Re: Komodo performance issue

On 10-02-11 03:20 PM, Tom SAVELL wrote:
>
>  > How remote is the remote display for your linux machine? Are you
>  > running Komodo over a wide area network? That can really impeded
>  > performance for apps that use pango for AA text rendering like Komodo.
>  > The Tcl script in comparison is only passing around text and using the
>  > most rudimentary Xlib calls.
>
> Hi Jeff,
>
> It's a local area network with 1Gbit ethernet. We use a farm of Linux
> servers spanning various RedHat releases from 3.x to 5.x.
>
> It sounds like you suspect the performance problem with Komodo is
> related to the use of Pango for AA text rendering. Is there any way to
> disable that in order to test your theory? Any other ideas?

No, all the text handling is done by GTK/pango, which is not a 
configurable part of Komodo (i.e. it uses the gtk libraries for text 
display).

You could try remoting Firefox (as it is a Mozilla based product like 
Komodo is) to see if that has the same issues. If Firefox displays the 
same problems, then there is little that can be done in Komodo to fix 
this (we are not going to rewrite the underlying Mozilla/GTK platform :)

>
> I really like the Komodo environment, but the performance is so poor on
> the Linux machines that it is nearly unusable. And because I'm doing
> VLSI design work, I really need to run it on the Linux server as that is
> where the bulk of the code exists.

I tested this on my LAN, remoting over SSH between two Linux machines 
(Centos 5 and Ubuntu) and the menus do display somewhat slower (< 100ms 
to highlight mouse over'd menu entries), though most other functions 
(editing, opening dialogs, etc...) operate in near the same amount of 
time as the locally running Komodo.

Cheers,
Todd
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