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2025-11-24 - 06:19
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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 50 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
8254999916,64cyclictest15121-21users20:32:390
8254999913,64cyclictest10113-21ssh21:54:590
8254999912,45cyclictest31612-21ssh21:22:140
8254999912,25cyclictest12492-21ssh20:26:020
8254999831,51cyclictest0-21swapper22:37:560
8254999824,65cyclictest0-21swapper21:03:350
8254999816,59cyclictest32502-21df23:01:320
8254999814,64cyclictest17778-21ssh20:41:310
8254999814,24cyclictest31694-21df19:46:340
8254999812,67cyclictest26361-21df_abs19:21:240
8254999714,64cyclictest16319-21irqstats20:37:030
8254999713,62cyclictest12098-21/usr/sbin/munin22:01:580
8254999710,24cyclictest5808-21wget20:06:220
8254999613,45cyclictest2636-21ssh19:56:330
8254999612,63cyclictest2310-21df_inode21:31:410
8254999610,26cyclictest18864-21ssh22:21:130
825499959,66cyclictest2916-21ssh23:10:510
8254999518,55cyclictest10937-21memory21:57:100
8254999516,59cyclictest29398-21ssh21:16:110
8254999516,58cyclictest26931-21users21:07:390
8254999515,51cyclictest0-21swapper20:24:570
8254999514,22cyclictest29226-21df22:51:330
8254999513,59cyclictest17955-21sort18:35:540
8254999512,62cyclictest29763-21apt-get19:41:200
8254999512,20cyclictest5692-21df_inode21:41:460
825499947,68cyclictest8813-21tr17:41:470
8254999414,62cyclictest14676-21df_inode18:16:270
8254999410,62cyclictest5527-21ssh20:05:270
825499918,45cyclictest12673-21grep18:06:140
8254999133,42cyclictest0-21swapper18:36:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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