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2026-08-17 - 06:19
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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 Mon Aug 17, 2026 00:44:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502020,0irq/46-4a10000028137-21runrttasks19:08:440
282959913041,0cyclictest19031-21/usr/sbin/munin21:50:020
282959912336,0cyclictest14988-21sshd20:03:040
282959912241,0cyclictest6262-21runrttasks00:22:030
282959912138,0cyclictest11517-21runrttasks23:03:000
282959912038,0cyclictest10767-21/usr/sbin/munin00:35:240
282959912036,0cyclictest22023-21sendmail-msp21:59:510
282959912035,0cyclictest2349-21ntp_kernel_pll_19:25:270
282959912034,0cyclictest29452-21/usr/sbin/munin20:45:100
282959911932,0cyclictest32314-21sendmail-msp19:19:420
282959911838,0cyclictest20870-21/usr/sbin/munin21:55:060
282959911837,0cyclictest0-21swapper23:44:030
282959911836,0cyclictest25703-21expr23:44:500
282959911834,0cyclictest5422-21/usr/sbin/munin19:35:010
282959911831,0cyclictest17563-21cut23:20:250
282959911829,0cyclictest7637-21/usr/sbin/munin00:25:380
282959911828,0cyclictest17292-21chrt20:09:560
282959911742,0cyclictest0-21swapper23:08:440
282959911740,0cyclictest18498-21runrttasks21:49:000
282959911732,0cyclictest7925-21runrttasks19:41:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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