ubuntu-phone team mailing list archive

[Michael Zanetti <michael.zanetti@xxxxxxxxxxxxx>]

Hey,

thanks. Yes, I can confirm that. Since a few days I noticed qml-phone-shell 
taking up 30% - 40% CPU too. Haven't yet seen maliit-server doing that on my 
phone.

I've been thinking about some small daemon that would collect CPU times of 
apps and send that to some stats server in an automated manner. I think that 
would be very useful. Shouldn't be too hard to create some snapshots every x 
seconds and send collected reports to a server once a day or so. There we 
could create stats on which binaries use the most CPU and get a good feeling 
where optimisation is needed. In a second step this could also include crash 
traces and such.

Of course this would need to be an opt-in feature.

What do you think?

Br,
Michael

On Thursday 06 June 2013 23:09:03 Ricky Chan wrote:
> Just had it filed here:
> 
> https://bugs.launchpad.net/phone-app/+bug/1188225
> 
> 
> On Thu, Jun 6, 2013 at 10:26 PM, Sergio Schvezov <
> 
> sergio.schvezov@xxxxxxxxxxxxx> wrote:
> > On Thu, Jun 6, 2013 at 5:27 AM, Ricky Chan <djghosie@xxxxxxxxx> wrote:
> >> Hi Michael,
> >> 
> >> I've trialed some replication method for the heating up / battery drain
> >> issue. Having checked in terminal, the two services are taking up most of
> >> the CPU usage:
> >> 
> >> 1. Maliit-server (~35%)
> >> 2. qml-phone-shell (~35%)
> >> 
> >> In order to reproduce the battery drain, I tried the followings:
> >> 
> >> 1. Let the phone to connect to a registered wifi connection
> >> 2. Move to an area where there's no wifi network which is registered by
> >> the phone.
> >> 3. Then slowly but surely the phone will heat up.
> >> 
> >> It seems like when the current connection is lost, the phone will try
> >> frantically to find another connection.
> >> 
> >> It's  happening to many previous builds. I'm currently on build #153
> >> using Mako.
> > 
> > Hey, nice.
> > 
> > So have you logged a bug report for this?  Seems roaming has caused ofono
> > to also go to ~35% CPU usage. I might add to it if it seems related.
> > 
> > Cheers
> > Sergio.