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RE:filesystem considerations
Thanks Howard.
________________________________________
De : Howard Chu [hyc@symas.com]
Envoyé : jeudi 23 octobre 2014 20:07
À : Julien Huon; openldap-technical@openldap.org
Objet : Re: filesystem considerations
Julien Huon wrote:
> Hello,
>
> I read a long time ago theses very interesting benchmarks :
> http://symas.com/mdb/microbench/july/.
>
> It seams that ext2 is the fastest filesystem for asynchronous writes.
>
> Do you think an ext4 filesystem without journalisation but with extents could
> be faster ?
For sequential writes, maybe. (But in that case, JFS with extents is still
faster.) For random, probably not.
>
> A LMBD database is a big flat file isn’t it ?
Yes.
> Extents are very interesting
> with that kind of files, aren’t they ?
For sequential access.
> Did someone try it ?
>
> Regards
>
--
-- Howard Chu
CTO, Symas Corp. http://www.symas.com
Director, Highland Sun http://highlandsun.com/hyc/
Chief Architect, OpenLDAP http://www.openldap.org/project/