#13914: x264 G5 variant ---------------------------------------+------------------------------------ Reporter: jmcintyre@dfsoftware.com | Owner: macports-tickets@lists.macosforge.org Type: enhancement | Status: new Priority: Normal | Milestone: Port Enhancements Component: ports | Version: 1.6.0 Resolution: | Keywords: x264 G5 ---------------------------------------+------------------------------------ Changes (by jmpp@macports.org): * milestone: => Port Enhancements Old 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.
New 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. -- Ticket URL: <http://trac.macosforge.org/projects/macports/ticket/13914#comment:1> MacPorts </projects/macports> Ports system for Mac OS