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2025-11-04 - 09:56
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 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 rack2slot7.osadl.org (updated Tue Nov 04, 2025 00:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1002704995836,8cyclictest0-21swapper/022:45:450
100270499561,31cyclictest0-21swapper/021:42:570
100270499522,30cyclictest1224903-21ssh00:37:550
100270499495,21cyclictest0-21swapper/023:52:280
1002704994319,7cyclictest0-21swapper/000:30:340
100270499392,30cyclictest0-21swapper/000:02:570
100270499371,4cyclictest607-21dbus-daemon23:20:430
1002705993531,3cyclictest1012573-21munin-plugin-st19:45:421
1002704993513,6cyclictest0-21swapper/023:45:470
100270499342,18cyclictest0-21swapper/021:39:020
1002704993118,2cyclictest0-21swapper/023:42:500
100270499311,21cyclictest0-21swapper/023:05:420
100270699305,20cyclictest1175593-21ssh23:40:452
100270599306,18cyclictest1163362-21ssh23:27:571
1002704992920,1cyclictest0-21swapper/023:32:570
100270499291,19cyclictest1087180-21latency_hist22:05:420
100270599283,7cyclictest0-21swapper/122:42:411
100270499286,6cyclictest11050irq/107-eth%d21:17:590
1002704992818,2cyclictest1026301-21grep20:27:540
1002704992814,10cyclictest111788-21systemd-journal22:27:570
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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