Re: [rfc] Near-constant time directory index for Ext2

From: H. Peter Anvin (
Date: Wed Feb 21 2001 - 21:41:24 EST

Andreas Dilger wrote:
> Basically (IMHO) we will not really get any noticable benefit with 1 level
> index blocks for a 1k filesystem - my estimates at least are that the break
> even point is about 5k files. We _should_ be OK with 780k files in a single
> directory for a while.

I've had a news server with 2000000 files in one directory. Such a
filesystem is likely to use small blocks, too, because each file is
generally small.

This is an important connection: filesystems which have lots and lots of
small files will have large directories and small block sizes.


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This archive was generated by hypermail 2b29 : Fri Feb 23 2001 - 21:00:26 EST