Speex dev - Sep 2005 - Speex 1.1.10 on ARM926EJ-Sid(wb) rev 3 (v5l)

Hi all,
 


  I'm trying to use libspeex 1.1.10 on an ARM926EJ-Sid(wb) rev 3
(v5l). I executed
the speexenc and speexdec test files and they can encode and decode.
But I'm getting 95% of cpu utilization on the codification and 44% on
the decodification.
  I saw in the post:
http://lists.xiph.org/pipermail/speex-dev/2005-June/003485.html
  that this version of speex works fine on ARM platforms. My configuration
is:

# cat /proc/cpuinfo
Processor       : ARM926EJ-Sid(wb) rev 3 (v5l)
BogoMIPS        : 95.83 (about 192 MHz)
Features        : swp half thumb fastmult edsp java
CPU implementer : 0x41
CPU architecture: 5TEJ
CPU variant     : 0x0
CPU part        : 0x926
CPU revision    : 3
Cache type      : write-back
Cache clean     : cp15 c7 ops
Cache lockdown  : format C
Cache format    : Harvard

#  gcc --version
arm-linux-gcc (GCC) 3.3.2 (Debian)

Configuration: --enable-fixed-point --enable-arm5e-asm

Speex specs: Complexity 0, 8Kbps
Encoding: ~95%, Decoding: ~44%, without Echo Cancellation / Pre-processor

  Does anyone know how I can reduce this utilization? Is there any
float point code on speexenc/speexdec that wasn't converted to
fixed point?

-- 
Eduardo Bezerra Valentin
Bacharelado em Ci?ncia da Computa??o - DCC - UFAM
Laborat?rio de VoIP - GRSD - UFAM

Hi Eduardo,

All I can say is that the timings you have are a bit odd. What
optimizations options are you using (I suggest -O3)? Also, perhaps you
can try --enable-arm4-asm just in case. I've had the encoder running in
real-time on a chip that's at least twice slower than yours with the
settings you're using.

	Jean-Marc

Le jeudi 15 septembre 2005 ? 16:23 -0400, Eduardo Bezerra a ?crit
:
> Hi all,
>  
> 
> 
>   I'm trying to use libspeex 1.1.10 on an ARM926EJ-Sid(wb) rev 3
> (v5l). I executed
> the speexenc and speexdec test files and they can encode and decode.
> But I'm getting 95% of cpu utilization on the codification and 44% on
> the decodification.
>   I saw in the post:
> http://lists.xiph.org/pipermail/speex-dev/2005-June/003485.html
>   that this version of speex works fine on ARM platforms. My configuration
> is:
> 
> # cat /proc/cpuinfo
> Processor       : ARM926EJ-Sid(wb) rev 3 (v5l)
> BogoMIPS        : 95.83 (about 192 MHz)
> Features        : swp half thumb fastmult edsp java
> CPU implementer : 0x41
> CPU architecture: 5TEJ
> CPU variant     : 0x0
> CPU part        : 0x926
> CPU revision    : 3
> Cache type      : write-back
> Cache clean     : cp15 c7 ops
> Cache lockdown  : format C
> Cache format    : Harvard
> 
> #  gcc --version
> arm-linux-gcc (GCC) 3.3.2 (Debian)
> 
> Configuration: --enable-fixed-point --enable-arm5e-asm
> 
> Speex specs: Complexity 0, 8Kbps
> Encoding: ~95%, Decoding: ~44%, without Echo Cancellation / Pre-processor
> 
>   Does anyone know how I can reduce this utilization? Is there any
> float point code on speexenc/speexdec that wasn't converted to
> fixed point?
> 
-- 
Jean-Marc Valin <Jean-Marc.Valin@USherbrooke.ca>
Universit? de Sherbrooke

Hi,

I tried the same options suggested in your post and the problem
continues. What do you suggest?

2005/9/15, Jean-Marc Valin
<Jean-Marc.Valin@usherbrooke.ca>:
> Hi Eduardo,
> 
> All I can say is that the timings you have are a bit odd. What
> optimizations options are you using (I suggest -O3)? Also, perhaps you
> can try --enable-arm4-asm just in case. I've had the encoder running in
> real-time on a chip that's at least twice slower than yours with the
> settings you're using.
> 
>         Jean-Marc
> 
> Le jeudi 15 septembre 2005 ? 16:23 -0400, Eduardo Bezerra a ?crit :
> > Hi all,
> >
> >
> >
> >   I'm trying to use libspeex 1.1.10 on an ARM926EJ-Sid(wb) rev 3
> > (v5l). I executed
> > the speexenc and speexdec test files and they can encode and decode.
> > But I'm getting 95% of cpu utilization on the codification and 44%
on
> > the decodification.
> >   I saw in the post:
> > http://lists.xiph.org/pipermail/speex-dev/2005-June/003485.html
> >   that this version of speex works fine on ARM platforms. My
configuration
> > is:
> >
> > # cat /proc/cpuinfo
> > Processor       : ARM926EJ-Sid(wb) rev 3 (v5l)
> > BogoMIPS        : 95.83 (about 192 MHz)
> > Features        : swp half thumb fastmult edsp java
> > CPU implementer : 0x41
> > CPU architecture: 5TEJ
> > CPU variant     : 0x0
> > CPU part        : 0x926
> > CPU revision    : 3
> > Cache type      : write-back
> > Cache clean     : cp15 c7 ops
> > Cache lockdown  : format C
> > Cache format    : Harvard
> >
> > #  gcc --version
> > arm-linux-gcc (GCC) 3.3.2 (Debian)
> >
> > Configuration: --enable-fixed-point --enable-arm5e-asm
> >
> > Speex specs: Complexity 0, 8Kbps
> > Encoding: ~95%, Decoding: ~44%, without Echo Cancellation /
Pre-processor
> >
> >   Does anyone know how I can reduce this utilization? Is there any
> > float point code on speexenc/speexdec that wasn't converted to
> > fixed point?
> >
> --
> Jean-Marc Valin <Jean-Marc.Valin@USherbrooke.ca>
> Universit? de Sherbrooke
> 

-- 
Eduardo Bezerra Valentin
Bacharelado em Ci?ncia da Computa??o - DCC - UFAM
Laborat?rio de VoIP - GRSD - UFAM