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2025-11-24 - 17:01
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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 12:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16087224442211,83sleep00-21swapper05:39:250
162769916720,120cyclictest28754-21users08:52:320
162769916718,123cyclictest16832-21apt-get08:16:110
162769916516,123cyclictest1670-21apt-get09:11:090
162769916513,126cyclictest8021-21apt-get09:31:120
162769916512,126cyclictest23118-21/usr/sbin/munin08:36:580
162769916421,117cyclictest4218-21/usr/sbin/munin11:02:340
162769916419,120cyclictest19360-21df10:06:290
162769916414,106cyclictest11503-21df09:41:340
162769916410,130cyclictest25942-21ntpq10:27:150
162769916318,120cyclictest6415-21apt-get09:26:100
162769916316,122cyclictest22115-21apt-get10:16:110
162769916220,116cyclictest30329-21users08:57:360
162769916215,121cyclictest14219-21/usr/sbin/munin09:52:310
162769916214,107cyclictest9640-21irqstats07:52:140
162769916213,123cyclictest21548-21/usr/sbin/munin08:32:080
162769916210,126cyclictest19812-21df_abs05:56:220
162769916115,109cyclictest30556-21df_inode10:41:430
162769916114,123cyclictest30430-21apt-get06:56:090
162769916114,122cyclictest12614-21apt-get09:46:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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