You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-12-02 - 04:13
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 rackdslot2.osadl.org (updated Tue Dec 02, 2025 00:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
136691229168,50phc2sys0-21swapper/319:06:543
283452206172,23sleep20-21swapper/219:06:162
285532203168,23sleep00-21swapper/019:08:510
285192203169,24sleep10-21swapper/119:08:251
2864328462,14sleep10-21swapper/119:10:021
245862710,4sleep224589-21irqrtprio21:15:182
28934997010,19cyclictest11810-21cat00:10:220
45692680,3sleep14572-21needreboot23:55:251
2893499686,18cyclictest28570-21cat23:40:000
314152610,2sleep10-21swapper/122:35:281
314152610,2sleep10-21swapper/122:35:281
2893499610,21cyclictest14025-21sed00:15:200
28937995925,4cyclictest41-21ksoftirqd/322:45:173
28937995831,3cyclictest41-21ksoftirqd/319:35:013
2893499580,21cyclictest4422-21cat23:55:210
28937995725,8cyclictest41-21ksoftirqd/322:35:143
28937995725,8cyclictest41-21ksoftirqd/322:35:143
28937995725,8cyclictest41-21ksoftirqd/320:45:003
28937995721,7cyclictest41-21ksoftirqd/320:35:133
28937995618,9cyclictest41-21ksoftirqd/300:35:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional