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/