You are here: Home / Projects / QA Farm Realtime / Latency plots / 
2021-06-20 - 03:32

Intel(R) Core(TM) i5-8365UE CPU @ 1.60GHz, Linux 5.9.1-rt18 (Profile)

Latency plot of system in rack #e, 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 -n -p90 -i200 -h400 -a2-3 -t2 -q done
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 rackeslot2.osadl.org (updated Sun Jun 20, 2021 00:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1814290180,17cyclictest0-21swapper/321:57:533
1814290170,14cyclictest0-21swapper/321:42:593
18142901613,3cyclictest0-21swapper/300:10:013
1814290160,15cyclictest0-21swapper/319:45:463
1814290160,14cyclictest0-21swapper/320:44:433
1814290160,0cyclictest0-21swapper/300:10:053
18141901614,1cyclictest0-21swapper/223:00:002
1814190160,15cyclictest0-21swapper/222:40:012
1814190160,15cyclictest0-21swapper/220:12:572
18142901514,1cyclictest0-21swapper/322:10:003
18142901514,0cyclictest0-21swapper/319:12:533
18142901513,1cyclictest0-21swapper/323:52:583
1814290150,1cyclictest0-21swapper/321:25:033
1814290150,15cyclictest0-21swapper/323:40:393
1814290150,15cyclictest0-21swapper/323:26:133
1814290150,15cyclictest0-21swapper/323:11:423
1814290150,15cyclictest0-21swapper/320:53:083
1814290150,15cyclictest0-21swapper/319:57:353
1814290150,0cyclictest0-21swapper/320:00:183
1814290150,0cyclictest0-21swapper/319:30:483
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional