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Improving performance of rav1d video decoder

(ohadravid.github.io)
305 points todsacerdoti | 1 comments | 22 May 25 11:59 UTC | HN request time: 0s | source
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lubesGordi ◴[22 May 25 13:44 UTC] No.44062002[source]▶
Honestly its a little surprising the first optimization he found was something fairly obvious just by using perf. I thought they had discussed the zeroing buffers issue in the first post? The second optimization was definitely more involved/interesting but was still pointed at by perf. Don't underestimate that tool!
replies(2): >>44062673 #>>44067686 #
1. sounds ◴[22 May 25 14:50 UTC] No.44062673[source]▶
He came from the aarch64 perspective on an Apple device. I often experience someone spotting an "obvious in hindsight" gap because they come from a different background.