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2025-12-10 - 12:05
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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 Wed Dec 10, 2025 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4091795994318,10cyclictest121745-21ssh00:23:140
4091795993919,6cyclictest2243333-21munin-node23:18:060
409179599388,12cyclictest29322-21ntpq22:48:150
409179599385,3cyclictest4137005-21apt-get21:21:150
4091795993832,3cyclictest66573-21latency_hist23:26:140
4091795993818,3cyclictest0-21swapper/022:43:130
409179599375,6cyclictest49321-21ssh23:08:190
409179599363,7cyclictest88946-21ld23:48:130
409179599363,7cyclictest88946-21ld23:48:130
4091795993618,13cyclictest83834-21ntpq23:43:120
4091795993612,4cyclictest0-21swapper/021:16:330
409179599354,6cyclictest99031-21ntpq23:58:160
409179999343,3cyclictest171rcu_preempt21:41:172
409179599345,6cyclictest8111-21ssh22:27:110
409179599339,13cyclictest78148-21aten_r2power_vo23:38:080
409179599339,13cyclictest78148-21aten_r2power_vo23:38:080
409179999327,8cyclictest11050irq/107-eth%d21:49:212
409179599323,5cyclictest0-21swapper/021:56:200
4091795993217,10cyclictest0-21swapper/000:06:270
409179599321,12cyclictest4098929-21cut19:38:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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