You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-07-12 - 11:19
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 Sat Jul 12, 2025 00:46:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17191312358317,33sleep00-21swapper/019:08:250
171966099357357,0cyclictest0-21swapper/921:20:2315
17189372357310,14sleep80-21swapper/819:05:5114
17190302355330,17sleep10-21swapper/119:07:051
17177512355346,6sleep110-21swapper/1119:05:223
17189782354312,14sleep90-21swapper/919:06:2515
17192152349325,15sleep50-21swapper/519:09:3511
17189832348324,15sleep140-21swapper/1419:06:316
17192342342320,14sleep60-21swapper/619:09:5112
17156812342319,15sleep150-21swapper/1519:05:107
17190782340318,14sleep40-21swapper/419:07:4010
17190142340318,14sleep20-21swapper/219:06:508
17189652340317,15sleep130-21swapper/1319:06:125
17189362339316,15sleep70-21swapper/719:05:5013
17189392338316,14sleep100-21swapper/1019:05:532
17192032337314,15sleep120-21swapper/1219:09:254
17189722335312,15sleep30-21swapper/319:06:199
171964099320319,1cyclictest491rcuc/321:20:239
171966699311310,1cyclictest1834429-21nodev-device-ev21:20:223
1719670993030,302cyclictest1945535-21daemon-init23:30:184
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional