You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2024-04-19 - 23:54
Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 rack5slot2.osadl.org (updated Fri Apr 19, 2024 12:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
167222206190,11sleep10-21swapper/107:07:521
168752185168,12sleep00-21swapper/007:09:480
168072184167,12sleep20-21swapper/207:08:572
146682184167,12sleep30-21swapper/307:05:053
291772450,0sleep00-21swapper/010:58:140
170459981,3cyclictest12902-21perf09:10:010
170459980,7cyclictest0-21swapper/010:30:110
170609970,6cyclictest0-21swapper/309:50:103
170459971,3cyclictest607-21sendmail-msp12:20:010
170549965,1cyclictest0-21swapper/212:28:282
170459962,4cyclictest25156-21munin-run07:25:000
170459960,5cyclictest0-21swapper/012:05:100
8809250,0sleep20-21swapper/210:25:342
170549955,0cyclictest31-21ksoftirqd/209:10:012
170549955,0cyclictest19637-21kworker/2:210:39:142
170549955,0cyclictest19637-21kworker/2:209:43:152
170549955,0cyclictest0-21swapper/211:21:242
170549950,5cyclictest61-21kswapd011:45:122
170549950,5cyclictest21861-21ssh11:52:582
170549950,5cyclictest0-21swapper/212:34:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional