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Please explain/comment this profiler results

Question asked by Raistmer on May 4, 2012
Latest reply on May 15, 2012 by Raistmer

APP_profiler2.4_C-60.png

 

I have few questions about this profiler rresults:

 

1) How is possible to get simultaneous writes in 2 queues? (to same device). There are 3 writes that overlap in time to the same device.

2) why so big gap between 2 kernel executions? What prevents to execute next kernel? And, as result of that gap, why so big ReadBuffer API call time?

 

EDIT: here write overlapping seen more clearer:

APP_profiler2.4_C-60_buffer_write_overlap.png

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