You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2024-06-16 - 10:35
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 rack0slot4.osadl.org (updated Sun Jun 16, 2024 00:46:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4371452397374,14sleep150-21swapper/1519:05:137
4396822367359,5sleep100-21swapper/1019:06:292
4397122358314,34sleep50-21swapper/519:06:5711
4398372357310,15sleep80-21swapper/819:08:3614
4399362350308,14sleep00-21swapper/019:09:490
4398862342319,14sleep140-21swapper/1419:09:156
4397752342316,16sleep60-21swapper/619:07:4512
4397532342318,15sleep20-21swapper/219:07:258
4398132341296,15sleep30-21swapper/319:08:149
4397192341317,15sleep120-21swapper/1219:07:034
4397182340316,15sleep110-21swapper/1119:07:023
4397312339317,14sleep10-21swapper/119:07:081
4396852339316,15sleep130-21swapper/1319:06:325
4398952338313,15sleep40-21swapper/419:09:2010
4379672338313,15sleep70-21swapper/719:05:2113
4397782337314,14sleep90-21swapper/919:07:4815
56447821170,0sleep10-21swapper/121:30:171
440364994734,9cyclictest0-21swapper/1322:20:325
440364994541,0cyclictest0-21swapper/1320:10:245
440361994545,0cyclictest0-21swapper/1219:47:444
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional