From: Pat LaVarre <p.lavarre@ieee.org>
To: Pete Zaitcev <zaitcev@redhat.com>
Cc: usb-storage@lists.one-eyed-alien.net,
linux-kernel@vger.kernel.org, jgarzik@redhat.com
Subject: Re: [usb-storage] drivers/block/ub.c #6
Date: 27 Aug 2004 15:02:12 -0600 [thread overview]
Message-ID: <1093640531.8006.68.camel@patlinux.iomegacorp.com> (raw)
In-Reply-To: <20040730035120.30abd121@lembas.zaitcev.lan>
Pete Z:
> Date: 30 Jul 2004 04:51:20 -0600
> ...
> I wish this could be somehow limited to flash keys,
I see a 3X drop in thruput, ouch, when I substitute ub.ko for
usb-storage.ko.
Specifically I get 0.5 GB/min from ub.ko, as contrasted with 1.5 GB/min
from usb-storage.ko, in the outside 1 GiB of a particular disc, in three
or more consistent consecutive samples from each.
I knew how to patch to allow bytes/LBA != 512 only because of your
recent answers in [usb-storage]. I took my samples from
linux-2.6.9-rc1-bk2, modprobe'ing .ko built with and without
CONFIG_BLK_DEV_UB.
> I did not ask LANANA for a major.
> next ...
> add ioctls to burn CDs, and ...
Yes please.
Even DVD-RAM need the ioctl's to pass thru SCSI, for everything
vendor-specific that lies beyond generic read and write.
> dynamic ... udev ...
> ufi.c ... refactoring ...
Pat LaVarre
next prev parent reply other threads:[~2004-08-27 21:13 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-30 10:51 Pete Zaitcev
2004-08-27 21:02 ` Pat LaVarre [this message]
2004-08-27 22:32 ` [usb-storage] " Pat LaVarre
2004-08-28 3:57 ` Pete Zaitcev
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=1093640531.8006.68.camel@patlinux.iomegacorp.com \
--to=p.lavarre@ieee.org \
--cc=jgarzik@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=usb-storage@lists.one-eyed-alien.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
Powered by JetHome