You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2025-12-18 - 10:03
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 10 highest latencies:
System rack0slot2.osadl.org (updated Thu Dec 18, 2025 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
120633725343,7sleep60-21swapper/619:06:596
120651525217,30sleep70-21swapper/719:09:327
120636224029,8sleep40-21swapper/419:07:214
120650423928,8sleep50-21swapper/519:09:225
1206824993533,2cyclictest1258780-21kworker/u16:1+flush-8:019:40:074
1206835993428,5cyclictest1666793-21latency_hist23:04:377
1206835993428,5cyclictest1666793-21latency_hist23:04:377
1206832993129,2cyclictest1793163-21kworker/u16:2+flush-8:000:14:376
1206832993129,2cyclictest1216318-21kworker/u16:2+events_unbound19:29:536
1206824993129,2cyclictest1288582-21kworker/u16:4+flush-8:020:09:374
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional