You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-08-28 - 22:25
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 50 highest latencies:
System rackeslot5.osadl.org (updated Thu Aug 28, 2025 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
672699350,17cyclictest151rcu_preempt09:16:423
671899310,30cyclictest31035-21cron09:10:001
672699300,29cyclictest27834-21cron07:55:023
6722993028,1cyclictest3266-21cron09:20:002
671699300,29cyclictest609-21dbus-daemon11:40:010
6722992927,1cyclictest0-21swapper/207:45:022
6722992927,1cyclictest0-21swapper/207:45:012
672299290,28cyclictest21404-21apt-get08:50:122
6718992929,0cyclictest0-21swapper/111:50:131
6718992927,1cyclictest626-21gdbus09:45:001
671899290,28cyclictest0-21swapper/111:00:131
671899290,28cyclictest0-21swapper/108:25:131
671699290,28cyclictest25460-21apt-get11:15:130
671699290,28cyclictest0-21swapper/007:50:130
672699280,27cyclictest0-21swapper/309:55:133
672699280,27cyclictest0-21swapper/309:05:133
672699280,27cyclictest0-21swapper/308:15:133
672699280,0cyclictest0-21swapper/309:30:133
6722992827,1cyclictest12613-21cron09:40:002
6722992827,1cyclictest0-21swapper/209:40:122
6722992826,1cyclictest9709-21apt-get08:25:122
6722992826,1cyclictest7050-21apt-get11:45:152
6722992826,1cyclictest25518-21cron07:50:022
6722992826,1cyclictest15993-21turbostat.cron07:30:002
672299280,27cyclictest0-21swapper/208:55:132
672299280,0cyclictest15789-21apt-get10:55:142
6718992828,0cyclictest5026-21apt-get08:15:131
6718992828,0cyclictest0-21swapper/109:10:121
6718992826,1cyclictest17847-21sendmail11:00:011
671899280,28cyclictest14098-21perf08:35:011
6716992826,1cyclictest609-21dbus-daemon10:30:000
671699280,27cyclictest0-21swapper/007:55:130
671699280,0cyclictest0-21swapper/008:35:130
6726992727,0cyclictest0-21swapper/311:45:143
6726992727,0cyclictest0-21swapper/309:40:123
6726992727,0cyclictest0-21swapper/309:25:133
6726992727,0cyclictest0-21swapper/307:15:143
672699270,0cyclictest0-21swapper/311:45:013
672699270,0cyclictest0-21swapper/308:20:133
6722992726,1cyclictest18695-21apt-get12:10:152
672299270,27cyclictest0-21swapper/211:40:132
672299270,0cyclictest0-21swapper/210:25:122
6718992727,0cyclictest0-21swapper/108:05:131
671899270,27cyclictest0-21swapper/110:20:131
671899270,0cyclictest4132-21apt-get10:30:081
671899270,0cyclictest27809-21apt-get11:20:131
6716992727,0cyclictest8817-21apt-get10:40:140
6716992727,0cyclictest11139-21apt-get10:45:120
6716992726,1cyclictest11424-21perf11:55:000
671699270,0cyclictest0-21swapper/012:35:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional