Opened 17 years ago
Last modified 9 years ago
#13914 closed enhancement
x264 G5 variant — at Initial Version
Reported by: | jmcintyre | Owned by: | macports-tickets@… |
---|---|---|---|
Priority: | Normal | Milestone: | |
Component: | ports | Version: | 1.6.0 |
Keywords: | x264 G5 | Cc: | |
Port: |
Description
G5 based computers see a significant performance boost in x264 if the compiler is told to build specifically for it. I've created a simple variant for the G5.
variant G5 {
configure.cflags-append "-mcpu=970 -mtune=970 -mpowerpc64 -mpowerpc-gpopt -fast -mabi=altivec -maltivec"
}
Most of the improvements come from the first four parameters. You could argue that -fast isn't really a G5 specific tag, so it shouldn't be here, but since this is trying to tune as tightly for performance, I think it is worth having. I can make a patch file if it is needed.
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