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From: Alex Tomas <bzzz@tmi.comex.ru>
To: Andrew Morton <akpm@digeo.com>
Cc: Matthew Wilcox <willy@debian.org>,
	adilger@clusterfs.com, linux-kernel@vger.kernel.org,
	ext2-devel@lists.sourceforge.net
Subject: Re: [Ext2-devel] [PATCH] distributed counters for ext2 to avoid group scaning
Date: 17 Mar 2003 23:40:12 +0300	[thread overview]
Message-ID: <m3of49682b.fsf@lexa.home.net> (raw)
In-Reply-To: <20030317122357.41df48a9.akpm@digeo.com>


hi!

>>>>> Andrew Morton (AM) writes:

 AM> Which is why I'm waiting to see some profiles and benchmarks.
 AM> Judging from the last set of profiles, in which
 AM> ext2_count_free_blocks() was not present, this may not be
 AM> justified.

first of all, ext2_count_free_blocks() is used by orlov allocator
only which in turn is used to create dirs only. so, I do not think
dbench may show possible improvement. also, I understand it isn't
bottleneck absolutely, but I think it may reduce memory footprint.
Probably, we may use dcounters for huge fs only (i.e. make it
optional).

with best regards, Alex


  parent reply	other threads:[~2003-03-17 20:37 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-03-16 15:01 [PATCH] distributed counters for ext2 to avoid group scaning 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
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 [this message]
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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