Re: [fuse-devel] Is NFS 3 times faster compare to SSHFS?

[Lorinc H. <lor...@gm...>]

Hi Phil,

1, actually I tried the caching also, I'm not sure I did it right:
-o kernel_cache,cache=yes,cache_timeout=300,cache_stat_timeout=300,cache_dir_timeout=300
-o auto_cache,cache=yes,cache_timeout=300,cache_stat_timeout=300,cache_dir_timeout=300
With auto_cache I had 10% performance improvement, but it didn't
compensate the 3 times difference. However the significant difference
comes from the caching, but the original load is also slower.

2, I love the concept of SSHFS, but you are right may be I should try
stunnel, ssh tunnel and openVPN also.

Regards,
Lorinc

On 3/6/07, Phil Snowberger <psn...@cs...> wrote:
> On Tue, Mar 06, 2007 at 10:15:26AM -0600, Lorinc Hever wrote:
> > This application reads about 300 files first to collect some
> > orientation information and after rereads the files to build a 3D
> > model from the pixel data. Each file is about 512KB.
>
1, I guess there's a reason you don't cache the results of the first read
> (e.g. memory constraints)?
>
> > I measured the read time with NFS and SSHFS and I just found NFS is  3
> > times faster :( We would really prefer to use SSHFS for security
> > reasons, but this performance loss is too much.
>
2, Not to discourage the general use of FUSE, but have you tried NFS v4
> (which supports NFS over TCP, I believe) over SSL (with e.g. stunnel)?
>
> --Phil
>
> --
> Phil Snowberger -- psn...@cs...
> Department of Computer Science and Engineering
> University of Notre Dame
>
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