[Samba] Profile loading/saving on gigabit network only runs atfast ethernet speeds! Help!

[Jonathan Bougher]

I Do think the local hard disk speed is cause *some* limitation, but since I
can upload & download the same and other files and directories to the server
at 4x the speed, I do not think that is the main limitation.

I am still perplexed by this issue, why is it that any sort of normal
upload/download data transfer from server to client or vice-versa via
network shares works at speeds of roughly 400,000 kb/s when a profile being
copied back and forth at login/logout runs at a much slower 50,000 kb/s?

Iv'e just been frustrated by this issue and I would really like to get to
the bottom of this, thank you all for your patience and continued support.

Jonathan

On Thu, Oct 16, 2008 at 9:47 AM, Andrew Masterson <
Andrew.Masterson at nuvistaenergy.com> wrote:

> It might be due to the way you are testing - local hard drives usually
> can't make use of gigabit networks for downloading because their write
> speeds are too slow.
>
> -Andrew
>
>
> -------------------------------------
> > On Behalf Of Jonathan Bougher
> > Sent: Wednesday, October 15, 2008 4:08 PM
> > To: Adam Williams
> > Cc: samba at lists.samba.org
> > Subject: Re: [Samba] Profile loading/saving on gigabit network only
> runs
> > atfast ethernet speeds! Help!
> >
> > Ok that idea sounds golden, I will try it out the first chance I get.
> This
> > is a big improvement over the way it is now, it's a little harder on
> > users,
> > but not much. I thank you very much!
> >
> > However, just because I am a curious kind of guy, I do not yet know
> > *why*such a slowdown occurs when saving a profile vs. just
> > uploading/downloading
> > to a share. Is this a result of the old profile having to be
> overwritten?
> > I
> > know I need to read up on this a little more but has anyone had direct
> > experience with this type of issue, or any ways to speed up that
> service
> > in
> > particular (or what could be slowing it down).
> >
> > Thank you all so much, you have already helped tremendously - please
> help
> > me
> > out just a little more to understand this better. :) Thanks!
> >
> > On Tue, Oct 14, 2008 at 2:39 PM, Adam Williams
> > <awilliam at mdah.state.ms.us>wrote:
> >
> > > page 211 of samba 3 by example.pdf has instructions on how to
> redirect
> > > folders using registry changes.  you can easily redirect my
> documents by
> > > right clicking on it and changing the target.  i don't save files to
> my
> > > desktop because that just results in a cluttered desktop and large
> > roaming
> > > profiles.  No I don't think VMWare will run much slower than it is
> now.
> > In
> > > testing on my Poweredge servers, desktop PCs, etc, it seems in my
> > experience
> > > that hard drives max out at reads/writes of 25 megabytes a second,
> and
> > even
> > > 100megabit transfers about 12 megabytes a second on a switched
> network.
> > I'd
> > > probably try a test, take a user, redirect my documents to a folder
> on
> > the
> > > server, put the VM in it, and run it, and see how it affects your
> > > performance, you may not notice anything different.  I ran Windows
> XP
> > and
> > > Fedora 8 on Microsoft Virtual PC in a test environment on my 100
> megabit
> > > notebook PC with the VMs stored on a shared drive on a file server
> and I
> > > didn't notice much of a difference as running an operating system
> > locally.
> > >
> > >
> > > Jonathan Bougher wrote:
> > >
> > >> The VM is being saved to the Desktop, within a folder (or multiple
> > folders
> > >> if the user puts it there)
> > >>
> > >> If I redirect My Docs, and the VM files are there - Then won't
> VMware
> > run
> > >> much more slowly trying to access this stuff across the network
> when
> > the
> > >> user wants to run the VM? Profile loading/saving would speed up,
> but
> > overall
> > >> performance would be impacted negatively I think
> > >>
> > >> Thanks for the reply, I will look into it further - do you have any
> > >>  thoughts about what I stated above?
> > >>
> > >>
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