From: Alex Tomas <bzzz@tmi.comex.ru>
To: Matthew Wilcox <willy@debian.org>
Cc: Andreas Dilger <adilger@clusterfs.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
ext2-devel@lists.sourceforge.net, Andrew Morton <akpm@digeo.com>
Subject: Re: [Ext2-devel] [PATCH] distributed counters for ext2 to avoid group scaning
Date: 17 Mar 2003 18:09:54 +0300 [thread overview]
Message-ID: <m3ptoqjagt.fsf@lexa.home.net> (raw)
In-Reply-To: <20030317151108.GC28607@parcelfarce.linux.theplanet.co.uk>
>>>>> Matthew Wilcox (MW) writes:
MW> And then we have 3 of these (an additional 3k..). Per
MW> blockgroup. My 4GB / has 30 blockgroups; my 30GB /home has 232.
MW> So that's a little under 8 per GB. My _laptop_ has a 40GB drive,
MW> so that's on the order of 320 blockgroups -- almost an additional
MW> megabyte of ram consumed for these counters.
no-no!
_one_ dcounter to maintain number of free blocks _per_ fs.
_one_ dcounter to maintain number of inode blocks _per_ fs.
_one_ dcounter to maintain number of dirs _per_ fs.
3 dcounter per fs. no more.
next prev parent reply other threads:[~2003-03-17 15:07 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-16 15:01 Alex Tomas
2003-03-16 17:44 ` [Ext2-devel] " Andreas Dilger
2003-03-16 21:55 ` Alex Tomas
2003-03-17 15:11 ` Matthew Wilcox
2003-03-17 15:09 ` Alex Tomas [this message]
2003-03-17 15:27 ` Matthew Wilcox
2003-03-17 15:25 ` Alex Tomas
2003-03-17 20:23 ` Andrew Morton
2003-03-17 20:27 ` Matthew Wilcox
2003-03-17 20:40 ` Alex Tomas
2003-03-17 9:37 ` William Lee Irwin III
2003-03-17 9:48 ` William Lee Irwin III
2003-03-17 10:41 ` Alex Tomas
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