You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2023-10-04 - 08:02
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 rack0slot3.osadl.org (updated Wed Oct 04, 2023 00:46:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25111722396377,13sleep130-21swapper/1319:08:445
25110452355335,13sleep140-21swapper/1419:06:536
25110632354312,14sleep150-21swapper/1519:07:107
25112602348329,13sleep90-21swapper/919:10:0115
25111422347307,33sleep30-21swapper/319:08:179
25110652345326,13sleep00-21swapper/019:07:100
25110132345305,13sleep60-21swapper/619:06:2812
25109622345325,13sleep80-21swapper/819:05:4114
25112432343324,13sleep110-21swapper/1119:09:463
25110892343322,14sleep70-21swapper/719:07:3313
25110602343324,13sleep120-21swapper/1219:07:064
25112162339318,13sleep40-21swapper/419:09:2210
25109772337316,14sleep50-21swapper/519:05:5411
25111312335316,13sleep100-21swapper/1019:08:082
25111042333313,14sleep20-21swapper/219:07:458
25110072330311,13sleep10-21swapper/119:06:231
251145799864,41cyclictest2612342-21diskmemload23:57:290
251145799864,41cyclictest2612342-21diskmemload23:57:280
2511457997916,21cyclictest0-21swapper/019:40:340
2511457997816,21cyclictest0-21swapper/022:59:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional