From: Robert Love <rml@tech9.net>
To: Jens Axboe <axboe@suse.de>
Cc: Andrew Morton <akpm@zip.com.au>, lkml <linux-kernel@vger.kernel.org>
Subject: Re: [CFT] Bus mastering support for IDE CDROM audio
Date: 27 Jan 2002 16:40:16 -0500 [thread overview]
Message-ID: <1012167617.1049.10.camel@phantasy> (raw)
In-Reply-To: <20020127222551.B7548@suse.de>
In-Reply-To: <3C5119E0.6E5C45B6@zip.com.au> <1012166472.812.7.camel@phantasy> <20020127222551.B7548@suse.de>
On Sun, 2002-01-27 at 16:25, Jens Axboe wrote:
> sr already uses DMA for all transfers, so no performance gain was to be
> expected there. problem is ide-cd using pio for all packet command data
> transfers currently (modulo fs read write requests, of course)
>
> not a whole lot of pio aic7xxx adapters out there :-)
Right. The patch touches the generic cdrom driver, however, so Andrew
asked for testing with SCSI readers. Thankfully it works; of course
performance didn't go up.
Robert Love
prev parent reply other threads:[~2002-01-27 21:35 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-01-25 8:40 [CFT] Bus mastering support for IDE CDROM audio Andrew Morton
2002-01-25 19:21 ` Kevin P. Fleming
2002-01-27 2:13 ` Dan Chen
2002-01-27 3:16 ` Andrew Morton
2002-01-27 6:41 ` Andrew Morton
2002-01-27 9:11 ` Kristian
2002-01-27 10:19 ` Kristian
2002-01-27 19:54 ` Ed Sweetman
2002-01-28 8:29 ` Andrew Morton
2002-01-28 9:51 ` benh
2002-01-28 9:51 ` Andrew Morton
2002-01-28 15:50 ` Ed Sweetman
2002-01-28 17:13 ` Kristian
2002-01-28 13:51 ` Kristian
2002-01-28 19:21 ` Kevin P. Fleming
2002-01-26 8:43 ` Dan Chen
2002-01-26 12:03 ` Kristian
2002-01-27 21:21 ` Robert Love
2002-01-27 21:25 ` Jens Axboe
2002-01-27 21:36 ` Andrew Morton
2002-01-27 21:40 ` Robert Love [this message]
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