From mboxrd@z Thu Jan 1 00:00:00 1970 From: Roman Mamedov Subject: Re: How to boost performance Date: Fri, 18 Jun 2010 02:02:20 +0600 Message-ID: <20100618020220.161c54b2@natsu> References: <20100617100109.32a20ffa@natsu> <20100617221300.3e30afe0@natsu> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=PGP-SHA1; boundary="Sig_/R=RvtIdunUqnMY_=+7eo_mK"; protocol="application/pgp-signature" Return-path: In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: aragonx@dcsnow.com Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids --Sig_/R=RvtIdunUqnMY_=+7eo_mK Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Thu, 17 Jun 2010 15:46:05 -0400 aragonx@dcsnow.com wrote: > While I would agree with you if the performance was the same for reads as > it was writes, that is not the case here. Reads are a massively faster operation on RAID5 than writes, in my experien= ce an array easily reads at close to the theoretical limit, i.e. the speed of = its slowest member multiplied by the member count minus one. --=20 With respect, Roman --Sig_/R=RvtIdunUqnMY_=+7eo_mK Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iEYEARECAAYFAkwaf00ACgkQTLKSvz+PZwimtACeNRNX4b5u1LY4YGinFnBxV3/J E/oAnAkEWrjlPD8zfEtX6HMrvCQ9+UZU =TZLn -----END PGP SIGNATURE----- --Sig_/R=RvtIdunUqnMY_=+7eo_mK--