Bruttaly sluggish Eclipse performance in remote X

[Manuel Wolfshant]

On 01/08/2008 12:57 AM, Dimi Paun wrote:
> Folks,
>
> I am running Fedora 8 on 3 boxes, all connected via Gb Ethernet.
> On two of the boxes (Intel Core 2 Quad @ 2.4GHz, 4 GB RAM) I've
> enabled XDMCP and am logging in from the 3 via remote X. It has
> been a rough experience:
>   * the default GDM screen does not have an option to invoke the
>     XDMCP chooser, despite the working in gdmsetup. This caused
>     great confusion until I figured that I needed to switch to
>     Happy Gnome login theme.
>   * performance is a bit sluggish, but bearable. However, I have
>     used in University (back in 97-98) old Sun boxes that were
>     doing the same over a much slower network, I was expecting
>     a lot more now, given all the hardware I've thrown at it.
>
> However, the deal break has been Eclipse. I need to run this app,
> but doing so is almost impossible. Every time it opens _any_
> dialog (find, etc.) it locks hard for 10-20seconds at a time.
> Same thing happens when you dismiss the dialog. Of course, I can
> see no sign of CPU or network usage. 
>
> WTH is going on?!? The app (Eclipse) works very well locally, why
> would it behave in such a fashion on the remove X? The delays are
> so big that I can't think it's doing anything, but rather that it's
> blocked somewhere waiting for a timeout of sorts.
>
> Any help figuring this out would be much appreciated. I think this
> is a rather nasty problem/regression, remote X used to work just
> fine in the past...
>
>   
maybe something along  "strace -f  -e <suitable calls here>" would help ?