Date: Thu, 29 May 2003 09:12:36 +0400 (MSD) From: Igor Sysoev <is@rambler-co.ru> To: Bill Fenner <fenner@research.att.com> Cc: arch@freebsd.org Subject: Re: sendfile(2) SF_NOPUSH flag proposal Message-ID: <Pine.BSF.4.21.0305290912190.51943-100000@is> In-Reply-To: <200305282010.h4SKAZh07220@windsor.research.att.com>
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On Wed, 28 May 2003, Bill Fenner wrote: > >1) use TF_NOPUSH to coalesce the header and the first file part > > or the last file part and the trailer as Matthew Dillon suggested; > Is this really necessary? What exactly ? The use of TF_NOPUSH or a coalescence ? If the former then it's a simple hackish solutiun without a modifyng writev(). > >2) use the same TF_NOPUSH to postpone the sending partial packet while > > a reading file page from the disk; > PRUS_MORETOCOME does this too, and is quite a bit less hacky. Yes, of course both flags do this. Igor Sysoev http://sysoev.ru/en/
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