On Fri, Sep 10, 2004 at 08:05:21PM +0100, Paul Jakma wrote:
> On Fri, 10 Sep 2004, John P. Looney wrote:
> > It'd be cool if you could have a daemon running in the background,
> > polling for new releases of GCC, then every time a new compiler
> > comes out, it'd re-compile your whole OS in the background, so you
> > know you have all the fastest binaries.
> Actually, what would be cute here is to do the following:
> - compile everything with profiling enabled, specifically
> -fprofile-arcs
>> - every time after above when you recompile the distro, use the
> profile data collected previously for -fbranch-probabilities
on a serious note are there also options for laying out the binary in
such a way to minimize page faults?
> I'm willing to bet a machine which did the above could potentially be
> an order of magnitude faster, and I'd really like to investigate this
> - if someone would send me a 4-way Opteron with at least 8GB of RAM
> to facilitate research into the above, i'd be very grateful.
i can send you a pentium 75 with 8 megs of ram. you'd notice
performance gains more there.
kevin
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