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2021-06-17 - 20:36

Intel(R) Core(TM) i3-2310E CPU @ 2.10GHz, Linux 4.19.1-rt3 (Profile)

Latency plot of system in rack #8, slot #2
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by a total of 2 SMIs that occured during the measurement.
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 --smi -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 20 highest latencies:
System rack8slot2.osadl.org (updated Thu Jun 17, 2021 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
656799141136,4cyclictest0-21swapper/207:20:232
656799126123,2cyclictest0-21swapper/207:35:352
2789521100,0sleep00-21swapper/009:55:310
6073210344,18sleep00-21swapper/007:17:310
6002210342,20sleep10-21swapper/107:16:361
1089321000,1sleep110895-21basename12:25:311
311832990,0sleep20-21swapper/210:31:042
151122880,2sleep0656599cyclictest08:50:420
31492840,1sleep30-21swapper/312:16:193
620628246,21sleep30-21swapper/307:19:153
601828148,20sleep20-21swapper/207:16:492
257972520,1sleep00-21swapper/012:06:140
143792450,0sleep00-21swapper/009:40:360
250422410,1sleep00-21swapper/009:51:140
6566994029,10cyclictest0-21swapper/107:20:231
202792300,0sleep30-21swapper/310:20:393
174542290,0sleep30-21swapper/310:17:343
6565992825,2cyclictest0-21swapper/012:45:330
6162280,0sleep10-21swapper/112:47:281
6566992616,8cyclictest0-21swapper/107:35:351
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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