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2019-07-24 - 00:14

AMD Athlon(tm) 64 Processor 2800+, Linux 3.18.13-rt10 (Profile)

Latency plot of system in rack #1, slot #3
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 -n -a0 -t1 -p99 -i200 -h400 -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Characteristics of the 20 highest latencies:
System rack1slot3.osadl.org (updated Thu Mar 30, 2017 00:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1141099112110,1cyclictest12837-21kworker/0:100:10:220
1141099110108,1cyclictest21782-21kworker/0:323:34:400
1141099109107,1cyclictest12837-21kworker/0:100:08:310
1141099108106,1cyclictest23338-21kworker/0:019:51:280
1141099108106,1cyclictest21782-21kworker/0:322:10:130
1141099107105,1cyclictest21782-21kworker/0:323:07:050
1141099107105,1cyclictest21782-21kworker/0:322:14:550
1141099106104,1cyclictest21782-21kworker/0:321:55:260
1141099106104,1cyclictest21782-21kworker/0:321:29:580
1141099106104,1cyclictest20957-21kworker/0:200:32:260
1141099105103,1cyclictest12837-21kworker/0:100:22:400
1141099104102,1cyclictest8209-21kworker/0:119:20:430
1141099103101,1cyclictest23338-21kworker/0:021:21:030
1141099103101,1cyclictest21782-21kworker/0:322:04:000
1141099102100,1cyclictest21782-21kworker/0:322:22:200
114109910098,1cyclictest23338-21kworker/0:021:06:570
114109910098,1cyclictest21782-21kworker/0:323:56:440
114109910098,1cyclictest21782-21kworker/0:323:10:570
11410999997,1cyclictest23338-21kworker/0:020:21:030
11410999997,1cyclictest23338-21kworker/0:020:06:260
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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