Slow composing mail

[Benon Fuertes]

Hello everyone.

I'm tired of waiting while trying to compose a new e-mail in Evolution.
I just press the "New" button, and it appears to be working behind, but
it's only after at least 15 seconds that it throws the compose screen.

My version of Evolution is 2.26.1, and I'm using it in Ubuntu 9.04
jaunty, through a ltsp thin client. I think remote X has to do with the
problem, because of what I read here, specifically, the four last
messages:

https://bugs.launchpad.net/ubuntu/+source/ltsp/+bug/225950

The thing is, I'd like to know if this problem is solved, or if there is
a way to fix it.

Thank you.

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[Nick Jenkins]

> I'm tired of waiting while trying to compose a new e-mail in
> Evolution. I just press the "New" button, and it appears to be working
> behind, but it's only after at least 15 seconds that it throws the
> compose screen. My version of Evolution is 2.26.1, and I'm using it
> in Ubuntu 9.04 jaunty, through a ltsp thin client.

I'm not using remote X, and it takes (or feels like it takes) about 3
seconds on the very first "new" mail button click, and about 1.5 to 2
seconds thereafter. It's enough time to start questioning whether the
click was detected or not, and then feel a sense of relief when the
window pops up.
Save version of Evo and Ubuntu, on a reasonably decent machine (Intel
Q6600 quad core using as a 64-bit platform, 4 GB RAM, nvidia PCIe
graphics, SATA HDDs, etc).
I would expect it to be a little faster than 1.5 to 3 seconds, so I kind
of wonder what it's doing in that time; maybe if the local case was a
bit faster (e.g. 1 second max, half a second on average) then the remote
case would be better too? I do have some compiz eye-candy enabled
(System -> Appearance -> Visual Effects is set to "Normal"), don't know
if that's relevant or not. But I don't see any delay that's approaching
15 seconds.

-- All the best,
Nick.

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[Matthew Barnes]

On Fri, 2009-06-26 at 13:25 +1000, Nick Jenkins wrote:
> I would expect it to be a little faster than 1.5 to 3 seconds, so I kind
> of wonder what it's doing in that time; maybe if the local case was a
> bit faster (e.g. 1 second max, half a second on average) then the remote
> case would be better too? I do have some compiz eye-candy enabled
> (System -> Appearance -> Visual Effects is set to "Normal"), don't know
> if that's relevant or not. But I don't see any delay that's approaching
> 15 seconds.

It's usually trying to contact your address books during that delay.
Problem is we do that (synchronously) in the same execution thread that
draws the UI, so the UI is blocked from displaying the window.  If you
have remote address books, especially ones that are large or slow to
respond, this can cause the significant delay you're seeing.

The good news is we have a patch to address this (thanks to Milan Crha),
and I think it may have been committed to the development branch
already.

Matthew Barnes


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