[sugar] memory and cpu profiling

[Tomeu Vizoso]

Hi,

I don't have a board as I expected to not need one for this kind of job.

I thought that the delay caused by running the images in qemu without
kqemu would approximate the performance on the laptop. Unfortunately the
current images don't work on qemu, AFAIK.

By now I will focus on learning to analyse the info given by sysprof and
strace about sugar, contrast it with the systemtap findings by Chris
Ball and try to reach my own conclusions. After that I will update the
wiki with my findings.

The federico posts and docs are very helpful, thanks.

Regards,

Tomeu

On Sat, 2006-09-16 at 10:19 +0200, Marco Pesenti Gritti wrote:
> Tomeu Vizoso wrote:
> > Hi,
> >
> > I would like to work on reducing the memory and cpu footprint of the
> > laptop's software.
> >
> > Could someone point me some low-hanging fruit, available tools and
> > expected procedure (if any)?
> >   
> 
> Hi,
> 
> do you have a board? In my experience running sugar on a developer board 
> is pretty easy to find out performance issues. I never really profiled 
> memory usage but it's definitely something we need to do.
> 
> I don't think there is documentation on tools/procedures. Maybe  someone 
> on the list can correct me.
> 
> I found a lot of interesting posts by Federico about it on his blog:
> http://primates.ximian.com/~federico/news.html
> 
> Also quite relevant a bug posted recently on olpc devel:
> http://dev.laptop.org/ticket/83
> 
> I hope this gives you a starting point. I think figuring out the most 
> relevant issues and document the procedures on the wiki would be a great 
> contribution.
> 
> Thanks,
> Marco