Re: Large files and filesystem block size

Jan Kara (jack@suse.cz)
Fri, 9 Nov 2001 10:30:13 +0100


Hello,

> I'm setting up a server serving large >=1GB files. I spoke to this guy
> that just finished his PhD on the subject
> (http://ConfMan.unik.no/~paalh/index2.html) , and he said he'd managed to
> increase the throughput by using a 64kB block size on the files system.
> This testing was done on NetBSD (as far as I can remember).
>
> Does anyone know of a file system that supports large files, large
> filesystems and large block sizes?
Linux doesn't support larger block size than page size (ie. 4 KB on i386).

> Does any of you have any theories if his practice in using larger block
> sizes will have the same impact on performance in Linux as it had in BSD?
I think performance will improve but only for large files (but that's
probably what you want).

Honza

--
Jan Kara <jack@suse.cz>
SuSE CR Labs
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