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271 lines
7 KiB
C++
271 lines
7 KiB
C++
/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
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// vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4:
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#ident "$Id$"
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/*======
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This file is part of PerconaFT.
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Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved.
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PerconaFT is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2,
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as published by the Free Software Foundation.
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PerconaFT 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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You should have received a copy of the GNU General Public License
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along with PerconaFT. If not, see <http://www.gnu.org/licenses/>.
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----------------------------------------
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PerconaFT is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License, version 3,
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as published by the Free Software Foundation.
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PerconaFT 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 Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with PerconaFT. If not, see <http://www.gnu.org/licenses/>.
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======= */
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#ident "Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved."
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#include <stdio.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <string.h>
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#include <stdlib.h>
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#include "test.h"
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#include "toku_time.h"
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#include <portability/toku_path.h>
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int verbose = 0;
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static void
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create_files(int N, int fds[/*N*/]) {
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int r;
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int i;
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char name[30];
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for (i = 0; i < N; i++) {
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snprintf(name, sizeof(name), "%d", i);
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fds[i] = open(name, O_CREAT|O_WRONLY, 0644);
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if (fds[i] < 0) {
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r = get_error_errno();
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CKERR(r);
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}
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}
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}
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static void
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write_to_files(int N, int bytes, int fds[/*N*/]) {
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char junk[bytes];
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int i;
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for (i = 0; i < bytes; i++) {
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junk[i] = random() & 0xFF;
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}
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int r;
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for (i = 0; i < N; i++) {
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r = toku_os_write(fds[i], junk, bytes);
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CKERR(r);
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}
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}
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static void
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time_many_fsyncs_one_file(int N, int bytes, int fds[/*N*/]) {
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if (verbose>1) {
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printf("Starting %s\n", __FUNCTION__);
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fflush(stdout);
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}
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struct timeval begin;
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struct timeval after_first;
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struct timeval end;
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write_to_files(1, bytes, fds);
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if (verbose>1) {
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printf("Done writing to os buffers\n");
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fflush(stdout);
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}
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int i;
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int r;
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r = gettimeofday(&begin, NULL);
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CKERR(r);
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r = fsync(fds[0]);
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CKERR(r);
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r = gettimeofday(&after_first, NULL);
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CKERR(r);
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for (i = 0; i < N; i++) {
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r = fsync(fds[0]);
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CKERR(r);
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}
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r = gettimeofday(&end, NULL);
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CKERR(r);
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if (verbose) {
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printf("Fsyncing one file %d times:\n"
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"\tFirst fsync took: [%f] seconds\n"
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"\tRemaining %d fsyncs took additional: [%f] seconds\n"
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"\tTotal time [%f] seconds\n",
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N + 1,
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toku_tdiff(&after_first, &begin),
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N,
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toku_tdiff(&end, &after_first),
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toku_tdiff(&end, &begin));
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fflush(stdout);
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}
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}
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static void
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time_fsyncs_many_files(int N, int bytes, int fds[/*N*/]) {
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if (verbose>1) {
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printf("Starting %s\n", __FUNCTION__);
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fflush(stdout);
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}
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write_to_files(N, bytes, fds);
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if (verbose>1) {
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printf("Done writing to os buffers\n");
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fflush(stdout);
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}
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struct timeval begin;
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struct timeval after_first;
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struct timeval end;
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int i;
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int r;
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r = gettimeofday(&begin, NULL);
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CKERR(r);
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for (i = 0; i < N; i++) {
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r = fsync(fds[i]);
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CKERR(r);
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if (i==0) {
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r = gettimeofday(&after_first, NULL);
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CKERR(r);
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}
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if (verbose>2) {
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printf("Done fsyncing %d\n", i);
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fflush(stdout);
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}
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}
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r = gettimeofday(&end, NULL);
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CKERR(r);
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if (verbose) {
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printf("Fsyncing %d files:\n"
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"\tFirst fsync took: [%f] seconds\n"
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"\tRemaining %d fsyncs took additional: [%f] seconds\n"
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"\tTotal time [%f] seconds\n",
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N,
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toku_tdiff(&after_first, &begin),
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N-1,
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toku_tdiff(&end, &after_first),
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toku_tdiff(&end, &begin));
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fflush(stdout);
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}
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}
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static void
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time_sync_fsyncs_many_files(int N, int bytes, int fds[/*N*/]) {
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if (verbose>1) {
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printf("Starting %s\n", __FUNCTION__);
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fflush(stdout);
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}
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//TODO: timing
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write_to_files(N, bytes, fds);
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if (verbose>1) {
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printf("Done writing to os buffers\n");
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fflush(stdout);
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}
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int i;
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int r;
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struct timeval begin;
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struct timeval after_sync;
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struct timeval end;
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r = gettimeofday(&begin, NULL);
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CKERR(r);
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sync();
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r = gettimeofday(&after_sync, NULL);
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CKERR(r);
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if (verbose>1) {
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printf("Done with sync()\n");
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fflush(stdout);
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}
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for (i = 0; i < N; i++) {
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r = fsync(fds[i]);
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CKERR(r);
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if (verbose>2) {
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printf("Done fsyncing %d\n", i);
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fflush(stdout);
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}
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}
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r = gettimeofday(&end, NULL);
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CKERR(r);
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if (verbose) {
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printf("sync() then fsyncing %d files:\n"
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"\tsync() took: [%f] seconds\n"
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"\tRemaining %d fsyncs took additional: [%f] seconds\n"
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"\tTotal time [%f] seconds\n",
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N,
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toku_tdiff(&after_sync, &begin),
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N,
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toku_tdiff(&end, &after_sync),
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toku_tdiff(&end, &begin));
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fflush(stdout);
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}
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}
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int test_main(int argc, char *const argv[]) {
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int i;
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int r;
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int N = 1000;
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int bytes = 4096;
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for (i=1; i<argc; i++) {
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if (strcmp(argv[i], "-v") == 0) {
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if (verbose < 0) verbose = 0;
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verbose++;
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continue;
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}
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if (strcmp(argv[i], "-q") == 0) {
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verbose = 0;
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continue;
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}
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if (strcmp(argv[i], "-b") == 0) {
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i++;
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if (i>=argc) exit(1);
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bytes = atoi(argv[i]);
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if (bytes <= 0) exit(1);
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continue;
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}
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if (strcmp(argv[i], "-n") == 0) {
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i++;
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if (i>=argc) exit(1);
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N = atoi(argv[i]);
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if (N <= 0) exit(1);
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continue;
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}
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}
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toku_os_recursive_delete(TOKU_TEST_FILENAME);
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r = toku_os_mkdir(TOKU_TEST_FILENAME, S_IRWXU+S_IRWXG+S_IRWXO);
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CKERR(r);
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r = chdir(TOKU_TEST_FILENAME);
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CKERR(r);
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int fds[N];
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create_files(N, fds);
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time_many_fsyncs_one_file(N, bytes, fds);
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time_fsyncs_many_files(N, bytes, fds);
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time_sync_fsyncs_many_files(N, bytes, fds);
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return 0;
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}
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