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2026-06-28 - 01:09
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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 Sat Jun 27, 2026 12:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17712224562218,91sleep00-21swapper07:00:230
181699917218,109cyclictest24711-21apt-get11:29:320
181699916720,120cyclictest12661-21apt-get10:54:340
181699916718,125cyclictest14100-21apt-get09:24:340
181699916617,122cyclictest7197-21apt-get09:04:370
181699916534,113cyclictest32236-21grep10:15:560
181699916418,106cyclictest24790-21df_inode09:55:050
181699916417,123cyclictest9877-21fw_conntrack12:20:170
181699916416,123cyclictest19570-21apt-get11:14:330
181699916416,105cyclictest871-21df10:20:000
181699916415,125cyclictest20997-21apt-get09:44:350
181699916414,125cyclictest19859-21/usr/sbin/munin09:40:410
181699916319,103cyclictest7506-21apt-get10:39:300
181699916318,120cyclictest4313-21df10:29:540
181699916317,122cyclictest3151-21memory12:00:350
181699916314,124cyclictest22993-21/usr/sbin/munin11:25:200
181699916311,129cyclictest15020-21awk11:00:470
181699916219,117cyclictest7768-21apt-get12:14:310
181699916218,121cyclictest26802-21df_inode11:35:070
181699916217,118cyclictest9478-21df10:44:560
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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