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2022-01-23 - 11:18

Intel(R) Xeon(R) CPU E3-1220L V2 @ 2.30GHz, Linux 4.9.47-rt37 (Profile)

Latency plot of system in rack #a, slot #0
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 10 highest latencies:
System rackaslot0.osadl.org (updated Sun Jan 23, 2022 00:44:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
119732880,2sleep00-21swapper/019:05:280
162302830,0sleep216231-21sshd21:29:302
69042810,1sleep06903-21bash22:11:540
299412670,0sleep10-21swapper/121:12:101
17562620,1sleep36326-21diskmemload23:25:373
179432600,0sleep21546-21nfsd21:48:172
92452550,0sleep30-21swapper/321:53:383
71772540,0sleep10-21swapper/123:07:431
293242540,0sleep10-21swapper/100:33:171
88112530,0sleep20-21swapper/221:56:392
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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