From: Andy Gay <andy@andynet.net>
To: Pete Zaitcev <zaitcev@redhat.com>
Cc: Andrew Morton <akpm@osdl.org>,
gregkh@suse.de, linux-kernel@vger.kernel.org,
linux-usb-devel@lists.sourceforge.net
Subject: Re: [PATCH] Airprime driver improvements to allow full speed EvDO transfers
Date: Fri, 30 Jun 2006 12:59:29 -0400 [thread overview]
Message-ID: <1151686769.3285.465.camel@tahini.andynet.net> (raw)
In-Reply-To: <20060630015251.e6a4e526.zaitcev@redhat.com>
On Fri, 2006-06-30 at 01:52 -0700, Pete Zaitcev wrote:
> The idea to allocate a URB for every little user write bothers me as
> well. It was a dirty code thrown together quickly by someone who could
> not be bothered to use a circular buffer and two URBs. It was fine
> for the visor.c, but the Airprime is a higher performance card, and it
> can be used in a home gateway with a low-power CPU. I'm not happy.
I agree completely. I was already planning to work on improving the
write path at some point.
The read path is more important though, these networks are asymmetric -
Sierra Wireless specifies max 2.4Mbps download vs 153Kbps upload for the
EM5625 and MC5720, presumably the other devices are similar. So this
patch was focused on getting the best read performance.
>
> -- Pete
next prev parent reply other threads:[~2006-06-30 16:59 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-30 5:48 Andy Gay
2006-06-30 7:10 ` Andrew Morton
2006-06-30 8:52 ` Pete Zaitcev
2006-06-30 16:59 ` Andy Gay [this message]
2006-06-30 10:51 ` Sergei Organov
2006-06-30 12:13 ` [linux-usb-devel] " Alan Cox
2006-06-30 12:02 ` Arjan van de Ven
2006-06-30 13:34 ` Alan Cox
2006-06-30 16:35 ` Andy Gay
2006-07-07 17:23 ` Sergei Organov
2006-07-07 20:07 ` Alan Cox
2006-07-10 10:36 ` Sergei Organov
2006-07-10 11:10 ` Alan Cox
2006-07-10 15:54 ` Sergei Organov
2006-07-10 17:31 ` Alan Cox
2006-07-10 17:24 ` Sergei Organov
2006-07-13 14:17 ` Sergei Organov
2006-07-13 15:40 ` Alan Cox
2006-07-13 18:20 ` Sergei Organov
2006-07-13 19:08 ` Greg KH
2006-07-14 10:13 ` Sergei Organov
2006-06-30 20:04 ` Roland Dreier
2006-06-30 20:13 ` Andy Gay
2006-07-02 18:48 ` Roland Dreier
2006-07-02 20:29 ` Andy Gay
2006-07-02 20:47 ` Roland Dreier
2006-07-03 7:00 ` Jeremy Fitzhardinge
2006-07-03 14:21 ` Andy Gay
2006-07-03 16:28 ` Jeremy Fitzhardinge
2006-07-03 17:00 ` Andy Gay
2006-07-03 17:00 ` Greg KH
2006-07-03 17:55 ` Andy Gay
2006-07-03 18:08 ` Jeremy Fitzhardinge
2006-07-03 18:16 ` Greg KH
2006-07-03 22:43 ` Andy Gay
2006-07-03 15:43 ` [linux-usb-devel] " Ken Brush
2006-07-03 16:19 ` Andy Gay
2006-07-11 18:31 ` Sergei Organov
2006-07-11 18:55 ` Andy Gay
2006-07-12 9:20 ` Sergei Organov
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1151686769.3285.465.camel@tahini.andynet.net \
--to=andy@andynet.net \
--cc=akpm@osdl.org \
--cc=gregkh@suse.de \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-usb-devel@lists.sourceforge.net \
--cc=zaitcev@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®