[LAU] optimizing jackd build

[Dragan Noveski]

Mike Taht wrote:
> does jack say it's running SSE on startup?
now, since i recompiled with --enable-dynsimd it says:

...
JACK tmpdir identified as [/dev/shm/]
SSE2 detected
load = 0.2297 max usecs: 40.000, spare = 10626.000
...

looks like a nice hint??

what is about processor type and architecture?
are there more hints about optimizing?

cheers,
doc


>
> On 4/9/07, *Dragan Noveski* <perodog at gmx.net <mailto:perodog at gmx.net>> 
> wrote:
>
>     Mike Taht wrote:
>     >
>     >
>     > On 4/9/07, *Dragan Noveski* <perodog at gmx.net
>     <mailto:perodog at gmx.net> <mailto:perodog at gmx.net
>     <mailto:perodog at gmx.net>>>
>     > wrote:
>     >
>     >     hi list,
>     >     i read some threads in the ardour forum about optimizing the
>     jackd
>     >     build, so i would like to find out, if i can build jackd
>     here with
>     >     more
>     >     optimizing ...since i think that more optimizing is better
>     than less
>     >     optimizing??
>     >
>     >     the way i am building jack until now is simply:
>     >
>     >
>     >     ./configure --with-default-tmpdir=/dev/shm/
>     >
>     >
>     > add --enable-dynsimd to turn on SSE. Helps a LOT.
>     >
>     >     when i run configure like this, i turns:
>     >
>     >     jack-audio-connection-kit 0.103.0 :
>     >
>     >     | Build with ALSA support............................... : true
>     >     | Build with FreeBob support............................ :
>     false
>     >     | Build with OSS support................................ : true
>     >     | Build with CoreAudio support.......................... : false
>     >     | Build with PortAudio support.......................... : true
>     >     | Compiler optimization flags........................... :
>     >     -DREENTRANT
>     >     -O3 -fomit-frame-pointer -ffast-math -funroll-loops
>     -march=i686 -mmmx
>     >     -msse -mfpmath=sse
>     >
>     but for me with this line, sse seems to be turned on already?
>     i just added the option you mentioned, but the configure output is
>     the same.
>
>     cheers,
>     doc
>     >
>     >     | Compiler full flags................................... :
>     >     -I$(top_srcdir)/config -I$(top_srcdir) -I$(top_srcdir)
>     -D_REENTRANT
>     >     -D_POSIX_PTHREAD_SEMANTICS -Wall -g -g -O2 -I/usr/include/nptl
>     >     | Install dir for libjack + backends.................... :
>     >     ${exec_prefix}/lib/jack
>     >     |
>     >     | Default driver backend................................ :
>     "alsa"
>     >     | Shared memory interface............................... :
>     "System V"
>     >     | Install prefix........................................ :
>     /usr/local
>     >
>     >
>     >     the processor type in the kernel config here is 'Pentium M'
>     but i
>     >     don't
>     >     know if the '-march=i686' could be changed with something like
>     >     'pentium M'.
>     >     since i am using a self made kernel, only a little help in
>     this issue
>     >     would help me a lot.
>     >
>     >     cheers,
>     >     doc
>     >
>     >
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>     >     <mailto:Linux-audio-user at lists.linuxaudio.org
>     <mailto:Linux-audio-user at lists.linuxaudio.org>>
>     >    
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>     >
>     >
>     >
>     >
>     > --
>     > Mike Taht
>     > PostCards From the Bleeding Edge
>     > http://the-edge.blogspot.com <http://the-edge.blogspot.com>
>     <http://the-edge.blogspot.com>
>     >
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> -- 
> Mike Taht
> PostCards From the Bleeding Edge
> http://the-edge.blogspot.com
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