2011/10/25 Dylan Reid dgr...@chromium.org:
I'm playing audio with a latency of 10ms. This is working pretty well, but
it is eating a lot of CPU
Is it just due to the constant waking up and cocntext switching, or do
some other functions light up on a profile run?
Maarten
a profiling run didn't show any hot spots.
Here is the top of the list:
+ 2.81%pacat [kernel.kallsyms] [k] read_hpet
▒
+ 1.75% pulseaudio [kernel.kallsyms] [k] read_hpet
+ 1.75% swapper
Hi Dylan,
please use plain text in your messages, HTML makes it hard to quote your
text...
Your idea of having fewer wakes makes sense. Just technically I think you
are confusing latency with frame size. if you want to use 10ms frames for
speech processing, you will have a 20ms latency, be that
On Tue, Oct 25, 2011 at 9:31 AM, Pierre-Louis Bossart
pierre-louis.boss...@linux.intel.com wrote:
Hi Dylan,
please use plain text in your messages, HTML makes it hard to quote your
text...
Your idea of having fewer wakes makes sense. Just technically I think you
are confusing latency with
I'm playing audio with a latency of 10ms. This is working pretty well, but
it is eating a lot of CPU. Thanks to the helpfulness of this list, I
understand why pulseaudio and pacat wake up every 2ms ((10-2*minreq)/2/2).
How hard would it be to configure it to interrupts less? Is it possible to
