You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2024-04-25 - 13:37
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 rack4slot6.osadl.org (updated Thu Apr 25, 2024 00:44:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2658452890,84pltrace0-21swapper/319:05:013
2658452870,83pltrace0-21swapper/719:05:137
2917627561,10sleep60-21swapper/619:09:046
2920127460,10sleep20-21swapper/219:09:242
2916227460,10sleep10-21swapper/119:08:511
2894627445,10sleep00-21swapper/019:05:460
1202852730,2pltrace0-21swapper/622:40:026
2900726551,10sleep50-21swapper/519:06:395
2899725844,10sleep40-21swapper/419:06:304
2768752360,5pltrace0-21swapper/722:10:267
3222652300,2pltrace0-21swapper/719:18:127
2099052300,0pltrace0-21swapper/721:00:267
2209052280,3pltrace0-21swapper/722:00:097
536552270,2pltrace0-21swapper/721:31:287
2659352270,0pltrace0-21swapper/721:10:277
2947199240,23cyclictest0-21swapper/619:28:436
2379852210,7pltrace0-21swapper/721:10:007
1651452210,4pltrace0-21swapper/721:51:387
2988352200,0pltrace0-21swapper/700:14:207
29458992011,8cyclictest0-21swapper/320:07:323
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional