21meminfo23:40:270
1705529817,0sleep017106-21sendmail_mailqu21:30:380
7450970,0irq/46-4a10000011486-21runrttasks19:40:100
2699429711,0sleep026996-21fw_forwarded_lo23:35:170
7450930,0irq/46-4a100000452-21snmpd23:20:560
7450920,0irq/46-4a1000007691-21sed22:39:500
7450920,0irq/46-4a100000452-21snmpd00:00:580
7450920,0irq/46-4a10000028080-21runrttasks20:29:320
7450920,0irq/46-4a10000015113-21/usr/sbin/munin00:35:210
7450910,0irq/46-4a100000993-21aten_r4power_po20:44:570
7450910,0irq/46-4a1000008595-21mailstats19:30:390
7450910,0irq/46-4a10000019640-21grep21:39:510
7450900,0irq/46-4a100000809-21ls20:44:470
7450900,0irq/46-4a1000006050-21/usr/sbin/munin21:00:130
7450900,0irq/46-4a1000004971-21missed_timers20:55:300
7450900,0irq/46-4a1000004015-21runrttasks22:28:130
7450900,0irq/46-4a10000024681-21cron21:54:460
7450900,0irq/46-4a10000018937-21threads23:10:400
7450900,0irq/46-4a10000015107-21chrt19:50:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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