Date: Fri, 30 May 1997 14:14:23 +0100 (BST) From: Doug Rabson <dfr@nlsystems.com> To: Bruce Evans <bde@zeta.org.au> Cc: current@freebsd.org Subject: Re: disk cache challenged by small block sizes Message-ID: <Pine.BSF.3.95q.970530141233.390F-100000@herring.nlsystems.com> In-Reply-To: <199705301242.WAA07183@godzilla.zeta.org.au>
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On Fri, 30 May 1997, Bruce Evans wrote: > >This version fixes a bug (passing an offset instead of a size to > >vm_page_set_invalid) which was probably the cause of the trap, should work > >properly for large files (I was using the wrong offset type) and possibly > >has a more acceptable style(9). > > It seems to fix all the speed problems (except ufs is still slower with > a larger fs blocksize) and the block leak in ex2tfs. If you roll vfs_bio.c back to rev 1.115, does it affect the speed of ufs with 8k blocksize? I am not sure whether my changes to vfs_bio would affect that. -- Doug Rabson Mail: dfr@nlsystems.com Nonlinear Systems Ltd. Phone: +44 181 951 1891 Fax: +44 181 381 1039
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