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2021-01-16 - 06:34

Intel(R) Core(TM) i5-6440EQ CPU @ 2.70GHz, Linux 4.9.47-rt37 (Profile)

Latency plot of system in rack #5, 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 -Sp99 -i200 -h400 -q
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 50 highest latencies:
System rack5slot2.osadl.org (updated Sat Jan 16, 2021 00:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
263442197180,12sleep30-21swapper/319:08:193
261212197181,11sleep10-21swapper/119:05:281
263382190172,13sleep20-21swapper/219:08:152
263312189172,12sleep00-21swapper/019:08:080
29882470,0sleep20-21swapper/221:35:112
147072100,0sleep00-21swapper/023:05:120
266639961,4cyclictest0-21swapper/300:25:053
266459962,4cyclictest14825-21munin-run20:55:000
266459960,5cyclictest0-21swapper/020:05:020
266639955,0cyclictest0-21swapper/300:10:043
266639950,5cyclictest17384-21apt-get19:55:013
266639950,5cyclictest0-21swapper/320:05:123
266639950,4cyclictest28989-21munin-run19:15:003
266559955,0cyclictest29183-21kworker/2:223:39:122
266559955,0cyclictest29183-21kworker/2:222:43:122
266559955,0cyclictest29183-21kworker/2:222:09:372
266559955,0cyclictest29183-21kworker/2:221:47:162
266559955,0cyclictest29183-21kworker/2:220:17:412
266559955,0cyclictest29183-21kworker/2:219:21:412
266559955,0cyclictest29183-21kworker/2:200:24:002
266559955,0cyclictest24686-21kworker/2:119:10:302
266559950,5cyclictest0-21swapper/221:30:172
266559950,5cyclictest0-21swapper/220:45:082
266559950,5cyclictest0-21swapper/219:27:092
266559950,4cyclictest0-21swapper/221:15:042
266519951,2cyclictest0-21swapper/119:45:031
266519950,5cyclictest0-21swapper/121:05:151
266459953,1cyclictest25473-21/usr/sbin/munin23:30:030
266459953,1cyclictest22303-21/usr/sbin/munin22:15:040
266459952,2cyclictest0-21swapper/019:45:040
266459951,2cyclictest0-21swapper/000:15:030
266459950,4cyclictest0-21swapper/021:10:030
266459950,4cyclictest0-21swapper/020:40:050
266639943,1cyclictest18273-21cut00:20:043
266639941,3cyclictest93602chrt19:36:523
266639940,4cyclictest0-21swapper/322:10:033
266639940,4cyclictest0-21swapper/321:55:043
266639940,4cyclictest0-21swapper/320:45:043
266639940,4cyclictest0-21swapper/319:30:123
266639940,4cyclictest0-21swapper/300:00:043
266639940,3cyclictest7707-21cut20:40:063
266639940,3cyclictest4990-21latency_hist20:35:013
266639940,3cyclictest32395-21wc19:20:003
266639940,3cyclictest29992-21grep22:30:053
266639940,3cyclictest25571-21apt-get00:35:033
266639940,3cyclictest24956-21gpg-connect-age22:20:003
266639940,3cyclictest22395-21date21:10:023
266639940,3cyclictest19613-21dpkg22:10:013
266639940,3cyclictest1505-21/usr/sbin/munin22:35:133
266639940,3cyclictest12860-21sed00:10:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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