You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2025-12-18 - 04:22
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 Dec 18, 2025 00:44:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6764521140,111pltrace0-21swapper/319:10:013
7475521050,0pltrace0-21swapper/623:56:146
676452980,90pltrace0-21swapper/719:08:217
397952830,79pltrace0-21swapper/619:05:076
683927245,9sleep10-21swapper/119:07:141
680527258,10sleep50-21swapper/519:06:465
604127245,22sleep20-21swapper/219:05:162
672825844,10sleep00-21swapper/019:06:010
668725844,10sleep40-21swapper/419:05:264
2098652260,0pltrace0-21swapper/721:30:117
723399240,16cyclictest0-21swapper/700:26:467
2268552240,0pltrace0-21swapper/720:34:327
1711352210,16pltrace54-21ksoftirqd/420:25:124
1477452210,15pltrace54-21ksoftirqd/423:15:184
1028752210,7pltrace0-21swapper/700:05:187
314452200,15pltrace54-21ksoftirqd/420:00:564
2763152200,15pltrace54-21ksoftirqd/422:40:134
812652190,14pltrace54-21ksoftirqd/422:04:004
7233991915,2cyclictest0-21swapper/722:39:057
7230991914,2cyclictest0-21swapper/621:58:176
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional