mirror of
https://github.com/amadvance/snapraid.git
synced 2026-10-26 10:51:54 -04:00
278 lines
6.2 KiB
C
278 lines
6.2 KiB
C
/*
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* Copyright (C) 2011 Andrea Mazzoleni
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "portable.h"
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#include "snapraid.h"
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#include "util.h"
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#include "raid.h"
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#include "cpu.h"
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/**
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* Differential us of two timeval.
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*/
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static int64_t diffgettimeofday(struct timeval* start, struct timeval* stop)
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{
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return 1000000LL * (stop->tv_sec - start->tv_sec) + stop->tv_usec - start->tv_usec;
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}
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/**
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* Start time measurement.
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*/
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#define SPEED_START \
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count = 0; \
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gettimeofday(&start, 0); \
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do { \
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for(i=0;i<delta;++i)
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/**
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* Stop time measurement.
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*/
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#define SPEED_STOP \
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count += delta; \
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gettimeofday(&stop, 0); \
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} while (diffgettimeofday(&start, &stop) < 1000000LL); \
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ds = block_size * (int64_t)count * diskmax; \
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dt = diffgettimeofday(&start, &stop);
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void speed(void)
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{
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struct timeval start;
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struct timeval stop;
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int64_t ds;
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int64_t dt;
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unsigned i, j;
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unsigned char digest[HASH_SIZE];
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unsigned char seed[HASH_SIZE];
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unsigned count;
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unsigned delta = 100;
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unsigned block_size = 256 * 1024;
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unsigned diskmax = 8;
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void* buffer_alloc;
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unsigned char* buffer_aligned;
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unsigned char** buffer;
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buffer_aligned = malloc_nofail_align((diskmax + 2) * block_size, &buffer_alloc);
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buffer = malloc_nofail((diskmax + 2) * sizeof(void*));
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for(i=0;i<diskmax+2;++i) {
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buffer[i] = buffer_aligned + i * block_size;
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memset(buffer[i], i, block_size);
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}
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for(i=0;i<HASH_SIZE;++i)
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seed[i] = i;
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printf(PACKAGE " v" VERSION " by Andrea Mazzoleni, " PACKAGE_URL "\n");
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#ifdef __GNUC__
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printf("Compiler gcc " __VERSION__ "\n");
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#endif
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#if defined(__i386__) || defined(__x86_64__)
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{
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char vendor[CPU_VENDOR_MAX];
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unsigned family;
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unsigned model;
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cpu_info(vendor, &family, &model);
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printf("CPU %s, family %u, model %u, flags%s%s%s\n", vendor, family, model,
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cpu_has_mmx() ? " mmx" : "",
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cpu_has_sse2() ? " sse2" : "",
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cpu_has_slowmult() ? " slowmult" : ""
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);
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}
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#else
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printf("CPU is not a x86/x64\n");
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#endif
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#if WORDS_BIGENDIAN
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printf("Memory is big-endian %u-bit\n", (unsigned)sizeof(void*) * 8);
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#else
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printf("Memory is little-endian %u-bit\n", (unsigned)sizeof(void*) * 8);
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#endif
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printf("\n");
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printf("Expected fastest hash is ");
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#if defined(__i386__) || defined(__x86_64__)
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if (sizeof(void*) == 4 && !cpu_has_slowmult())
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printf("Murmur3");
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else
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printf("Spooky2");
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#else
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if (sizeof(void*) == 4)
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printf("Murmur3");
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else
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printf("Spooky2");
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#endif
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printf("\n");
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#if defined(__i386__) || defined(__x86_64__)
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printf("Expected fastest RAID5 is ");
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if (cpu_has_sse2())
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#if defined(__x86_64__)
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printf("sse2x8");
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#else
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printf("sse2x4");
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#endif
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else if (cpu_has_mmx())
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printf("mmxx4");
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else
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printf("int32x2");
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printf("\n");
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printf("Expected fastest RAID6 is ");
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if (cpu_has_sse2())
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#if defined(__x86_64__)
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printf("sse2x4");
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#else
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printf("sse2x2");
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#endif
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else if (cpu_has_mmx())
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printf("mmxx2");
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else
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printf("int32x2");
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printf("\n");
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#endif
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printf("If these expectations are false, please report it in the SnapRAID forum\n");
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printf("\n");
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printf("Speed test with %d disk and %d buffer size, for a total of %u KiB...\n", diskmax, block_size, (diskmax + 2) * block_size / 1024);
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SPEED_START {
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for(j=0;j<diskmax;++j) {
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memset(buffer[j], j, block_size);
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}
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} SPEED_STOP
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printf("memset0 %"PRIu64" [MB/s]\n", ds / dt);
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SPEED_START {
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for(j=0;j<diskmax;++j) {
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crc32c_gen(0, buffer[j], block_size);
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}
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} SPEED_STOP
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printf("CRC table %"PRIu64" [MB/s]\n", ds / dt);
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#if defined(__i386__) || defined(__x86_64__)
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if (cpu_has_sse42()) {
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SPEED_START {
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for(j=0;j<diskmax;++j) {
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crc32c_x86(0, buffer[j], block_size);
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}
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} SPEED_STOP
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printf("CRC intel-crc32 %"PRIu64" [MB/s]\n", ds / dt);
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}
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#endif
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SPEED_START {
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for(j=0;j<diskmax;++j) {
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memhash(HASH_MURMUR3, seed, digest, buffer[j], block_size);
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}
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} SPEED_STOP
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printf("HASH Murmur3 %"PRIu64" [MB/s]\n", ds / dt);
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SPEED_START {
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for(j=0;j<diskmax;++j) {
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memhash(HASH_SPOOKY2, seed, digest, buffer[j], block_size);
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}
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} SPEED_STOP
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printf("HASH Spooky2 %"PRIu64" [MB/s]\n", ds / dt);
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SPEED_START {
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raid5_int32r2(buffer, diskmax, block_size);
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} SPEED_STOP
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printf("RAID5 int32x2 %"PRIu64" [MB/s]\n", ds / dt);
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#if defined(__i386__) || defined(__x86_64__)
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if (cpu_has_mmx()) {
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SPEED_START {
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raid5_mmxr2(buffer, diskmax, block_size);
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} SPEED_STOP
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printf("RAID5 mmxx2 %"PRIu64" [MB/s]\n", ds / dt);
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SPEED_START {
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raid5_mmxr4(buffer, diskmax, block_size);
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} SPEED_STOP
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printf("RAID5 mmxx4 %"PRIu64" [MB/s]\n", ds / dt);
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}
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if (cpu_has_sse2()) {
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SPEED_START {
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raid5_sse2r2(buffer, diskmax, block_size);
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} SPEED_STOP
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printf("RAID5 sse2x2 %"PRIu64" [MB/s]\n", ds / dt);
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SPEED_START {
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raid5_sse2r4(buffer, diskmax, block_size);
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} SPEED_STOP
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printf("RAID5 sse2x4 %"PRIu64" [MB/s]\n", ds / dt);
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#if defined(__x86_64__)
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SPEED_START {
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raid5_sse2r8(buffer, diskmax, block_size);
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} SPEED_STOP
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printf("RAID5 sse2x8 %"PRIu64" [MB/s]\n", ds / dt);
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#endif
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}
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#endif
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SPEED_START {
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raid6_int32r2(buffer, diskmax, block_size);
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} SPEED_STOP
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printf("RAID6 int32x2 %"PRIu64" [MB/s]\n", ds / dt);
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#if defined(__i386__) || defined(__x86_64__)
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if (cpu_has_mmx()) {
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SPEED_START {
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raid6_mmxr2(buffer, diskmax, block_size);
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} SPEED_STOP
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printf("RAID6 mmxx2 %"PRIu64" [MB/s]\n", ds / dt);
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}
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if (cpu_has_sse2()) {
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SPEED_START {
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raid6_sse2r2(buffer, diskmax, block_size);
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} SPEED_STOP
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printf("RAID6 sse2x2 %"PRIu64" [MB/s]\n", ds / dt);
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#if defined(__x86_64__)
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SPEED_START {
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raid6_sse2r4(buffer, diskmax, block_size);
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} SPEED_STOP
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printf("RAID6 sse2x4 %"PRIu64" [MB/s]\n", ds / dt);
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#endif
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}
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#endif
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free(buffer_alloc);
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free(buffer);
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}
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