From: Frederic Dalleau <frederic.dalleau@access-company.com>
To: Tim Chick <chick@computergeek.freeserve.co.uk>
Cc: bluez-devel@lists.sourceforge.net
Subject: [Bluez-devel] Question about poll() - was Re: a2dpd and mplayer - any chance to get it working?
Date: Thu, 05 Apr 2007 10:59:09 +0200 [thread overview]
Message-ID: <4614BA5D.5010701@access-company.com> (raw)
In-Reply-To: <200703271501.49792.chick@computergeek.freeserve.co.uk>
Hi,
I'm investigating the problem tim talked about :
>>> I am using CVS from last night, and I see basically 100% CPU usage
>>> from a2dpd, with mpg321 and mplayer whilst it is streaming.
>>> =
While I don't get 100% on arm I got a significant cpu usage which the =
previous btsco was not doing.
When streaming a2dpd is calling poll with small timeouts (like 1 ms) to =
ensure packets get sent at right time.
If poll(x,y,1) is replaced by usleep(1); poll(x,y,0) then cpu usage fall =
back to 0.
This means the poll call itself is burning cpu. Mmmm, I think this is =
strange.
Any ideas? What's the best place to find information for question like this?
Fr=E9d=E9ric
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next prev parent reply other threads:[~2007-04-05 8:59 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-15 2:26 [Bluez-devel] a2dpd and mplayer - any chance to get it working? Robert Huitl
2007-01-17 7:03 ` [Bluez-devel] RE : " Frederic Dalleau
2007-01-17 18:05 ` [Bluez-devel] " Robert Huitl
2007-01-17 18:35 ` [Bluez-devel] RE : " Fabien Chevalier
2007-01-17 19:15 ` Brad Midgley
2007-01-18 17:50 ` Fabien Chevalier
2007-01-28 19:30 ` [Bluez-devel] " Robert Huitl
2007-01-29 3:01 ` Brad Midgley
2007-02-02 16:55 ` Frédéric DALLEAU
2007-02-06 19:25 ` Michael Frey
2007-03-27 10:39 ` Tim Chick
2007-03-27 13:33 ` Frederic Dalleau
2007-03-27 14:01 ` Tim Chick
2007-04-05 8:59 ` Frederic Dalleau [this message]
2007-04-06 5:17 ` [Bluez-devel] Question about poll() - was " Brad Midgley
2007-04-06 16:05 ` [Bluez-devel] " Frederic Dalleau
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