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2024-04-26 - 23:40
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 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 rack3slot6.osadl.org (updated Fri Apr 26, 2024 12:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1656421240,4chrt1-21systemd10:30:130
1526621210,4chrt14813-21apt-get07:25:140
117121160,4chrt1170-21load11:15:240
878728317,26sleep00-21swapper/007:09:110
4432790,4chrt445-21aten2.4_r3power09:45:160
204992780,4chrt20474-21apt-get10:40:200
252322770,4chrt25230-21sensors_fan12:20:340
321772740,4chrt32178-21cat08:10:310
140532680,4chrt14051-21kernelversion11:50:270
899599638,43cyclictest4248-21apt-get11:25:110
899599587,17cyclictest16487-21apt-get09:00:120
899599527,35cyclictest9070-21apt-get07:10:130
8995995034,11cyclictest20456-21diskstats09:10:230
8995995020,25cyclictest22624-21/usr/sbin/munin07:45:330
8995994931,14cyclictest29773-21sh11:05:200
899599484,11cyclictest25845-21apt-get10:55:110
326152482,41sleep04947-21snmpd11:12:280
899599477,31cyclictest17047-21apt-get07:30:130
899599477,18cyclictest29788-21apt-get12:35:110
899599477,17cyclictest6051-21apt-get11:30:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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