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2019-07-17 - 00:52

VIA Samuel 2, Linux 3.18.9-rt4 (Profile)

Latency plot of system in rack #3, slot #7
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l100000000 -m -n -a0 -t1 -p98 -i200 -h1000 -q
Total number of samples: 100 million
Resolution of latency scale: reduced 
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 20 highest latencies:
System rack3slot7.osadl.org (updated Tue Jul 16, 2019 12:44:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14991530watchdog/024387-21which07:20:070
247439814912cyclictest1442-21runrttasks12:11:350
247439814812cyclictest4704-21runrttasks10:58:380
247439814512cyclictest28374-21runrttasks07:41:400
247439814412cyclictest4704-21runrttasks10:03:000
247439814412cyclictest4704-21runrttasks09:47:360
247439814212cyclictest4704-21runrttasks12:35:180
247439814112cyclictest4704-21runrttasks11:23:570
247439814012cyclictest4704-21runrttasks12:29:440
247439813813cyclictest4704-21runrttasks11:19:410
247439813813cyclictest4704-21runrttasks10:44:510
247439813812cyclictest30845-21latency_hist12:45:060
247439813712cyclictest21262-21runrttasks08:01:560
247439813711cyclictest24102-21runrttasks07:30:250
247439813612cyclictest9835-21runrttasks11:30:380
247439813612cyclictest4704-21runrttasks10:54:530
247439813612cyclictest4704-21runrttasks10:10:220
247439813612cyclictest4704-21runrttasks09:07:340
247439813612cyclictest4704-21runrttasks07:50:350
247439813612cyclictest19880-21runrttasks11:50:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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