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2025-04-02 - 04:35
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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 Wed Apr 02, 2025 00:44:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
327223952201,142sleep00-21swapper17:48:350
7809915877,40cyclictest11077-21/usr/sbin/munin22:53:210
7809915782,35cyclictest30911-21apt-get20:22:420
7809915678,53cyclictest32660-21ssh22:15:170
7809915677,55cyclictest18421-21latency_hist23:17:250
7809915582,51cyclictest21878-21/usr/sbin/munin21:39:010
7809915579,52cyclictest24843-21/usr/sbin/munin20:02:540
7809915577,52cyclictest14996-21/usr/sbin/munin21:18:550
7809915478,52cyclictest6071-21ssh20:47:140
7809915478,34cyclictest2433-21/usr/sbin/munin22:22:500
7809915478,34cyclictest19338-21/usr/sbin/munin21:33:480
7809915476,54cyclictest1247-21sh20:32:490
7809915382,49cyclictest26708-21ssh20:08:350
7809915380,50cyclictest30572-21ssh22:08:060
7809915377,52cyclictest8937-21apt-get20:57:420
7809915279,49cyclictest12443-21ssh21:08:160
7809915277,34cyclictest14396-21ssh21:14:500
7809915275,51cyclictest23240-21memory21:43:370
7809915273,36cyclictest8419-21grep18:28:270
7809915184,26cyclictest8523-21apt-get22:42:430
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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