You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-07-06 - 06:29
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
Characteristics of the 20 highest latencies:
System rackcslot2.osadl.org (updated Sun Jul 06, 2025 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
947127551,6sleep10-21swapper/119:04:581
949527049,8sleep00-21swapper/019:05:110
25092600,0sleep00-21swapper/020:13:010
9927993030,0cyclictest0-21swapper/122:19:381
992799290,27cyclictest22982-21hddtemp_smartct22:33:041
9926992929,0cyclictest0-21swapper/022:17:300
9926992828,0cyclictest0-21swapper/022:53:480
9927992710,7cyclictest0-21swapper/100:02:481
9926992710,3cyclictest0-21swapper/023:56:580
992799266,19cyclictest0-21swapper/122:11:101
9927992610,2cyclictest0-21swapper/121:52:541
9927992610,11cyclictest0-21swapper/100:03:411
9927992525,0cyclictest0-21swapper/119:33:251
9927992521,3cyclictest2691-21apache222:57:411
992799250,21cyclictest27877-21ssh22:39:041
9926992518,2cyclictest7-21ksoftirqd/019:38:030
9926992517,3cyclictest0-21swapper/023:23:000
9926992516,2cyclictest0-21swapper/000:08:020
9926992510,3cyclictest0-21swapper/023:32:370
9926992510,14cyclictest0-21swapper/000:05:330
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional