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Date: Wed, 9 Aug 2006 11:48:13 +0200 From: Pavel Machek <pavel@...e.cz> To: Hans Reiser <reiser@...esys.com> Cc: David Masover <ninja@...phack.com>, "Horst H. von Brand" <vonbrand@....utfsm.cl>, Bernd Schubert <bernd-schubert@....de>, reiserfs-list@...esys.com, Jan-Benedict Glaw <jbglaw@...-owl.de>, Clay Barnes <clay.barnes@...il.com>, Rudy Zijlstra <rudy@...ons.demon.nl>, Adrian Ulrich <reiser4@...nkenlights.ch>, ipso@...ppymail.ca, lkml@...productions.com, jeff@...zik.org, tytso@....edu, linux-kernel@...r.kernel.org Subject: Re: the " 'official' point of view" expressed by kernelnewbies.org regarding reiser4 inclusion On Wed 2006-08-09 02:37:45, Hans Reiser wrote: > Pavel Machek wrote: > > > > > > >Yes, I'm afraid redundancy/checksums kill write speed, > > > they kill write speed to cache, but not to disk.... our compression > plugin is faster than the uncompressed plugin..... Yes, you can get clever. But your compression plugin also means that single bit error means whole block is lost, so there _is_ speed vs. stability-against-hw-problems. But you are right that compression will catch same class of errors checksums will, so that it is probably good thing w.r.t. stability. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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