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2022-10-04 - 03:04

x86 Intel Core i5-8365UE @1600 MHz, Linux 5.19.0-rc7-rt7 (Profile)

Latency plot of system in rack #e, slot #2
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp90 -i200 -h400 -q done
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 20 highest latencies:
System rackeslot2.osadl.org (updated Mon Oct 03, 2022 12:43:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
96402090170,1cyclictest1451255-21munin-run12:40:010
96402090160,2cyclictest1291559-21ssh11:02:280
96402090160,1cyclictest1401283-21munin-run12:09:550
96402090160,15cyclictest1243303-21cstates10:34:550
96402090160,15cyclictest1172402-21memory09:49:520
96402690150,14cyclictest0-21swapper/210:03:022
96402690150,14cyclictest0-21swapper/207:45:132
96402590150,14cyclictest0-21swapper/112:34:441
964020901513,2cyclictest0-21swapper/011:56:030
964020901513,2cyclictest0-21swapper/011:56:030
964020901513,1cyclictest1367986-21munin-run11:49:520
964020901513,1cyclictest1161039-21irqstats09:44:520
964020901513,1cyclictest1062475-21munin-run08:34:180
964020901512,2cyclictest0-21swapper/010:34:350
96402090150,1cyclictest1304762-21kthreadcore11:10:040
96402090150,1cyclictest1199587-21diskmemload10:07:390
96402090150,1cyclictest1182186-21ssh09:56:150
96402090150,15cyclictest1401632-21/usr/sbin/munin12:10:210
96402090150,15cyclictest1338164-21cut11:30:070
96402090150,15cyclictest1202556-21tr10:09:530
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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