You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-08-21 - 22:12
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 rack1slot2.osadl.org (updated Thu Aug 21, 2025 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2081224026,0sleep00-21swapper/006:21:020
2091123627,0sleep30-21swapper/306:22:133
2105123523,0sleep10-21swapper/106:23:511
2113823127,0sleep20-21swapper/206:24:532
329970,0watchdog/30-21swapper/308:00:593
29925070,0irq/32-eth0-rx-28623-21python11:30:533
339960,0migration/332634-21switchtime08:40:553
339960,0migration/320405-21runrttasks11:26:253
339960,0migration/31597-21munin-node10:40:483
339960,0migration/313869-21sh10:06:343
329960,0watchdog/32312-21kthreadcore10:20:513
329960,0watchdog/30-21swapper/311:38:273
329960,0watchdog/30-21swapper/311:19:273
329960,0watchdog/30-21swapper/311:07:113
329960,0watchdog/30-21swapper/311:02:233
329960,0watchdog/30-21swapper/310:45:513
329960,0watchdog/30-21swapper/310:39:353
329960,0watchdog/30-21swapper/310:34:313
329960,0watchdog/30-21swapper/310:25:313
329960,0watchdog/30-21swapper/309:41:033
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional