You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-09-13 - 22:11
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 rack3slot6.osadl.org (updated Sat Sep 13, 2025 12:45:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
293399911091,9cyclictest14-21ksoftirqd/010:25:130
293399910673,22cyclictest193462sleep009:40:160
293399910673,22cyclictest193462sleep009:40:150
29345991037,24cyclictest0-21swapper/111:05:121
29345991028,21cyclictest0-21swapper/107:30:151
29345991018,21cyclictest0-21swapper/111:15:181
293399910175,18cyclictest14-21ksoftirqd/009:25:130
29345991008,25cyclictest0-21swapper/108:10:111
29345991008,24cyclictest0-21swapper/110:20:141
29345991007,22cyclictest0-21swapper/111:35:161
29345991007,22cyclictest0-21swapper/110:55:161
293459910011,82cyclictest0-21swapper/111:25:141
2934599998,26cyclictest0-21swapper/111:10:111
2934599998,23cyclictest0-21swapper/110:10:141
2934599996,24cyclictest0-21swapper/108:50:181
29339999971,18cyclictest14-21ksoftirqd/012:35:230
2934599987,24cyclictest0-21swapper/112:10:131
29345999810,25cyclictest0-21swapper/109:55:131
29339999873,14cyclictest14-21ksoftirqd/007:25:120
2934599978,22cyclictest0-21swapper/111:30:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional