From owner-freebsd-bugs Sat Feb 9 7:40: 6 2002 Delivered-To: freebsd-bugs@hub.freebsd.org Received: from freefall.freebsd.org (freefall.FreeBSD.org [216.136.204.21]) by hub.freebsd.org (Postfix) with ESMTP id 8CD1D37B420 for ; Sat, 9 Feb 2002 07:40:02 -0800 (PST) Received: (from gnats@localhost) by freefall.freebsd.org (8.11.6/8.11.6) id g19Fe2p76419; Sat, 9 Feb 2002 07:40:02 -0800 (PST) (envelope-from gnats) Date: Sat, 9 Feb 2002 07:40:02 -0800 (PST) Message-Id: <200202091540.g19Fe2p76419@freefall.freebsd.org> To: freebsd-bugs@FreeBSD.org Cc: From: Luigi Rizzo Subject: Re: kern/32338: Network to disk write performance low under ATA with DMA Reply-To: Luigi Rizzo Sender: owner-freebsd-bugs@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org The following reply was made to PR kern/32338; it has been noted by GNATS. From: Luigi Rizzo To: David S Madole Cc: wpaul@FreeBSD.org, freebsd-gnats-submit@FreeBSD.org Subject: Re: kern/32338: Network to disk write performance low under ATA with DMA Date: Sat, 9 Feb 2002 07:31:26 -0800 On Sat, Feb 09, 2002 at 05:55:07AM +0000, David S Madole wrote: > Luigi, > > Actually, in my case, it's the PCI latency that made all the yes, i am not denying that, it's just that i havent had a chance to exercise that part of the code. > I'm surprised you get a lot of overflows even on the slow > machine, since the card empties through DMA. I can see mbufs well, it's ring buffer overflow, not DMA overflow. But the code calls rxeoc in both cases... cheers luigi To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message