Gentoo Logo
Gentoo Spaceship




Note: Due to technical difficulties, the Archives are currently not up to date. GMANE provides an alternative service for most mailing lists.
c.f. bug 424647
List Archive: gentoo-amd64
Navigation:
Lists: gentoo-amd64: < Prev By Thread Next > < Prev By Date Next >
Headers:
To: gentoo-amd64@g.o
From: "Hemmann, Volker Armin" <volker.armin.hemmann@...>
Subject: Re: Re: Old topic comes round again: -Ox optimizations.
Date: Thu, 3 Nov 2005 18:41:16 +0100
On Thursday 03 November 2005 16:27, Duncan wrote:
> Hemmann, Volker Armin posted
> <200511031222.04016.volker.armin.hemmann@...>, excerpted
>
> below,  on Thu, 03 Nov 2005 12:22:03 +0100:
> > Os is 'forbidden' for glibc, because there were some gcc bugs, that
> > miscompiled glibc with Os.
>
> I've actually run an -Os compiled glibc here (hacked the ebuild to
> remove the filterflags/replaceflags/stripflags calls) for some time, no
> noticed issues (tho I haven't tried it with gcc-4.x yet).
>
> However, it's unsupported, and because glibc is linked by virtually
> everything, I couldn't be sure whether problems I might have were due to
> it or not.  The thing that switched me back was attempting to trace down
> why xorg had quite responding to CTRL-ALT-Fx VT-switch commands.  I later
> found out it was a known issue with that version on some configs, fixed in
> a later version, but glibc is too big a compile (expecially when it's
> compiled twice, once for 32-bit and once for 64-bit, up to four times for
> those poor folks running nptl without nptl-only, just the two compiles
> here, with a dual Opteron, is long, can't imagine four compiles on a
> single CPU...

it is not so bad with a co and without ntplonly
genlop -t glibc
 * sys-libs/glibc

     Sat Sep 24 07:51:46 2005 >>> sys-libs/glibc-2.3.5-r1
       merge time: 1 hour, 14 minutes and 49 seconds.

     Tue Oct  4 23:12:51 2005 >>> sys-libs/glibc-2.3.5-r1
       merge time: 1 hour, 18 minutes and 56 seconds.

     Fri Oct  7 04:43:40 2005 >>> sys-libs/glibc-2.3.5-r2
       merge time: 1 hour, 53 minutes and 50 seconds.

     Fri Oct 28 05:52:35 2005 >>> sys-libs/glibc-2.3.5-r3
       merge time: 1 hour, 36 minutes and 1 second.

-- 
gentoo-amd64@g.o mailing list


References:
Old topic comes round again: -Ox optimizations.
-- Duncan
Re: Old topic comes round again: -Ox optimizations.
-- Hemmann, Volker Armin
Re: Old topic comes round again: -Ox optimizations.
-- Duncan
Navigation:
Lists: gentoo-amd64: < Prev By Thread Next > < Prev By Date Next >
Previous by thread:
Re: Old topic comes round again: -Ox optimizations.
Next by thread:
printing from abiword: Error: ttftool: Incomplete TTF file
Previous by date:
Re: linux32 or chroot
Next by date:
Re: Get synaptics touchpad to work after initial installation


Updated Jun 17, 2009

Summary: Archive of the gentoo-amd64 mailing list.

Donate to support our development efforts.

Copyright 2001-2013 Gentoo Foundation, Inc. Questions, Comments? Contact us.