You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-11-08 - 10:43
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 Sat Nov 08, 2025 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1458527249,8sleep10-21swapper/119:03:481
1455527159,8sleep00-21swapper/019:03:290
273222620,0sleep10-21swapper/121:46:441
15062993535,0cyclictest0-21swapper/122:37:171
15062993510,2cyclictest0-21swapper/122:53:131
15061993410,2cyclictest0-21swapper/000:00:170
15061993110,17cyclictest0-21swapper/021:46:080
15061993028,2cyclictest0-21swapper/021:54:440
15061993010,2cyclictest0-21swapper/000:19:500
1488223027,1sleep00-21swapper/019:06:520
15061992822,4cyclictest20725-21apache223:38:560
15061992820,5cyclictest20725-21apache223:28:230
15062992722,2cyclictest20699-21apache221:37:461
1506199270,23cyclictest17528-21ssh00:23:280
15062992612,8cyclictest45-21kswapd000:11:521
15061992619,5cyclictest97850irq/107-eth1-rx23:55:510
15062992510,2cyclictest0-21swapper/123:47:181
15062992510,14cyclictest29587-21kworker/1:120:08:551
15061992521,3cyclictest20725-21apache220:17:300
15061992520,3cyclictest6252-21ssh22:42:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional