Date: Mon, 12 Jul 1999 18:52:02 +0200 From: Poul-Henning Kamp <phk@critter.freebsd.dk> To: Matthew Dillon <dillon@apollo.backplane.com> Cc: Luoqi Chen <luoqi@watermarkgroup.com>, dfr@nlsystems.com, jeremyp@gsmx07.alcatel.com.au, freebsd-current@FreeBSD.ORG, mike@ducky.net Subject: Re: "objtrm" problem probably found (was Re: Stuck in "objtrm") Message-ID: <20136.931798322@critter.freebsd.dk> In-Reply-To: Your message of "Mon, 12 Jul 1999 09:47:11 PDT." <199907121647.JAA70249@apollo.backplane.com>
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> p.s. I'm pretty sure that the lock prefix costs nothing on a UP system, > and probably wouldn't be noticed on an SMP system either because the > write-allocation overhead is already pretty bad. But I haven't tested > it. it's actually quite expensive in terms of bus bandwidth because a lot of things have to be synchronized and stalled... -- Poul-Henning Kamp FreeBSD coreteam member phk@FreeBSD.ORG "Real hackers run -current on their laptop." FreeBSD -- It will take a long time before progress goes too far! To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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