Re: Porting GNOME to Wayland NFS performance in GNOME 3

2013-03-19 Thread Olav Vitters
On Tue, Mar 19, 2013 at 12:48:40AM +0100, stefan skoglund(agj) wrote:
 The RedHat thing is a really longlived bug in redhats bugzilla about
 gvfs metadata induced overload of NFS servers. That bug is rather bad
 and i think that if it isn't resolved it will make GNOME3 impossible to
 run in NFS-environments.

Could you please stop using vague phrases like 'RedHat thing'. I have no
idea what you're talking about. Either be specific, or just stop. It
seems you're referring to GNOME, which is not a 'RedHat thing'. But
actually I have no clue at all what you're suggesting with that. I am
pretty sure that you're wrong though.

-- 
Regards,
Olav
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Re: Porting GNOME to Wayland NFS performance in GNOME 3

2013-03-18 Thread Sriram Ramkrishna
We have a gnome-integration list dedicated to integrating GNOME into
environments.  That would be a great place to discuss and figure it out.
I'd like to see if we can make GNOME better in environments like yours.

Login performance is slow even without NFS.  Boot up performance to GDM
seems to work pretty good. But after that, it has sucked ass.

I refer you to this;
https://mail.gnome.org/archives/gnome-shell-list/2012-May/msg00089.html

on trying to find some real values on debugging the slow start up.  I fear
though that is out of topic for this mailing list.  So follow ups to
gnome-integration would be appreciated.

sri



On Mon, Mar 18, 2013 at 4:48 PM, stefan skoglund(agj) 
stefan.skogl...@agj.net wrote:

 mån 2013-03-18 klockan 09:10 -0700 skrev Sriram Ramkrishna:
 

 On Mon, Mar 18, 2013 at 7:58 AM, stefan skoglund(agj)
 stefan.skogl...@agj.net wrote:
  fre 2013-03-15 klockan 14:32 -0400 skrev Matthias Clasen:
 
 
  I dont think Redhat wants to have the same type of
  conversation they had
  with an client about GVFS bad behaviour when running over NFS
  if an
  wayland compositor is sensitive to the same type of race
  condition as
  gvfsd.
 
 
 
  In general, using NFS is a bad idea for a desktop in any case.  As you
  say there is any number of conditions due to locking that could cause
  race conditions.
 
 
  OR is the gnome community of the belief that NFS-accessed home
  directories is obsolete ?
  The race condition in gvfsd can be triggered in the use case
  of a single
  user desktop on a single machine but said machine needs to be
  heavily
  loaded.
 
 
 
  Speaking of someone who has been in a very large enterprise
  environment where our home directories were all NFS mounted, we never
  ran into these issues.  Why?  Because we all ran fvwm and not a full
  blown desktop OS.
 

 I have a university lab setup with gnome 3.6 desktop environment in
 debian wheezy and Kerberized NFS-access to the home directory (the
 server is a Nexenta Appliance.) It is enough to say that login
 performance is abysmal. I think this steems from the heavy usage of
 dconf at login-time (at least 1 minute from login in gdm to a working
 desktop.) This is on 4 year old HP AMD64 hardware and intel i745 (?)
 hardware.

 I occasionally also have a bit of trouble with Pulseaudio's .pulse
 directory in this environment.

 A pristine KDE in the same setup has very nice login performance so do
 enlightenment (of course.)

 The RedHat thing is a really longlived bug in redhats bugzilla about
 gvfs metadata induced overload of NFS servers. That bug is rather bad
 and i think that if it isn't resolved it will make GNOME3 impossible to
 run in NFS-environments.
 I hope that Weston (for example) doesn't create a situation like that
 but i'm pessimistic.


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Re: Porting GNOME to Wayland NFS performance in GNOME 3

2013-03-18 Thread stefan skoglund(agj)
mån 2013-03-18 klockan 09:10 -0700 skrev Sriram Ramkrishna:


On Mon, Mar 18, 2013 at 7:58 AM, stefan skoglund(agj)
stefan.skogl...@agj.net wrote:
 fre 2013-03-15 klockan 14:32 -0400 skrev Matthias Clasen:
 
 
 I dont think Redhat wants to have the same type of
 conversation they had
 with an client about GVFS bad behaviour when running over NFS
 if an
 wayland compositor is sensitive to the same type of race
 condition as
 gvfsd.
 
 
 
 In general, using NFS is a bad idea for a desktop in any case.  As you
 say there is any number of conditions due to locking that could cause
 race conditions.
  
 
 OR is the gnome community of the belief that NFS-accessed home
 directories is obsolete ?
 The race condition in gvfsd can be triggered in the use case
 of a single
 user desktop on a single machine but said machine needs to be
 heavily
 loaded.
 
 
 
 Speaking of someone who has been in a very large enterprise
 environment where our home directories were all NFS mounted, we never
 ran into these issues.  Why?  Because we all ran fvwm and not a full
 blown desktop OS.
 

I have a university lab setup with gnome 3.6 desktop environment in
debian wheezy and Kerberized NFS-access to the home directory (the
server is a Nexenta Appliance.) It is enough to say that login
performance is abysmal. I think this steems from the heavy usage of
dconf at login-time (at least 1 minute from login in gdm to a working
desktop.) This is on 4 year old HP AMD64 hardware and intel i745 (?)
hardware.

I occasionally also have a bit of trouble with Pulseaudio's .pulse
directory in this environment.

A pristine KDE in the same setup has very nice login performance so do
enlightenment (of course.)

The RedHat thing is a really longlived bug in redhats bugzilla about
gvfs metadata induced overload of NFS servers. That bug is rather bad
and i think that if it isn't resolved it will make GNOME3 impossible to
run in NFS-environments.
I hope that Weston (for example) doesn't create a situation like that
but i'm pessimistic.

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