Re: Compiling x86 with and without frame pointer

From: Doug Ledford (dledford@redhat.com)
Date: Thu Nov 21 2002 - 15:00:28 EST


On Thu, Nov 21, 2002 at 08:41:27PM +0100, Willy Tarreau wrote:
> Yes, you're quite right about this. I had my mind obsessed all the day reducing
> a bzImage to fit it on a diskette, and didn't immediately realise that other
> people were speaking pure vmlinux in this discussion :-)

I had thought about that as well, but then my answer was that if the
space is that important on the floppy, then we (meaning Red Hat) could
compile out BOOT kernel with whatever option gave the smallest compressed
image and compile installed kernels with whatever gave actual best
performance (with a + given to kernels that have a frame pointer in the
event of a tie or insignificant performance difference).

Of course you may be talking about a system that always boots from floppy
and sits in some closet for years or some embedded system where that 4k in
flash is super important, so situational decision rules apply ;-)

-- 
  Doug Ledford <dledford@redhat.com>     919-754-3700 x44233
         Red Hat, Inc. 
         1801 Varsity Dr.
         Raleigh, NC 27606
  
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