Evan,
I have never seen high virtual memeory usage be the cause of
"latency-like" symptoms like laggy typing.
You should monitor the latency of your WAN connection (ICA Performance
counter) en you should do a realtime measurement of your WAN connection.
If it ever spikes to 10 Mbit then this could be your problem.
Regards,
Michel Roth
www.thincomputing.net
On 1/3/07, Evan Mann <emann@xxxxxxxxxxxxxxxxxxxxx> wrote:
>
> Piggy backing onto the virtual memory usage. I have very high virtual
> memory usage, even though I have 1 to 2 gigs of physical memory free. I
> also have plenty of idle CPU but I have heavy complaints of a slow user
> experience, such as Outlook keystrokes not appearing as they are typed.
>
> I have plenty of bandwidth (10mbits upstream with only 3mbps used), and
> the users complaining have plenty of up/down bandwidth available. Could
> high virtual memory and paging cause this type of performance problems, or
> would it be unrelated?
>
> ------------------------------
> *From:* thin-bounce@xxxxxxxxxxxxx [mailto: thin-bounce@xxxxxxxxxxxxx] *On
> Behalf Of *Rick Mack
> *Sent:* Wednesday, January 03, 2007 6:56 AM
> *To:* thin@xxxxxxxxxxxxx
> *Subject:* [THIN] Re: Controlling Virtual Memory Usage
>
>
> Hi Angela,
>
> Sounds like a Java app :-(
>
> Seriously, DLL remapping (memory optimization) probably won't give you a
> lot of value in your scenario, but it'd be worth trying. Sure there's the
> risk it will break something but it's dead easy to turn off without
> rebooting to check. And there's enough tweaking possible to have memory
> optimization and everything working as well.
>
> However a product like Appsense performance manager that also does
> memory working set trimming of backgrounded and idle processes will probably
> work much better in your scenario. Try the eval version, or better yet get
> your reseller to install an eval version and see how it goes. It's not cheap
> but it's also a lot less expensive than more servers.
>
> Considering that paging activity is likely to be the bottleneck
> regardless of the size of the pagfile(s), I'd suggest you stick with the
> configuration you've got and try memory optimization and Appsense first.
> It's possible to have multiple page files on separate partitions or even the
> same partition but it'd probably make things worse for you rather than
> better.
>
> regards,
>
> Rick
>
> Ulrich Mack
> Commander Australia
>
>
> On 1/3/07, Angela Smith <angela_smith9@xxxxxxxxxxx> wrote:
> >
> > Hi
> >
> > Almost all my Windows 2003 STD / Presentation Server 4 servers are
> > running
> > out of Swap space. Hardware config is:
> >
> > Dual 3.6Ghz
> > 4Gb RAM
> >
> > Swap size is 4095 - 4095 and it resides on the C: Drive. Main process
> > which
> > is using most of the Swap is Internet Explorer. Most of our Published
> > apps
> > are browser based so I have numerous IEXPLORE.EXE processes eating all
> > the
> > swap. Alot of the IEXPLORE.EXE processes use between 150Mb - 300Mb of
> > VM.
> > Is there any way I can tweak the memory usage for IE to minimise the
> > amount
> > of Swap being used?
> >
> > We have not enabled memory optimization in Citrix farm properties as I
> > read
> > it breaks certain applications? Is this the case? Will enabling this
> > assist
> > in this issue?
> >
> > I was going to purchase extra servers to lighten the load but most
> > other
> > resource indicators are OK. I would prefer to tweak existing servers
> > if
> > possible. We have between 80 - 100 sessions per server (40 - 50 users
> > per
> > box on average)
> >
> > Any suggestions appreciated
> >
> > Thanks
> > Angela
> >
> >
