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