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2022-01-16 - 10:45

Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz, Linux 3.18.69-rt75 (Profile)

Latency plot of system in rack #8, slot #5
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
Characteristics of the 20 highest latencies:
System rack8slot5.osadl.org (updated Sun Jan 16, 2022 00:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1592128765,18sleep70-21swapper/714:01:397
1592928160,8sleep60-21swapper/614:01:466
1591826443,8sleep40-21swapper/414:01:364
1592826241,8sleep50-21swapper/514:01:455
1586525635,18sleep00-21swapper/014:00:520
1586825433,8sleep30-21swapper/314:00:553
1582025332,18sleep20-21swapper/214:00:142
1581024938,8sleep10-21swapper/114:00:051
1624299197,7cyclictest0-21swapper/317:25:543
16267991613,2cyclictest0-21swapper/719:17:197
16267991613,2cyclictest0-21swapper/718:54:537
16267991613,2cyclictest0-21swapper/717:09:307
16267991613,2cyclictest0-21swapper/716:49:587
1626799160,15cyclictest0-21swapper/719:26:277
1626799160,15cyclictest0-21swapper/719:06:277
1626799160,15cyclictest0-21swapper/719:06:277
1626799160,15cyclictest0-21swapper/716:46:487
1626799160,15cyclictest0-21swapper/716:33:417
1626799160,15cyclictest0-21swapper/716:28:367
16257991613,2cyclictest0-21swapper/618:50:456
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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