Bug#738981: Fwd: Bug#738981: Switch to use generic_fpu for ARM
peter green
plugwash at p10link.net
Fri Feb 21 01:29:40 UTC 2014
Thomas Orgis wrote:
> So, I got conversion to float implemented now and tested with the
> generic_nofpu decoder on x86-64. It _should_ of course work with ARM,
> too;-) If you'd like to check the current snapshot of mpg123,
>
> http://mpg123.org/snapshot/mpg123-20140220132548.tar.bz2 ,
>
> you hopefull will find that any normal build of mpg123 (unless
> specifying --disable-float explicitly) now offers all usual formats. As
> a bonus, I even implemented the 8 Bit A-Law output, which has always
> just been a placeholder (nobody missed it, apparently).
>
> I'd be interested on some timings of
>
> mpg123 -t -e s16 test.mp3
> mpg123 -t -e f32 test.mp3
>
> with the various builds you'll do for the ARM variants. Best would be running
>
> perl scripts/benchmark-cpu.pl src/mpg123 convergence_-_points_of_view/*.mp3
>
> with
>
> http://mpg123.orgis.org/convergence_-_points_of_view.tar.gz
>
> as reference album, as mentioned on
>
> http://mpg123.orgis.org/benchmarking.shtml
>
> to be able to compare the performance of the code and machine to
> others. This yields output like this:
>
> #mpg123 benchmark (user CPU time in seconds for decoding)
> #decoder t_s16/s t_f32/s
> x86-64 3.39 4.05
> generic 6.15 6.01
> generic_dither 6.36 5.97
>
> ... or this, with --with-cpu=generic_fpu:
>
> #mpg123 benchmark (user CPU time in seconds for decoding)
> #decoder t_s16/s t_f32/s
> generic 6.14 6.29
>
> (on a Core2Duo machine)
Ok, on a 1GHz freescale IMX53 (cortex A8) in a (probablly somewhat out
of date) debian sid armhf chroot I tested with "perl
scripts/benchmark-cpu.pl src/mpg123 convergence_-_points_of_view/*.mp3"
in the following configurations.
Built with ./configure --with-cpu=arm_nofpu
#mpg123 benchmark (user CPU time in seconds for decoding)
#decoder t_s16/s t_f32/s
ARM 30.36 34.26
Built with ./configure --with-cpu=generic_fpu
#mpg123 benchmark (user CPU time in seconds for decoding)
#decoder t_s16/s t_f32/s
generic 148.66 138.49
Build with CFLAGS=-mfpu=neon ./configure --with-cpu=neon
#mpg123 benchmark (user CPU time in seconds for decoding)
#decoder t_s16/s t_f32/s
NEON 0.03 0.04
I found the neon result unbelivable so I decided to run the test program
you mentioned to me in my private mail asking about how to run the
benchmarks.
root at plugwash:/mpg123-test#
LD_LIBRARY_PATH=/mpg123-20140220132548-arm_nofpu/src/libmpg123/.libs/
perl compliance.pl /mpg123-20140220132548-arm_nofpu/src/mpg123
==== Layer 1 ====
--> 16 bit signed integer output
fl1.bit: RMS=3.486054e-02 (FAIL) maxdiff=5.002832e-02 (FAIL)
fl2.bit: RMS=3.485670e-02 (FAIL) maxdiff=5.008233e-02 (FAIL)
fl3.bit: RMS=3.485293e-02 (FAIL) maxdiff=5.008245e-02 (FAIL)
fl4.bit: RMS=1.510105e-01 (FAIL) maxdiff=5.277658e-01 (FAIL)
fl5.bit: RMS=3.109439e-01 (FAIL) maxdiff=4.475173e-01 (FAIL)
fl6.bit: RMS=1.649138e-01 (FAIL) maxdiff=4.589995e-01 (FAIL)
fl7.bit: RMS=2.211659e-02 (FAIL) maxdiff=2.959942e-01 (FAIL)
fl8.bit: RMS=3.484906e-02 (FAIL) maxdiff=5.002034e-02 (FAIL)
--> 32 bit integer output
fl1.bit: RMS=3.486054e-02 (FAIL) maxdiff=5.002832e-02 (FAIL)
fl2.bit: RMS=3.485670e-02 (FAIL) maxdiff=5.008233e-02 (FAIL)
fl3.bit: RMS=3.485293e-02 (FAIL) maxdiff=5.008245e-02 (FAIL)
fl4.bit: RMS=1.513207e-01 (FAIL) maxdiff=4.787517e-01 (FAIL)
fl5.bit: RMS=3.109439e-01 (FAIL) maxdiff=4.475173e-01 (FAIL)
fl6.bit: RMS=1.649138e-01 (FAIL) maxdiff=4.589995e-01 (FAIL)
fl7.bit: RMS=2.211659e-02 (FAIL) maxdiff=2.959942e-01 (FAIL)
fl8.bit: RMS=3.484906e-02 (FAIL) maxdiff=5.002034e-02 (FAIL)
--> 24 bit integer output
fl1.bit: RMS=3.486054e-02 (FAIL) maxdiff=5.002832e-02 (FAIL)
fl2.bit: RMS=3.485670e-02 (FAIL) maxdiff=5.008233e-02 (FAIL)
fl3.bit: RMS=3.485293e-02 (FAIL) maxdiff=5.008245e-02 (FAIL)
fl4.bit: RMS=1.494715e-01 (FAIL) maxdiff=4.984906e-01 (FAIL)
fl5.bit: RMS=3.109439e-01 (FAIL) maxdiff=4.475173e-01 (FAIL)
fl6.bit: RMS=1.649138e-01 (FAIL) maxdiff=4.589995e-01 (FAIL)
fl7.bit: RMS=2.211659e-02 (FAIL) maxdiff=2.959942e-01 (FAIL)
fl8.bit: RMS=3.484906e-02 (FAIL) maxdiff=5.002034e-02 (FAIL)
--> 32 bit floating point output
fl1.bit: RMS=3.486054e-02 (FAIL) maxdiff=5.002832e-02 (FAIL)
fl2.bit: RMS=3.485670e-02 (FAIL) maxdiff=5.008233e-02 (FAIL)
fl3.bit: RMS=3.485293e-02 (FAIL) maxdiff=5.008245e-02 (FAIL)
fl4.bit: RMS=1.137037e-01 (FAIL) maxdiff=4.459082e-01 (FAIL)
fl5.bit: RMS=3.109439e-01 (FAIL) maxdiff=4.475173e-01 (FAIL)
fl6.bit: RMS=1.649138e-01 (FAIL) maxdiff=4.589995e-01 (FAIL)
fl7.bit: RMS=2.211659e-02 (FAIL) maxdiff=2.959942e-01 (FAIL)
fl8.bit: RMS=3.484906e-02 (FAIL) maxdiff=5.002034e-02 (FAIL)
==== Layer 2 ====
--> 16 bit signed integer output
fl10.bit: RMS=3.528939e-02 (FAIL) maxdiff=6.501251e-02 (FAIL)
fl11.bit: RMS=3.528947e-02 (FAIL) maxdiff=6.501383e-02 (FAIL)
fl12.bit: RMS=3.528948e-02 (FAIL) maxdiff=6.501538e-02 (FAIL)
fl13.bit: RMS=2.169086e-01 (FAIL) maxdiff=5.500084e-01 (FAIL)
fl14.bit: RMS=3.109485e-01 (FAIL) maxdiff=4.486248e-01 (FAIL)
fl15.bit: RMS=1.051756e-01 (FAIL) maxdiff=4.656556e-01 (FAIL)
fl16.bit: RMS=6.194990e-02 (FAIL) maxdiff=4.863935e-01 (FAIL)
--> 32 bit integer output
fl10.bit: RMS=3.528939e-02 (FAIL) maxdiff=6.501251e-02 (FAIL)
fl11.bit: RMS=3.528947e-02 (FAIL) maxdiff=6.501383e-02 (FAIL)
fl12.bit: RMS=3.528948e-02 (FAIL) maxdiff=6.501538e-02 (FAIL)
fl13.bit: RMS=2.377473e-01 (FAIL) maxdiff=5.390697e-01 (FAIL)
fl14.bit: RMS=3.109485e-01 (FAIL) maxdiff=4.486248e-01 (FAIL)
fl15.bit: RMS=1.051756e-01 (FAIL) maxdiff=4.656556e-01 (FAIL)
fl16.bit: RMS=6.194990e-02 (FAIL) maxdiff=4.863935e-01 (FAIL)
--> 24 bit integer output
fl10.bit: RMS=3.528939e-02 (FAIL) maxdiff=6.501251e-02 (FAIL)
fl11.bit: RMS=3.528947e-02 (FAIL) maxdiff=6.501383e-02 (FAIL)
fl12.bit: RMS=3.528948e-02 (FAIL) maxdiff=6.501538e-02 (FAIL)
fl13.bit: RMS=2.093457e-01 (FAIL) maxdiff=5.390697e-01 (FAIL)
fl14.bit: RMS=3.109485e-01 (FAIL) maxdiff=4.486248e-01 (FAIL)
fl15.bit: RMS=1.051756e-01 (FAIL) maxdiff=4.656556e-01 (FAIL)
fl16.bit: RMS=6.194990e-02 (FAIL) maxdiff=4.863935e-01 (FAIL)
--> 32 bit floating point output
fl10.bit: RMS=3.528939e-02 (FAIL) maxdiff=6.501251e-02 (FAIL)
fl11.bit: RMS=3.528947e-02 (FAIL) maxdiff=6.501383e-02 (FAIL)
fl12.bit: RMS=3.528948e-02 (FAIL) maxdiff=6.501538e-02 (FAIL)
fl13.bit: RMS=1.850494e-01 (FAIL) maxdiff=5.390697e-01 (FAIL)
fl14.bit: RMS=3.109485e-01 (FAIL) maxdiff=4.486248e-01 (FAIL)
fl15.bit: RMS=1.051756e-01 (FAIL) maxdiff=4.656556e-01 (FAIL)
fl16.bit: RMS=6.194990e-02 (FAIL) maxdiff=4.863935e-01 (FAIL)
==== Layer 3 ====
--> 16 bit signed integer output
compl.bit: RMS=7.754415e-02 (FAIL) maxdiff=4.619989e-01 (FAIL)
--> 32 bit integer output
compl.bit: RMS=9.465917e-02 (FAIL) maxdiff=5.095977e-01 (FAIL)
--> 24 bit integer output
compl.bit: RMS=5.263265e-02 (FAIL) maxdiff=2.595977e-01 (FAIL)
--> 32 bit floating point output
compl.bit: RMS=6.627619e-02 (FAIL) maxdiff=3.997431e-01 (FAIL)
root at plugwash:/mpg123-test#
root at plugwash:/mpg123-test#
LD_LIBRARY_PATH=/mpg123-20140220132548-generic_fpu/src/libmpg123/.libs/
perl compliance.pl /mpg123-20140220132548-generic_fpu/src/mpg123
==== Layer 1 ====
--> 16 bit signed integer output
fl1.bit: RMS=8.683659e-06 (PASS) maxdiff=1.525879e-05 (PASS)
fl2.bit: RMS=8.686681e-06 (PASS) maxdiff=1.525879e-05 (PASS)
fl3.bit: RMS=8.737660e-06 (PASS) maxdiff=1.525879e-05 (PASS)
fl4.bit: RMS=8.806232e-06 (PASS) maxdiff=1.525879e-05 (PASS)
fl5.bit: RMS=9.013229e-06 (LIMITED) maxdiff=1.525879e-05 (PASS)
fl6.bit: RMS=8.759997e-06 (PASS) maxdiff=1.525879e-05 (PASS)
fl7.bit: RMS=7.289141e-06 (PASS) maxdiff=1.525879e-05 (PASS)
fl8.bit: RMS=8.687595e-06 (PASS) maxdiff=1.525879e-05 (PASS)
--> 32 bit integer output
fl1.bit: RMS=1.972732e-08 (PASS) maxdiff=1.490116e-07 (PASS)
fl2.bit: RMS=1.977832e-08 (PASS) maxdiff=1.117587e-07 (PASS)
fl3.bit: RMS=2.009690e-08 (PASS) maxdiff=1.359731e-07 (PASS)
fl4.bit: RMS=1.908054e-08 (PASS) maxdiff=1.303852e-07 (PASS)
fl5.bit: RMS=3.893589e-08 (PASS) maxdiff=1.192093e-07 (PASS)
fl6.bit: RMS=3.228863e-08 (PASS) maxdiff=1.788139e-07 (PASS)
fl7.bit: RMS=1.773698e-08 (PASS) maxdiff=8.381903e-08 (PASS)
fl8.bit: RMS=1.866009e-08 (PASS) maxdiff=8.381903e-08 (PASS)
--> 24 bit integer output
fl1.bit: RMS=4.115537e-08 (PASS) maxdiff=1.192093e-07 (PASS)
fl2.bit: RMS=4.173207e-08 (PASS) maxdiff=1.192093e-07 (PASS)
fl3.bit: RMS=4.138772e-08 (PASS) maxdiff=1.788139e-07 (PASS)
fl4.bit: RMS=4.128280e-08 (PASS) maxdiff=1.192093e-07 (PASS)
fl5.bit: RMS=4.807225e-08 (PASS) maxdiff=1.192093e-07 (PASS)
fl6.bit: RMS=4.042650e-08 (PASS) maxdiff=1.788139e-07 (PASS)
fl7.bit: RMS=4.193615e-08 (PASS) maxdiff=1.192093e-07 (PASS)
fl8.bit: RMS=4.116006e-08 (PASS) maxdiff=1.192093e-07 (PASS)
--> 32 bit floating point output
fl1.bit: RMS=1.971453e-08 (PASS) maxdiff=1.490116e-07 (PASS)
fl2.bit: RMS=1.977459e-08 (PASS) maxdiff=1.117587e-07 (PASS)
fl3.bit: RMS=2.010474e-08 (PASS) maxdiff=1.341105e-07 (PASS)
fl4.bit: RMS=1.907853e-08 (PASS) maxdiff=1.266599e-07 (PASS)
fl5.bit: RMS=3.920450e-08 (PASS) maxdiff=1.192093e-07 (PASS)
fl6.bit: RMS=3.231139e-08 (PASS) maxdiff=1.788139e-07 (PASS)
fl7.bit: RMS=1.772345e-08 (PASS) maxdiff=8.195639e-08 (PASS)
fl8.bit: RMS=1.864753e-08 (PASS) maxdiff=8.376082e-08 (PASS)
==== Layer 2 ====
--> 16 bit signed integer output
fl10.bit: RMS=9.249037e-06 (LIMITED) maxdiff=1.525879e-05 (PASS)
fl11.bit: RMS=9.069406e-06 (LIMITED) maxdiff=1.525879e-05 (PASS)
fl12.bit: RMS=9.060801e-06 (LIMITED) maxdiff=1.525879e-05 (PASS)
fl13.bit: RMS=8.778473e-06 (PASS) maxdiff=1.525879e-05 (PASS)
fl14.bit: RMS=8.688631e-06 (PASS) maxdiff=1.525879e-05 (PASS)
fl15.bit: RMS=8.784508e-06 (PASS) maxdiff=1.525879e-05 (PASS)
fl16.bit: RMS=7.982127e-06 (PASS) maxdiff=1.525879e-05 (PASS)
--> 32 bit integer output
fl10.bit: RMS=1.787536e-08 (PASS) maxdiff=8.288771e-08 (PASS)
fl11.bit: RMS=1.796403e-08 (PASS) maxdiff=1.005828e-07 (PASS)
fl12.bit: RMS=1.791192e-08 (PASS) maxdiff=8.940697e-08 (PASS)
fl13.bit: RMS=1.770106e-08 (PASS) maxdiff=4.470348e-08 (PASS)
fl14.bit: RMS=3.900489e-08 (PASS) maxdiff=1.192093e-07 (PASS)
fl15.bit: RMS=2.472882e-08 (PASS) maxdiff=1.490116e-07 (PASS)
fl16.bit: RMS=1.951551e-08 (PASS) maxdiff=1.788139e-07 (PASS)
--> 24 bit integer output
fl10.bit: RMS=4.102704e-08 (PASS) maxdiff=1.192093e-07 (PASS)
fl11.bit: RMS=4.111382e-08 (PASS) maxdiff=1.192093e-07 (PASS)
fl12.bit: RMS=4.105048e-08 (PASS) maxdiff=1.192093e-07 (PASS)
fl13.bit: RMS=4.127193e-08 (PASS) maxdiff=5.960464e-08 (PASS)
fl14.bit: RMS=4.979262e-08 (PASS) maxdiff=1.192093e-07 (PASS)
fl15.bit: RMS=4.137607e-08 (PASS) maxdiff=1.788139e-07 (PASS)
fl16.bit: RMS=4.163997e-08 (PASS) maxdiff=1.788139e-07 (PASS)
--> 32 bit floating point output
fl10.bit: RMS=1.787791e-08 (PASS) maxdiff=8.288771e-08 (PASS)
fl11.bit: RMS=1.796339e-08 (PASS) maxdiff=1.005828e-07 (PASS)
fl12.bit: RMS=1.790768e-08 (PASS) maxdiff=8.568168e-08 (PASS)
fl13.bit: RMS=1.769857e-08 (PASS) maxdiff=4.470348e-08 (PASS)
fl14.bit: RMS=3.885701e-08 (PASS) maxdiff=1.192093e-07 (PASS)
fl15.bit: RMS=2.477253e-08 (PASS) maxdiff=1.788139e-07 (PASS)
fl16.bit: RMS=1.951434e-08 (PASS) maxdiff=1.490116e-07 (PASS)
==== Layer 3 ====
--> 16 bit signed integer output
compl.bit: RMS=8.907547e-06 (LIMITED) maxdiff=1.531839e-05 (PASS)
--> 32 bit integer output
compl.bit: RMS=2.152941e-08 (PASS) maxdiff=1.769513e-07 (PASS)
--> 24 bit integer output
compl.bit: RMS=4.205970e-08 (PASS) maxdiff=1.788139e-07 (PASS)
--> 32 bit floating point output
compl.bit: RMS=2.153062e-08 (PASS) maxdiff=1.769513e-07 (PASS)
root at plugwash:/mpg123-test#
root at plugwash:/mpg123-test#
LD_LIBRARY_PATH=/mpg123-20140220132548-neon/src/libmpg123/.libs/ perl
compliance.pl /mpg123-20140220132548-neon/src/mpg123
==== Layer 1 ====
--> 16 bit signed integer output
fl1.bit: RMS= nan (FAIL) maxdiff=0.000000e+00 (PASS)
Illegal instruction
fl2.bit: RMS= nan (FAIL) maxdiff=0.000000e+00 (PASS)
Illegal instruction
fl3.bit: RMS= nan (FAIL) maxdiff=0.000000e+00 (PASS)
Illegal instruction
fl4.bit: RMS= nan (FAIL) maxdiff=0.000000e+00 (PASS)
Illegal instruction
fl5.bit: RMS= nan (FAIL) maxdiff=0.000000e+00 (PASS)
Illegal instruction
fl6.bit: RMS= nan (FAIL) maxdiff=0.000000e+00 (PASS)
Illegal instruction
fl7.bit: RMS= nan (FAIL) maxdiff=0.000000e+00 (PASS)
Illegal instruction
fl8.bit: RMS= nan (FAIL) maxdiff=0.000000e+00 (PASS)
Illegal instruction
==== Layer 2 ====
--> 16 bit signed integer output
fl10.bit: RMS= nan (FAIL) maxdiff=0.000000e+00 (PASS)
Illegal instruction
fl11.bit: RMS= nan (FAIL) maxdiff=0.000000e+00 (PASS)
Illegal instruction
fl12.bit: RMS= nan (FAIL) maxdiff=0.000000e+00 (PASS)
Illegal instruction
fl13.bit: RMS= nan (FAIL) maxdiff=0.000000e+00 (PASS)
Illegal instruction
fl14.bit: RMS= nan (FAIL) maxdiff=0.000000e+00 (PASS)
Illegal instruction
fl15.bit: RMS= nan (FAIL) maxdiff=0.000000e+00 (PASS)
Illegal instruction
fl16.bit: RMS= nan (FAIL) maxdiff=0.000000e+00 (PASS)
Illegal instruction
==== Layer 3 ====
--> 16 bit signed integer output
compl.bit: RMS= nan (FAIL) maxdiff=0.000000e+00 (PASS)
Illegal instruction
root at plugwash:/mpg123-test#
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