Date: Wed, 25 Sep 2002 13:00:35 -0700 (PDT) From: Doug Ambrisko <ambrisko@ambrisko.com> To: Luigi Rizzo <rizzo@icir.org> Cc: Doug Ambrisko <ambrisko@ambrisko.com>, Prafulla Deuskar <pdeuskar@FreeBSD.ORG>, freebsd-net@FreeBSD.ORG Subject: Re: Fwd: mbuf chain Message-ID: <200209252000.g8PK0Z610725@ambrisko.com> In-Reply-To: <20020925124810.B50200@iguana.icir.org>
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Luigi Rizzo writes: | On Wed, Sep 25, 2002 at 12:39:45PM -0700, Doug Ambrisko wrote: | ... | > Various drivers have code to deal with this when the structure | > it is putting the frags into runs out :-( See a recent bug fix to | > the ste(4) gleaned from the fxp(4). This type of problem is probably | > lurking in other drivers. Unfortunately the ste(4) driver siliently | | which suggests that we should definitely try to modify sbappend() | and/or possibly sbcompress to reduce the fragment count to reasonably | small values even in presence of very small writes. Sounds good to me. BTW a simple test is to do a "dd" of small writes over rsh/ssh. Doug A. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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