From: Alex Tomas <alex@clusterfs.com>
To: Badari Pulavarty <pbadari@us.ibm.com>
Cc: suparna@in.ibm.com, ext2-devel@lists.sourceforge.net,
linux-fsdevel@vger.kernel.org, alex@clusterfs.com
Subject: Re: [Ext2-devel] Reviewing ext3 improvement patches (delalloc, mballoc, extents)
Date: Fri, 4 Mar 2005 14:30:36 +0300 [thread overview]
Message-ID: <20050304143036.1da01187.alex@clusterfs.com> (raw)
In-Reply-To: <1109898734.4961.11.camel@dyn318077bld.beaverton.ibm.com>
On 03 Mar 2005 17:12:14 -0800
Badari Pulavarty <pbadari@us.ibm.com> wrote:
> Just doing delayed allocation without multiblock allocation
> (with the current layout) is not really a useful thing, IMHO.
> We will benifit few cases, but in general - we moved the
> block allocation overhead from prepare write to writepages/writepage
> time. There is a little benifit of not doing journaling twice etc..
> but I don't think it would be enough to justify the effort.
> Isn't it ?
one more goodness - if file gets truncated soon, no allocation is needed at all
> One more thing, we need to keep in mind is - we need to make sure
> that "ordered" mode also improved - since all our testcode
> focuses on "writeback" mode and the default mode is "ordered" :(
working on that.
thanks, Alex
next prev parent reply other threads:[~2005-03-04 11:32 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-03 8:33 Reviewing ext3 improvement patches (delalloc, mballoc, extents) Suparna Bhattacharya
2005-03-03 9:40 ` Andreas Dilger
2005-03-03 22:10 ` Theodore Ts'o
2005-03-03 22:30 ` Alex Tomas
2005-03-04 11:13 ` Suparna Bhattacharya
2005-03-04 12:29 ` Alex Tomas
2005-03-04 18:25 ` [Ext2-devel] " Andreas Dilger
2005-03-04 1:12 ` [Ext2-devel] " Badari Pulavarty
2005-03-04 1:46 ` Mingming Cao
2005-03-04 3:26 ` Suparna Bhattacharya
2005-03-14 8:36 ` Werner Almesberger
2005-03-14 9:04 ` Suparna Bhattacharya
2005-03-14 15:02 ` Werner Almesberger
2005-03-14 15:43 ` Alex Tomas
2005-03-14 16:37 ` [Ext2-devel] " Werner Almesberger
2005-03-14 17:13 ` Alex Tomas
2005-03-15 0:28 ` Werner Almesberger
2005-03-14 22:23 ` Bryan Henderson
2005-03-15 0:42 ` Werner Almesberger
2005-03-15 21:59 ` Bryan Henderson
2005-03-04 11:30 ` Alex Tomas [this message]
2005-03-04 15:02 ` [Ext2-devel] " Alex Tomas
2005-03-13 14:41 ` Delayed alloc for ordered-mode Suparna Bhattacharya
2005-03-13 19:32 ` Badari Pulavarty
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=20050304143036.1da01187.alex@clusterfs.com \
--to=alex@clusterfs.com \
--cc=ext2-devel@lists.sourceforge.net \
--cc=linux-fsdevel@vger.kernel.org \
--cc=pbadari@us.ibm.com \
--cc=suparna@in.ibm.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;
as well as URLs for NNTP newsgroup(s).