Date: Mon, 10 Mar 2003 11:56:32 +0200 From: Sheldon Hearn <sheldonh@starjuice.net> To: Poul-Henning Kamp <phk@phk.freebsd.dk> Cc: Nate Lawson <nate@root.org>, cvs-src@FreeBSD.org, src-committers@FreeBSD.org Subject: Re: cvs commit: src/sys/sys devicestat.h Message-ID: <20030310095632.GB12316@starjuice.net> In-Reply-To: <78207.1047196679@critter.freebsd.dk> References: <Pine.BSF.4.21.0303082347200.90870-100000@root.org> <78207.1047196679@critter.freebsd.dk>
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On (2003/03/09 08:57), Poul-Henning Kamp wrote: > >How about a mtx covering the structure and a read from the device returns > >the structure under lock? > > The goal is to avoid locking in the kernel and put the overhead in > userland. Remember, most of the time nobody cares about the statistics > so they should be cheap. Amen! Ciao, Sheldon. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-src" in the body of the message
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