From owner-freebsd-smp Fri Nov 19 11:16:44 1999 Delivered-To: freebsd-smp@freebsd.org Received: from fw.wintelcom.net (ns1.wintelcom.net [209.1.153.20]) by hub.freebsd.org (Postfix) with ESMTP id 28F7B14CE0 for ; Fri, 19 Nov 1999 11:16:41 -0800 (PST) (envelope-from bright@wintelcom.net) Received: from localhost (bright@localhost) by fw.wintelcom.net (8.9.3/8.9.3) with ESMTP id LAA25231; Fri, 19 Nov 1999 11:42:55 -0800 (PST) Date: Fri, 19 Nov 1999 11:42:55 -0800 (PST) From: Alfred Perlstein To: Julian Elischer Cc: Bruce Evans , Matthew Dillon , Charles Randall , freebsd-smp@FreeBSD.ORG Subject: Re: RE: Big Giant Lock progress? In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-smp@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Fri, 19 Nov 1999, Julian Elischer wrote: > On Sat, 20 Nov 1999, Bruce Evans wrote: > > > > :I wasn't around when this was attempted, did the code only > > > :touch the BGL when the amount to copy was greater than let's > > > :say 2k? Or was the bgl toggled on every uiomove? > > > > > > BDE tried his hand at this and spent a few minutes working > > > up a simple patch that essentially turned off the bgl > > > during the uiomove and then turned it back on again. I > > > > It wasn't me. ISTR luoqi working on this. > > > > it was john dyson > I'm still wondering about my question though, was the lock selectively removed only for large transfers? Or for each and every transfer? I'm just trying to laz^H^H^H^H avoid duplicate work. :) -Alfred To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message