Gentoo Archives: gentoo-user

From: Neil Bothwick <neil@××××××××××.uk>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] CFLAGS "...-O3 -pipe" vs "...O2 <no pipe>"
Date: Mon, 09 Apr 2007 08:34:09
Message-Id: 20070409092841.5d075855@krikkit.digimed.co.uk
In Reply to: Re: [gentoo-user] CFLAGS "...-O3 -pipe" vs "...O2 " by Andrey Gerasimenko
1 Hello Andrey Gerasimenko,
2
3 > Ideally you should measure compile times for large projects like Open
4 > Office and find out what works best on your system. I would start with
5 > 1 thread -O2 and -pipe.
6
7 That would be an incredible waste of time because the OOo build replaces
8 any -O? CFLAG with -O2. If you want to test this, use a more
9 representative ebuild, preferably for a package you can time with a watch
10 rather than a calendar.
11
12
13 --
14 Neil Bothwick
15
16 Accept that some days you're the pigeon, and some days you're the statue.

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