Date: Fri, 19 Nov 1999 11:42:55 -0800 (PST) From: Alfred Perlstein <bright@wintelcom.net> To: Julian Elischer <julian@whistle.com> Cc: Bruce Evans <bde@zeta.org.au>, Matthew Dillon <dillon@apollo.backplane.com>, Charles Randall <crandall@matchlogic.com>, freebsd-smp@FreeBSD.ORG Subject: Re: RE: Big Giant Lock progress? Message-ID: <Pine.BSF.4.05.9911191141110.12797-100000@fw.wintelcom.net> In-Reply-To: <Pine.BSF.4.10.9911191107460.3072-100000@current1.whistle.com>
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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
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