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From: Nikita Danilov <Nikita@Namesys.COM>
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Date: Wed, 2 Oct 2002 10:39:48 +0400
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To: Paul P Komkoff Jr <i@stingr.net>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [STUPID TESTCASE] ext3 htree vs. reiserfs on 2.5.40-mm1
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Paul P Komkoff Jr writes:
 > This is the stupidiest testcase I've done but it worth seeing (maybe)
 > 
 > We create 300000 files named from 00000000 to 000493E0 in one
 > directory, then delete it in order.
 > 
 > Tests taken on ext3+htree and reiserfs. ext3 w/o htree hadn't
 > evaluated because it will take long long time ...
 > 
 > both filesystems was mounted with noatime,nodiratime and ext3 was
 > data=writeback to be somewhat fair ...
 > 
 > 	       	real 	      	user  		sys
 > reiserfs:
 > Creating: 	3m13.208s	0m4.412s	2m54.404s
 > Deleting:	4m41.250s	0m4.206s	4m17.926s
 > 
 > Ext3:
 > Creating:	4m9.331s	0m3.927s	2m21.757s
 > Deleting:	9m14.838s	0m3.446s	1m39.508s

Why user times are so different?

 > 
 > htree improved this a much but it still beaten by reiserfs. seems odd
 > to me - deleting taking twice time then creating ...
 > 
 > -- 
 > Paul P 'Stingray' Komkoff 'Greatest' Jr /// (icq)23200764 /// (http)stingr.net
 >   When you're invisible, the only one really watching you is you (my keychain)

Nikita.

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