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wheremyfoodat 2023-06-14 14:46:11 +03:00
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third_party/xxhash/tests/bench/bhDisplay.c vendored Normal file
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/*
* CSV Display module for the hash benchmark program
* Part of the xxHash project
* Copyright (C) 2019-2021 Yann Collet
*
* GPL v2 License
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* You can contact the author at :
* - xxHash homepage : https://www.xxhash.com
* - xxHash source repository : https://github.com/Cyan4973/xxHash
*/
/* === Dependencies === */
#include <stdlib.h> /* rand */
#include <stdio.h> /* printf */
#include <assert.h>
#include "benchHash.h"
#include "bhDisplay.h"
/* === benchmark large input === */
#define MB_UNIT 1000000
#define BENCH_LARGE_ITER_MS 490
#define BENCH_LARGE_TOTAL_MS 1010
static void bench_oneHash_largeInput(Bench_Entry hashDesc, int minlog, int maxlog)
{
printf("%-7s", hashDesc.name);
for (int sizelog=minlog; sizelog<=maxlog; sizelog++) {
size_t const inputSize = (size_t)1 << sizelog;
double const nbhps = bench_hash(hashDesc.hash, BMK_throughput,
inputSize, BMK_fixedSize,
BENCH_LARGE_TOTAL_MS, BENCH_LARGE_ITER_MS);
printf(",%6.0f", nbhps * inputSize / MB_UNIT); fflush(NULL);
}
printf("\n");
}
void bench_largeInput(Bench_Entry const* hashDescTable, int nbHashes, int minlog, int maxlog)
{
assert(maxlog < 31);
assert(minlog >= 0);
printf("benchmarking large inputs : from %u bytes (log%i) to %u MB (log%i) \n",
1U << minlog, minlog,
(1U << maxlog) >> 20, maxlog);
for (int i=0; i<nbHashes; i++)
bench_oneHash_largeInput(hashDescTable[i], minlog, maxlog);
}
/* === Benchmark small inputs === */
#define BENCH_SMALL_ITER_MS 170
#define BENCH_SMALL_TOTAL_MS 490
static void bench_throughput_oneHash_smallInputs(Bench_Entry hashDesc, size_t sizeMin, size_t sizeMax)
{
printf("%-7s", hashDesc.name);
for (size_t s=sizeMin; s<sizeMax+1; s++) {
double const nbhps = bench_hash(hashDesc.hash, BMK_throughput,
s, BMK_fixedSize,
BENCH_SMALL_TOTAL_MS, BENCH_SMALL_ITER_MS);
printf(",%10.0f", nbhps); fflush(NULL);
}
printf("\n");
}
void bench_throughput_smallInputs(Bench_Entry const* hashDescTable, int nbHashes, size_t sizeMin, size_t sizeMax)
{
printf("Throughput small inputs of fixed size (from %zu to %zu bytes): \n",
sizeMin, sizeMax);
for (int i=0; i<nbHashes; i++)
bench_throughput_oneHash_smallInputs(hashDescTable[i], sizeMin, sizeMax);
}
/* === Latency measurements (small keys) === */
static void bench_latency_oneHash_smallInputs(Bench_Entry hashDesc, size_t size_min, size_t size_max)
{
printf("%-7s", hashDesc.name);
for (size_t s=size_min; s<size_max+1; s++) {
double const nbhps = bench_hash(hashDesc.hash, BMK_latency,
s, BMK_fixedSize,
BENCH_SMALL_TOTAL_MS, BENCH_SMALL_ITER_MS);
printf(",%10.0f", nbhps); fflush(NULL);
}
printf("\n");
}
void bench_latency_smallInputs(Bench_Entry const* hashDescTable, int nbHashes, size_t size_min, size_t size_max)
{
printf("Latency for small inputs of fixed size : \n");
for (int i=0; i<nbHashes; i++)
bench_latency_oneHash_smallInputs(hashDescTable[i], size_min, size_max);
}
/* === Random input Length === */
static void bench_randomInputLength_withOneHash(Bench_Entry hashDesc, size_t size_min, size_t size_max)
{
printf("%-7s", hashDesc.name);
for (size_t s=size_min; s<size_max+1; s++) {
srand((unsigned)s); /* ensure random sequence of length will be the same for a given s */
double const nbhps = bench_hash(hashDesc.hash, BMK_throughput,
s, BMK_randomSize,
BENCH_SMALL_TOTAL_MS, BENCH_SMALL_ITER_MS);
printf(",%10.0f", nbhps); fflush(NULL);
}
printf("\n");
}
void bench_throughput_randomInputLength(Bench_Entry const* hashDescTable, int nbHashes, size_t size_min, size_t size_max)
{
printf("benchmarking random size inputs [1-N] : \n");
for (int i=0; i<nbHashes; i++)
bench_randomInputLength_withOneHash(hashDescTable[i], size_min, size_max);
}
/* === Latency with Random input Length === */
static void bench_latency_oneHash_randomInputLength(Bench_Entry hashDesc, size_t size_min, size_t size_max)
{
printf("%-7s", hashDesc.name);
for (size_t s=size_min; s<size_max+1; s++) {
srand((unsigned)s); /* ensure random sequence of length will be the same for a given s */
double const nbhps = bench_hash(hashDesc.hash, BMK_latency,
s, BMK_randomSize,
BENCH_SMALL_TOTAL_MS, BENCH_SMALL_ITER_MS);
printf(",%10.0f", nbhps); fflush(NULL);
}
printf("\n");
}
void bench_latency_randomInputLength(Bench_Entry const* hashDescTable, int nbHashes, size_t size_min, size_t size_max)
{
printf("Latency for small inputs of random size [1-N] : \n");
for (int i=0; i<nbHashes; i++)
bench_latency_oneHash_randomInputLength(hashDescTable[i], size_min, size_max);
}