Re: [Monotone-devel] slow update/status on NFS

[Benoît Dejean]

Le lundi 28 mai 2007 à 13:08 -0700, Justin Patrin a écrit :
> On 5/25/07, Benot Dejean <address@hidden> wrote:
> > Le jeudi 24 mai 2007  19:20 -0400, Stephen Leake a crit :
> > > Benot Dejean <address@hidden> writes:
> > >
> > > > Oh, and yes, it should and tries to, but on a network filesystem, cache
> > > > issues are big. I work in a big company, with a really huge intranet
> > > > (worldwide). The filer i use is 1000km away, so the RTT is ~15ms. There
> > > > are some NFS/CIFS/etc accelerators, but even with them, a stat call can
> > > > take up to 1ms. And of course, worst case is ~15ms.
> > >
> > > Wouldn't it be better to have all your files local, and use monotone
> > > to sync with a db on the remote file server?
> >
> > Because this is a filer.
> >
> 
> What exactly do you mean by a filer? I've never heard that term
> applied to computers and naturally assumed you meant a file server.

You know, a NetApp christmas tree, things like that ... hundreds of
disk. (google i feel lucky filer). These kind of hardware is dedicated.

> What is better about working on the (remote, slow) filer than working
> locally and syncing often?

I have no choice. I am a simple user. (And if i had the choice, i would
still use network filesystem). My work and user files are on network
filesystems: they are secured, backuped and available from everywhere.
Anyway, I have no local write access on my desktop.

I'm sorry you don't understand this, but i can't really give more
details. The network is slow compared to disk (by the way, this may not
be always true) but not too slow. But the filesystem usage is bloated.
And this painfully shows on network (maybe also on DVD-RAM or USB keys).

Monotone had a little issue on reiserfs, nobody ever considered
switching from reiserfs :)

So is any patch going to be applied ?

-- 
Benoît Dejean
GNOME http://www.gnomefr.org/
LibGTop http://directory.fsf.org/libgtop.html

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