CPU loading issue

[David McCullough]

Aleksander Morgado wrote the following:
> On Wed, Jun 10, 2015 at 4:30 PM, David McCullough
> <david.mccullough at accelecon.com> wrote:
> >> > I am using an embedded platform and after a bit of fiddling I have built the package and used it.
> >> >
> >> > Trace attached.
> >>
> >> Thanks; that gets us further since the two functions that are getting
> >> called all the time are "match" and "pcre_exec".  Unfortunately that
> >> doesn't tell us *which* regex this is...  Aleksander, any ideas?
> >
> > Remember Marc has modded the GPS to send data every second.  Maybe the
> > Huawei is sending more info per second than other modesm are sending ?
> >
> > IIRC the GPS (NMEA?) dumps comes in on 2 of the USB tty ports,  both of
> > which MM is watching.  The incoming data is parsed using the modem manager
> > pattern matching,  thus the match/pcre stuff you see.
> >
> > The GPS data can be fairly verbose from memory,  depending on numbers of
> > satelites etc,  maybe we are just getting too much ?  I am not and expert
> > on the GPS data so I really can't say.  Perhaps the combination of all
> > modem chitchat is just queuing up and modem manager is getting behind ?
> >
> > I have a 400MHz ARM that I have been running the MU609 in for the last day.
> > It polls at the default 30 seconds and is still running at 0% popping up to
> > 5-6% every now and then.
> 
> Could you maybe set the same 1s update in the MU609 and see if MM
> behaves worse in the same board?

Running now,  no signs yet.

CPU is higher, always 4-6%, will see how it goes over time.

Cheers,
Davidm

-- 
David McCullough,  david.mccullough at accelecon.com,   Ph: 0410 560 763