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2025-11-24 - 10:02
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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 Mon Nov 24, 2025 00:44:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8190224032165,185sleep00-21swapper17:40:340
82549911531,51cyclictest0-21swapper21:39:170
82549910414,26cyclictest10699-21grep20:20:550
82549910346,37cyclictest28117-21timerandwakeup22:47:350
82549910218,62cyclictest7540-21memory21:47:100
82549910118,21cyclictest15745-21df22:11:320
82549910117,63cyclictest22615-21fw_conntrack22:31:560
82549910114,62cyclictest20892-21latency_hist20:50:580
82549910111,68cyclictest20523-21/usr/sbin/munin22:27:280
82549910027,63cyclictest0-21swapper20:59:320
82549910015,64cyclictest7435-21/usr/sbin/munin20:11:560
82549910012,49cyclictest934-21expr19:51:320
8254999933,47cyclictest0-21swapper18:50:530
8254999932,49cyclictest0-21swapper22:09:270
8254999928,52cyclictest0-21swapper22:20:540
8254999918,44cyclictest21323-21fw_conntrack20:51:550
8254999917,62cyclictest29263-21munin-run21:15:530
8254999917,44cyclictest1210-21users21:27:410
8254999917,43cyclictest30941-21df_inode22:56:430
8254999917,22cyclictest25855-21df22:41:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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