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2025-09-18 - 04:18
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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 Thu Sep 18, 2025 00:44:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1373224062167,186sleep00-21swapper17:40:170
18389917621,126cyclictest9179-21df_inode20:40:040
18389917016,127cyclictest25720-21apt-get21:29:320
18389916820,121cyclictest22338-21/usr/sbin/munin21:21:010
18389916820,106cyclictest15590-21apt-get20:59:290
18389916719,108cyclictest17536-21df21:04:540
18389916620,121cyclictest25039-21apt-get19:49:310
18389916616,125cyclictest24248-21apt-get23:04:290
18389916612,129cyclictest21160-21/usr/sbin/munin22:55:410
18389916610,130cyclictest31761-21/usr/sbin/munin20:10:510
18389916521,120cyclictest27860-21irqstats21:35:160
18389916519,117cyclictest22291-21apt-get19:34:240
18389916518,104cyclictest16014-21users22:35:510
18389916517,108cyclictest13914-21apt-get20:54:310
18389916512,126cyclictest6740-21/usr/sbin/munin22:10:260
18389916419,102cyclictest2243-21memory21:55:270
18389916321,116cyclictest3829-21irqstats22:00:190
18389916318,123cyclictest24298-21df21:24:530
18389916317,121cyclictest29458-21df_inode21:40:040
18389916316,122cyclictest27090-21df_inode19:55:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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