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2026-01-23 - 13:54
[ 290.152] (II) VESA: driver for VESA chipsets: vesa >
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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 rackdslot4.osadl.org (updated Fri Jan 23, 2026 00:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591207173,23phc2sys0-21swapper/319:09:183
319972203170,22sleep10-21swapper/119:09:121
318092202169,22sleep00-21swapper/019:06:500
319932196164,21sleep20-21swapper/219:09:092
1495621520,5sleep13235399cyclictest19:40:001
3206128464,10sleep10-21swapper/119:10:011
3206128464,10sleep10-21swapper/119:10:011
303802610,2sleep30-21swapper/321:15:143
138491570,1ptp4l401ktimersoftd/322:24:043
284472550,3sleep20-21swapper/222:15:182
138491520,1ptp4l391rcuc/323:42:083
291562510,2sleep10-21swapper/122:15:251
184992510,4sleep0101ktimersoftd/020:50:160
121842500,1sleep212188-21timerwakeupswit23:50:262
77762460,2sleep00-21swapper/022:40:110
3235499460,45cyclictest0-21swapper/223:15:232
3235499460,44cyclictest0-21swapper/223:05:232
134991460,7getstats3235599cyclictest19:49:593
3235499450,44cyclictest0-21swapper/221:10:232
3235499450,43cyclictest0-21swapper/221:40:332
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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