[sugar] composite memory usage [was Re: frame auto-visibility configuration]

[Eduardo H. Silva]

Also, just rebooted, turned on Composition again and went to
http://lists.laptop.org/pipermail/bugs/2008-September/thread.html . I
noticed that it took longer to fully render/download the page than
usual (it allways takes long, it's just that this time it took even
longer). Perhaps this is because there composition is done via the
main cpu, which then makes the overall cpu perfomance be slower.
As I type this on Gmail on the XO with composition, and with only
another Browse activity opened, the letters take a while to appear
(i.e., I can type a long piece of text, then stop and see the last few
words being typed "by themselves"). I remember seeing this behaviour a
long time ago (months) but not with recent builds.

Eduardo
2008/9/27 Eduardo H. Silva <hoboprimate at gmail.com>:
> Ok, after more than one hour of exclusively using the XO with
> composition, the system "froze" when I clicked on the "Freedom Fry"
> picture at fsf.org. I had running:
> 1 Terminal, 1 XoIRC, 1 Log, 1 Browse, 1 Write, 1 text clipping in the clipboard
>
> Eduardo
>
> 2008/9/27 Eduardo H. Silva <hoboprimate at gmail.com>:
>> 2008/9/25 Erik Garrison <erik at laptop.org>:
>>> We can file bugs on these issues prior to pushing composite into a
>>> build.  Please file a ticket and add the tag 'composite', and describe
>>> the test setup.
>>>
>>> On Wed, Sep 24, 2008 at 11:27:59PM +0100, Eduardo H. Silva wrote:
>>>> Just to follow-up with trying it, while at first the feeling of using
>>>> composition was of a more responsive system, I did see performance
>>>> degrade as I launched more activities and used it more. The saving
>>>> grace was that there never was any ugly visual redraws (other than
>>>> when a new activity is launching).
>>>
>>> How many activities could you comfortably run?
>>
>> I didn't keep a watch on this. I've installed the latest 8.2 build,
>> and will use composition by default, and file tickets as I find them,
>> and then came back to this thread to answer you better.
>>
>>>
>>>> Plus, there are a few bugs, like new activities launched after
>>>> composition is turned on show their text in a smaller size (like in
>>>> Browses address bar, and in its Back button palette).
>>>
>>> Strange, I haven't noticed this.  Please file a ticket with a test case
>>> to demonstrate.
>>
>> Strange, I'm not seeing this now. Anyway, like I said above, I'll keep
>> it on, and fie tickets as I see bugs.
>>
>>> Erik
>> Eduardo
>>
>