Date: Thu, 5 Apr 2007 11:02:31 -0400 From: Kris Kennaway <kris@obsecurity.org> To: scuba@centroin.com.br Cc: freebsd-questions@freebsd.org Subject: Re: unroll-loops - Is it always safe? Message-ID: <20070405150231.GB6128@xor.obsecurity.org> In-Reply-To: <20070405093721.N22331@trex.centroin.com.br> References: <20070405093721.N22331@trex.centroin.com.br>
next in thread | previous in thread | raw e-mail | index | archive | help
--GID0FwUMdk1T2AWN Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Apr 05, 2007 at 09:54:08AM -0300, scuba@centroin.com.br wrote: > Hi All, >=20 > Is it always safe to use "-funroll-loops" as a flag to=20 > /etc/make.conf ? Does it realy improve the compiled programs? No and usually not. > When should I avoid to use it? You should never use it unless you have measured an improvement on specific code. Kris --GID0FwUMdk1T2AWN Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (FreeBSD) iD8DBQFGFQ+HWry0BWjoQKURAnW3AKDIsBGMxKjtFR4olbT/0+C6uH2ByACdGI// J1Bna+9f+BicCnGgeHEQyWQ= =C2dl -----END PGP SIGNATURE----- --GID0FwUMdk1T2AWN--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20070405150231.GB6128>