You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-12-05 - 07:14
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 Fri Dec 05, 2025 00:46:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22042702401375,18sleep70-21swapper/719:07:5113
22042882366321,15sleep10-21swapper/119:08:011
22042662366321,15sleep30-21swapper/319:07:479
22031972366357,5sleep40-21swapper/419:05:2310
22043672365321,14sleep20-21swapper/219:09:088
22043792360317,34sleep140-21swapper/1419:09:196
22041432360316,35sleep150-21swapper/1519:06:077
22043712358316,15sleep60-21swapper/619:09:1112
22043782357313,35sleep130-21swapper/1319:09:185
22041892356313,13sleep80-21swapper/819:06:4914
22041732354309,15sleep90-21swapper/919:06:3315
22043822350310,32sleep00-21swapper/019:09:210
22008622349340,6sleep50-21swapper/519:05:0811
22042562343321,14sleep100-21swapper/1019:07:382
22042752340318,14sleep110-21swapper/1119:07:563
22041402340318,14sleep120-21swapper/1219:06:044
220483499310309,1cyclictest2477768-21nodev-device-ev00:25:2315
220483299290289,1cyclictest2336680-21nodev-device-ev21:40:1714
220483799283283,0cyclictest0-21swapper/1021:55:222
220481299226224,1cyclictest2349498-21nodev-device-ev21:55:228
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional