Re: batched write

From: Akshat Aranya
Date: Mon Jun 19 2006 - 13:51:05 EST


On 6/19/06, Miklos Szeredi <miklos@xxxxxxxxxx> wrote:
> I would think that batched write is pretty essential then to FUSE
> performance.

Well, yes essential if the this is the bottleneck in write throughput,
which is most often not the case, but sometimes it is.


I can vouch for this. I did some experiments with an example FUSE
filesystem that discards the data in userspace. Exporting such a
filesystem over NFS gives us 80 MB/s writes when FUSE is modified to
write with 32K block sizes. With the standard FUSE (4K writes), we
get closer to 50 MB/s.

Miklos


-Akshat
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