From: Arnd Bergmann <arnd@arndb.de>
To: Per Forlin <per.forlin@linaro.org>
Cc: linux-mm@kvack.org, linux-mmc@vger.kernel.org,
linaro-kernel@lists.linaro.org
Subject: Re: mmc blkqueue is empty even if there are pending reads in do_generic_file_read()
Date: Wed, 4 May 2011 15:01:45 +0200 [thread overview]
Message-ID: <201105041501.45796.arnd@arndb.de> (raw)
In-Reply-To: <BANLkTinJxkauY+WUnJet+T5QM4_ROiKzGQ@mail.gmail.com>
On Tuesday 03 May 2011, Per Forlin wrote:
> > submitting small 512 byte read requests is a real problem when the
> > underlying page size is 16 KB. If your interpretation is right,
> > we should probably find a way to make it read larger chunks
> > on flash media.
> Sorry a typo. I missed out a "k" :)
> It reads 512k until 1M.
Ok, much better then.
Arnd
WARNING: multiple messages have this Message-ID (diff)
From: Arnd Bergmann <arnd@arndb.de>
To: Per Forlin <per.forlin@linaro.org>
Cc: linux-mm@kvack.org, linux-mmc@vger.kernel.org,
linaro-kernel@lists.linaro.org
Subject: Re: mmc blkqueue is empty even if there are pending reads in do_generic_file_read()
Date: Wed, 4 May 2011 15:01:45 +0200 [thread overview]
Message-ID: <201105041501.45796.arnd@arndb.de> (raw)
In-Reply-To: <BANLkTinJxkauY+WUnJet+T5QM4_ROiKzGQ@mail.gmail.com>
On Tuesday 03 May 2011, Per Forlin wrote:
> > submitting small 512 byte read requests is a real problem when the
> > underlying page size is 16 KB. If your interpretation is right,
> > we should probably find a way to make it read larger chunks
> > on flash media.
> Sorry a typo. I missed out a "k" :)
> It reads 512k until 1M.
Ok, much better then.
Arnd
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2011-05-04 13:01 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-28 18:39 mmc blkqueue is empty even if there are pending reads in do_generic_file_read() Per Forlin
2011-05-03 13:16 ` Arnd Bergmann
2011-05-03 13:16 ` Arnd Bergmann
2011-05-03 18:54 ` Per Forlin
2011-05-03 18:54 ` Per Forlin
2011-05-03 20:02 ` Arnd Bergmann
2011-05-03 20:02 ` Arnd Bergmann
2011-05-03 20:11 ` Per Forlin
2011-05-04 13:01 ` Arnd Bergmann [this message]
2011-05-04 13:01 ` Arnd Bergmann
2011-05-04 19:13 ` Per Forlin
2011-05-07 10:45 ` Per Forlin
2011-05-07 10:45 ` Per Forlin
2011-05-08 15:09 ` Arnd Bergmann
2011-05-08 15:09 ` Arnd Bergmann
2011-05-08 16:23 ` Per Forlin
2011-05-08 16:23 ` Per Forlin
-- strict thread matches above, loose matches on Subject: below --
2011-04-28 18:30 Per Forlin
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=201105041501.45796.arnd@arndb.de \
--to=arnd@arndb.de \
--cc=linaro-kernel@lists.linaro.org \
--cc=linux-mm@kvack.org \
--cc=linux-mmc@vger.kernel.org \
--cc=per.forlin@linaro.org \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.