On Fri, 6 Jan 2012 19:41:39 -0500 "Walter Dnes" <waltd...@waltdnes.org> wrote:
> In my 3 gig /usr directory, over 2 gigs are devoted to > Gentoo-specific stuff that a binary distro like Redhat does not > require. What do we do if /usr is read-only? Symlink or bindmount > onto it? Remount read/write whenever necessary (i.e. when doing administrative tasks). > And sharing binaries does *NOT* work in Gentoo, unless *EVERYBODY* > has *IDENTICAL* machines, or else you drop down to the lowest common > denominator. That's one of the main points about Gentoo. We don't > use generic i686 code, we use code optimised for our machines. I'm > not a "Gentoo ricer", but here's a prime example... a 3 and 1/2 year > old Dell Dimension 530 with an onboard Intel graphics chip. Right > after the initial install (i686 code from the install CD), the > onboard graphics could not handle NHL Gamecentre Live fullscreen > (1920x1080). There would be constant stuttering. After I emerged > system and world with "-march=native -O2 -mfpmath=sse", it handles > NHL Gamecentre Live fullscreen, and even a 1080p movie clip > downloaded from Youtube. Fedora with generic i686 code would not > work for me. Sharing is usually useful when everybody actually has identical machines. Also, there's '-mtune' switch in gcc. -- Best regards, Michał Górny
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