[THIN] Re: CPU - Explorer and Winlogon

Appologies if that's the case, all prior experience
with Norton has not been good for me with Citrix so
I've kinda steered away from it !

Mark

 --- Evan Mann <emann@xxxxxxxxxxxx> wrote: > 
> NAV Corporate 7.6 (part of Enterprise 8.0) for
> Servers (not the workstation
> version) works on Citrix properly now.  Corporate
> 7.5 did not.  I'm not sure
> if it's Citrix Certified however.
> 
> FWIW, I used Corporate 7.5 Server on my MF XP 1.0
> server without any
> problems, and now am using 7.6
> 
> -----Original Message-----
> From: Mark Lee [mailto:marklee15@xxxxxxxxx]
> Sent: Wednesday, July 31, 2002 9:35 AM
> To: thin@xxxxxxxxxxxxx
> Subject: [THIN] Re: CPU - Explorer and Winlogon 
> 
> 
> 
> Tony,
> 
> you're welcome.  I can only offer one piece of
> advice
> - if possible ditch Norton AV and opt for an
> alternate
> that's Citrix Certified as when I last checked
> Norton
> was certainly not Citrix Certified.  
> 
> I used to use Norton 4 and 5 on Citrix servers until
> v. recently but had to modify the installed version
> to
> stop it running NAVAPW32.EXE (AutoProtect) as this
> would run for each logged on user, therefore, using
> vital CPU cycles for no apparent reason - basically
> when it ran the server just died.  Also, a colleague
> recently tried installed in the same ver. of Norton
> you mention and gave up as it killed their test
> server
> :-(
> 
> We actually use Sophos right now and it's fine, no
> CPU
> hit's :-)  We use TScale too :-)))
> 
> Finally, if you mail me off list I have a solution
> (in
> Beta) to high CPU usage in Windows, might help you
> whilst you try to resolve the problem, this way
> you're
> current user's are not impacted too much....
> 
> Cheers
> 
> Mark
> 
> 
> 
> 
> --- Tony Brookus <tbrookus@xxxxxxxxxxx> wrote: > 
> Mark
> -   >does this happen to all of your servers ?
> > It definitely seems to
> > occur for all my published desktop servers.  I've
> > duplicated the high
> > processor usage (in varying degrees) on all my
> > servers that I've looked at. 
> > I'm not sure if the hanging or sluggishness is an
> > issue with all of them,
> > however. 
> > >does this only happen to specific clients on
> > specific
> > >servers ? Just the thin client users that connect
> > to a published desktop. 
> > >have you done any sort of S/W upgrade on the
> > servers ? Looking back through
> > my notes, I can't find anything that was made that
> > would have affected
> > everything, except for two things.  One was that I
> > upgraded the firmware and
> > client version on the NCD thin clients.  Since I
> > just managed to experience
> > the problem on a downgraded thin client (while
> > typing this email), that
> > wouldn't be the problem.  The other was that we
> > upgraded to Norton Antivirus
> > Corporate 7.61.  I'm now wondering if that could
> be
> > the cause.  I think I'll
> > uninstall that this evening off of one server and
> > test that out. 
> > >is the login script still running during this
> > period
> > >of High CPU usage ? Yes, but the high CPU
> continues
> > even when the login
> > script completes.  Here's what's happens (I can
> > describe it pretty well
> > sinceit's happening again on this client): User
> > powers on their client and
> > eventually gets sent to the login screen of one of
> > the servers.  Even this
> > causes a spike in CPU with Winlogon using about
> > 30-50%.  User logins in. 
> > Winlogon maxes out the CPU (seems to use all
> > available).  Context
> > switches/sec go from their average (right now
> > 12,000) to 60,000 with a spike
> > over 100,000.  Once explorer starts for the user,
> > that begins to take up CPU
> > (30-40%), though not as bad as the winlogon.  The
> > user could just sit at
> > their desktop and not move and their explorer.exe
> > will still be using about
> > 20% processor for about 20 seconds or so.  The
> hangs
> > for the users are felt
> > during the winlogon part and slightly during the
> > explorer.exe (depending on
> > how busy the server is at the time).   Yesterday I
> > was looking more at the
> > explorer process part, but after working on a thin
> > client this morning, I
> > think I'll re-examine the winlogon.  That seems to
> > be the kicker.  It will
> > just grab every bit of processor available.  
> Thanks
> > for the response, by
> > theway.   llater, Tony
> > 
> > 
> >
>
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