I am curious as to why the performance (throughput) does not increase linearly with the number of slices. I am using a scale filter (scale=1280:720:flags=bilinear) to convert from 1080 to 720p in a stand alone app.
When I go from 1 to 2 slices and 2 to 4 slices I see a large increase in throughput. However, going from 4 to 8 slices there is almost no change at all. Can anyone enlighten me as to the reason for this? There are plenty of cores available on the machines I tried it on. Thanks Rob
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