Date: Tue, 05 Mar 2013 08:45:08 +0000 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: Don Lewis <truckman@FreeBSD.org> Cc: kostikbel@gmail.com, deeptech71@gmail.com, freebsd-current@FreeBSD.org, peter@rulingia.com, ian@FreeBSD.org Subject: Re: access to hard drives is "blocked" by writes to a flash drive Message-ID: <65342.1362473108@critter.freebsd.dk> In-Reply-To: <201303050840.r258egAG012697@gw.catspoiler.org> References: <201303050840.r258egAG012697@gw.catspoiler.org>
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In message <201303050840.r258egAG012697@gw.catspoiler.org>, Don Lewis writes: >For composite devices such as mirrors, using the first underlying device >is probably a reasonable choice. For more complicated cases, or to >override the default, the syncer thread could be specified as a mount >option. I doubt that will be any better than what we have today. I think it is a much better idea to have the syncer monitor bio write latency and adjust accordingly. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.
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