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2025-11-18 - 09:05
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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 rack5slot7.osadl.org (updated Tue Nov 18, 2025 00:44:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3229224270,13sleep031309-1kworker/u3:017:37:220
36829910419,63cyclictest362-21users21:37:570
36829910316,66cyclictest3676-21ssh20:11:450
36829910214,24cyclictest8686-21ssh22:02:570
36829910213,27cyclictest16756-21ssh22:27:400
36829910212,41cyclictest1088-21/usr/sbin/munin21:41:420
36829910118,44cyclictest25557-21df21:16:580
36829910113,25cyclictest21448-21ssh22:42:130
36829910111,27cyclictest22290-21ssh21:07:100
36829910110,26cyclictest16665-21ssh20:50:360
36829910022,63cyclictest0-21swapper22:00:560
36829910016,22cyclictest29105-21memory21:27:290
36829910015,44cyclictest30072-21users23:07:570
3682999918,42cyclictest2297-21irqstats20:07:250
3682999917,61cyclictest27444-21memory21:22:250
3682999917,43cyclictest10566-21df_inode20:31:580
3682999916,62cyclictest9698-21df22:06:520
3682999915,23cyclictest31900-21users19:58:030
3682999912,47cyclictest14461-21apt-get22:21:390
3682999912,23cyclictest27587-21/usr/sbin/munin19:46:440
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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