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2026-08-02 - 06:16
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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 Sun Aug 02, 2026 00:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3683224512214,90sleep00-21swapper19:00:340
39259917018,53cyclictest28316-21df_inode00:18:200
39259916914,46cyclictest15383-21latency_hist22:07:330
39259916913,43cyclictest2506-21/usr/sbin/munin21:29:130
39259916842,106cyclictest26111-21sendmail00:12:280
39259916718,23cyclictest21068-21apt-get23:57:540
39259916715,42cyclictest17536-21/usr/sbin/munin22:13:160
39259916417,40cyclictest22551-21munin-run20:47:300
39259916415,127cyclictest30879-21df21:18:130
39259916412,44cyclictest29278-21/usr/sbin/munin22:49:120
39259916314,24cyclictest19188-21df22:18:110
39259916314,23cyclictest5889-21fw_conntrack23:13:290
39259916313,58cyclictest14588-21irqstats23:38:390
39259916242,23cyclictest18816-21timerandwakeup20:23:330
39259916218,27cyclictest12683-21df23:33:110
39259916217,41cyclictest32752-21apt-get22:57:500
39259916217,23cyclictest3352-21apt-get21:32:440
39259916213,41cyclictest28599-21ssh21:11:510
39259916140,23cyclictest4481-21ntp_kernel_pll_19:03:200
39259916119,38cyclictest9297-21df_inode23:23:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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