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@@ -74,3 +74,4 @@ test/metaflac.flac | |
test/picture.diff | ||
test/picture.log | ||
.dirstamp | ||
microbench/benchmark_residual |
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# FLAC - Free Lossless Audio Codec | ||
# Copyright (C) 2015 Xiph.Org Foundation | ||
# | ||
# Redistribution and use in source and binary forms, with or without | ||
# modification, are permitted provided that the following conditions | ||
# are met: | ||
# | ||
# - Redistributions of source code must retain the above copyright | ||
# notice, this list of conditions and the following disclaimer. | ||
# | ||
# - Redistributions in binary form must reproduce the above copyright | ||
# notice, this list of conditions and the following disclaimer in the | ||
# documentation and/or other materials provided with the distribution. | ||
# | ||
# - Neither the name of the Xiph.org Foundation nor the names of its | ||
# contributors may be used to endorse or promote products derived from | ||
# this software without specific prior written permission. | ||
# | ||
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR | ||
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | ||
# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | ||
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | ||
# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | ||
# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | ||
# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | ||
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
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AM_CPPFLAGS = -I$(top_srcdir)/include -I$(top_srcdir)/src/libFLAC/include | ||
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noinst_PROGRAMS = benchmark_residual | ||
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benchmark_residual_SOURCES = benchmark_residual.c util.c |
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/* libFLAC - Free Lossless Audio Codec library | ||
* Copyright (C) 2000-2009 Josh Coalson | ||
* Copyright (C) 2011-2014 Xiph.Org Foundation | ||
* | ||
* Redistribution and use in source and binary forms, with or without | ||
* modification, are permitted provided that the following conditions | ||
* are met: | ||
* | ||
* - Redistributions of source code must retain the above copyright | ||
* notice, this list of conditions and the following disclaimer. | ||
* | ||
* - Redistributions in binary form must reproduce the above copyright | ||
* notice, this list of conditions and the following disclaimer in the | ||
* documentation and/or other materials provided with the distribution. | ||
* | ||
* - Neither the name of the Xiph.org Foundation nor the names of its | ||
* contributors may be used to endorse or promote products derived from | ||
* this software without specific prior written permission. | ||
* | ||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR | ||
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | ||
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | ||
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | ||
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | ||
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | ||
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | ||
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
*/ | ||
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#ifdef HAVE_CONFIG_H | ||
# include <config.h> | ||
#endif | ||
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#include <stdio.h> | ||
#include <math.h> | ||
#include <string.h> | ||
#include "FLAC/ordinals.h" | ||
#include "share/compat.h" | ||
#include "private/bitmath.h" | ||
#include "private/fixed.h" | ||
#include "private/macros.h" | ||
#include "FLAC/assert.h" | ||
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#include "util.h" | ||
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static void FLAC__fixed_compute_residual_shift(const FLAC__int32 data[], unsigned data_len, unsigned order, FLAC__int32 residual[]) | ||
{ | ||
const int idata_len = (int) data_len; | ||
int i; | ||
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switch(order) { | ||
case 0: | ||
FLAC__ASSERT(sizeof(residual[0]) == sizeof(data[0])); | ||
memcpy(residual, data, sizeof(residual[0])*data_len); | ||
break; | ||
case 1: | ||
for(i = 0; i < idata_len; i++) | ||
residual[i] = data[i] - data[i-1]; | ||
break; | ||
case 2: | ||
for(i = 0; i < idata_len; i++) | ||
residual[i] = data[i] - (data[i-1] << 1) + data[i-2]; | ||
break; | ||
case 3: | ||
for(i = 0; i < idata_len; i++) | ||
residual[i] = data[i] - (((data[i-1]-data[i-2])<<1) + (data[i-1]-data[i-2])) - data[i-3]; | ||
break; | ||
case 4: | ||
for(i = 0; i < idata_len; i++) | ||
residual[i] = data[i] - ((data[i-1]+data[i-3])<<2) + ((data[i-2]<<2) + (data[i-2]<<1)) + data[i-4]; | ||
break; | ||
default: | ||
FLAC__ASSERT(0); | ||
} | ||
} | ||
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static void FLAC__fixed_compute_residual_mult(const FLAC__int32 data[], unsigned data_len, unsigned order, FLAC__int32 residual[]) | ||
{ | ||
const int idata_len = (int)data_len; | ||
int i; | ||
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switch(order) { | ||
case 0: | ||
FLAC__ASSERT(sizeof(residual[0]) == sizeof(data[0])); | ||
memcpy(residual, data, sizeof(residual[0])*data_len); | ||
break; | ||
case 1: | ||
for(i = 0; i < idata_len; i++) | ||
residual[i] = data[i] - data[i-1]; | ||
break; | ||
case 2: | ||
for(i = 0; i < idata_len; i++) | ||
residual[i] = data[i] - 2*data[i-1] + data[i-2]; | ||
break; | ||
case 3: | ||
for(i = 0; i < idata_len; i++) | ||
residual[i] = data[i] - 3*data[i-1] + 3*data[i-2] - data[i-3]; | ||
break; | ||
case 4: | ||
for(i = 0; i < idata_len; i++) | ||
residual[i] = data[i] - 4*data[i-1] + 6*data[i-2] - 4*data[i-3] + data[i-4]; | ||
break; | ||
default: | ||
FLAC__ASSERT(0); | ||
} | ||
} | ||
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static FLAC__int32 data [200000] ; | ||
static FLAC__int32 residual [200000] ; | ||
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static unsigned bench_order = 0 ; | ||
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static void | ||
bench_shift (void) | ||
{ FLAC__fixed_compute_residual_shift (data, ARRAY_LEN (data), bench_order, residual) ; | ||
} | ||
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static void | ||
bench_mult (void) | ||
{ FLAC__fixed_compute_residual_mult (data, ARRAY_LEN (data), bench_order, residual) ; | ||
} | ||
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int | ||
main (void) | ||
{ bench_stats stats ; | ||
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puts ("") ; | ||
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for (bench_order = 2 ; bench_order <= 4 ; bench_order ++) { | ||
memset (&stats, 0, sizeof (stats)) ; | ||
stats.testfunc = bench_shift ; | ||
stats.run_count = 100 ; | ||
stats.loop_count = 10 ; | ||
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benchmark_stats (&stats) ; | ||
printf ("shift order %u : %f %f %f %f\n", bench_order, stats.min_time, stats.median_time, stats.mean_time, stats.max_time) ; | ||
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memset (&stats, 0, sizeof (stats)) ; | ||
stats.testfunc = bench_mult ; | ||
stats.run_count = 100 ; | ||
stats.loop_count = 10 ; | ||
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benchmark_stats (&stats) ; | ||
printf ("mult order %u : %f %f %f %f\n\n", bench_order, stats.min_time, stats.median_time, stats.mean_time, stats.max_time) ; | ||
} | ||
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return 0 ; | ||
} |
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/* FLAC - Free Lossless Audio Codec | ||
* Copyright (C) 2015 Xiph.Org Foundation | ||
* | ||
* Redistribution and use in source and binary forms, with or without | ||
* modification, are permitted provided that the following conditions | ||
* are met: | ||
* | ||
* - Redistributions of source code must retain the above copyright | ||
* notice, this list of conditions and the following disclaimer. | ||
* | ||
* - Redistributions in binary form must reproduce the above copyright | ||
* notice, this list of conditions and the following disclaimer in the | ||
* documentation and/or other materials provided with the distribution. | ||
* | ||
* - Neither the name of the Xiph.org Foundation nor the names of its | ||
* contributors may be used to endorse or promote products derived from | ||
* this software without specific prior written permission. | ||
* | ||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR | ||
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | ||
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | ||
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | ||
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | ||
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | ||
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | ||
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
*/ | ||
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#define _GNU_SOURCE | ||
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#include <stdlib.h> | ||
#include <time.h> | ||
#include <sys/time.h> | ||
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#include "util.h" | ||
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static double | ||
timespec_diff (const struct timespec * start, const struct timespec * end) | ||
{ struct timespec difftime; | ||
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if (end->tv_nsec - start->tv_nsec < 0) | ||
{ difftime.tv_sec = end->tv_sec - start->tv_sec - 1 ; | ||
difftime.tv_nsec = 1000000000 + end->tv_nsec - start->tv_nsec ; | ||
} | ||
else | ||
{ difftime.tv_sec = end->tv_sec - start->tv_sec ; | ||
difftime.tv_nsec = end->tv_nsec-start->tv_nsec ; | ||
} ; | ||
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return difftime.tv_sec + 1e-9 * difftime.tv_nsec ; | ||
} | ||
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double | ||
benchmark_function (void (*testfunc) (void), unsigned count) | ||
{ struct timespec start, end; | ||
unsigned k ; | ||
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clock_gettime (CLOCK_PROCESS_CPUTIME_ID, &start) ; | ||
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for (k = 0 ; k < count ; k++) | ||
testfunc () ; | ||
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clock_gettime (CLOCK_PROCESS_CPUTIME_ID, &end) ; | ||
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return timespec_diff (&start, &end) / count ; | ||
} /* benchmark_function */ | ||
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static int | ||
double_cmp (const void * a, const void * b) | ||
{ const double * pa = (double *) a ; | ||
const double * pb = (double *) b ; | ||
return pa [0] < pb [0] ; | ||
} /* double_cmp */ | ||
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void | ||
benchmark_stats (bench_stats * stats) | ||
{ double sum, times [stats->run_count] ; | ||
unsigned k ; | ||
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for (k = 0 ; k < stats->run_count ; k++) | ||
times [k] = benchmark_function (stats->testfunc, stats->loop_count) ; | ||
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qsort (times, stats->run_count, sizeof (times [0]), double_cmp) ; | ||
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sum = 0.0 ; | ||
stats->min_time = stats->max_time = times [0] ; | ||
for (k = 0 ; k < stats->run_count ; k++) | ||
{ stats->min_time = stats->min_time < times [k] ? stats->min_time : times [k] ; | ||
stats->max_time = stats->max_time > times [k] ? stats->max_time : times [k] ; | ||
sum += times [k] ; | ||
} | ||
stats->mean_time = sum / stats->run_count ; | ||
if (stats->run_count & 1) | ||
stats->median_time = times [(stats->run_count + 1) / 2] ; | ||
else | ||
stats->median_time = 0.5 * (times [stats->run_count / 2] + times [(stats->run_count / 2) + 1]) ; | ||
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return ; | ||
} /* benchmark_stats */ |
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@@ -0,0 +1,43 @@ | ||
/* FLAC - Free Lossless Audio Codec | ||
* Copyright (C) 2015 Xiph.Org Foundation | ||
* | ||
* Redistribution and use in source and binary forms, with or without | ||
* modification, are permitted provided that the following conditions | ||
* are met: | ||
* | ||
* - Redistributions of source code must retain the above copyright | ||
* notice, this list of conditions and the following disclaimer. | ||
* | ||
* - Redistributions in binary form must reproduce the above copyright | ||
* notice, this list of conditions and the following disclaimer in the | ||
* documentation and/or other materials provided with the distribution. | ||
* | ||
* - Neither the name of the Xiph.org Foundation nor the names of its | ||
* contributors may be used to endorse or promote products derived from | ||
* this software without specific prior written permission. | ||
* | ||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR | ||
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | ||
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | ||
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | ||
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | ||
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | ||
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | ||
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
*/ | ||
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#define ARRAY_LEN(x) ((sizeof (x) / sizeof (x [0]))) | ||
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typedef struct bench_stats | ||
{ void (*testfunc) (void) ; | ||
unsigned run_count ; | ||
unsigned loop_count ; | ||
double min_time, mean_time, median_time, max_time ; | ||
} bench_stats ; | ||
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double benchmark_function (void (*testfunc) (void), unsigned count) ; | ||
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void benchmark_stats (bench_stats * stats) ; |