You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-01-17 - 05:00
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 Fri Jan 17, 2025 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2020127057,8sleep10-21swapper/119:05:411
322092650,0sleep00-21swapper/023:59:240
2020326451,8sleep00-21swapper/019:05:420
20706993333,0cyclictest0-21swapper/021:13:190
20706993210,3cyclictest0-21swapper/021:38:290
20707992910,0cyclictest0-21swapper/121:09:101
20706992927,1cyclictest81ktimersoftd/022:34:130
20707992811,2cyclictest3257-21kworker/u4:122:54:271
2070799280,2cyclictest31506-21seq22:32:321
2070699270,24cyclictest0-21swapper/023:45:480
20707992624,2cyclictest18141-21apache221:48:531
20707992624,1cyclictest18115-21apache221:17:101
20706992621,2cyclictest29303-21missed_timers22:29:160
2070799250,22cyclictest26908-21sshd23:53:531
20706992522,2cyclictest13197-21seq22:50:570
20706992519,5cyclictest593-21avahi-daemon19:47:020
20707992424,0cyclictest0-21swapper/119:37:061
20707992419,3cyclictest18115-21apache222:02:351
20707992413,7cyclictest695-21diskmemload23:05:591
20706992419,5cyclictest18141-21apache222:05:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional