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memtier_benchmark.cpp
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/*
* Copyright (C) 2011-2017 Redis Labs Ltd.
*
* This file is part of memtier_benchmark.
*
* memtier_benchmark 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, version 2.
*
* memtier_benchmark 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 memtier_benchmark. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <pthread.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <limits.h>
#include <getopt.h>
#include <assert.h>
#include <errno.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <stdexcept>
#include "client.h"
#include "JSON_handler.h"
#include "obj_gen.h"
#include "memtier_benchmark.h"
static int log_level = 0;
void benchmark_log_file_line(int level, const char *filename, unsigned int line, const char *fmt, ...)
{
if (level > log_level)
return;
va_list args;
char fmtbuf[1024];
snprintf(fmtbuf, sizeof(fmtbuf)-1, "%s:%u: ", filename, line);
strcat(fmtbuf, fmt);
va_start(args, fmt);
vfprintf(stderr, fmtbuf, args);
va_end(args);
}
void benchmark_log(int level, const char *fmt, ...)
{
if (level > log_level)
return;
va_list args;
va_start(args, fmt);
vfprintf(stderr, fmt, args);
va_end(args);
}
static void config_print(FILE *file, struct benchmark_config *cfg)
{
char tmpbuf[512];
fprintf(file,
"server = %s\n"
"port = %u\n"
"unix socket = %s\n"
"protocol = %s\n"
"out_file = %s\n"
"client_stats = %s\n"
"run_count = %u\n"
"debug = %u\n"
"requests = %llu\n"
"clients = %u\n"
"threads = %u\n"
"test_time = %u\n"
"ratio = %u:%u\n"
"pipeline = %u\n"
"data_size = %u\n"
"data_offset = %u\n"
"random_data = %s\n"
"data_size_range = %u-%u\n"
"data_size_list = %s\n"
"data_size_pattern = %s\n"
"expiry_range = %u-%u\n"
"data_import = %s\n"
"data_verify = %s\n"
"verify_only = %s\n"
"generate_keys = %s\n"
"key_prefix = %s\n"
"key_minimum = %llu\n"
"key_maximum = %llu\n"
"key_pattern = %s\n"
"key_stddev = %f\n"
"key_median = %f\n"
"reconnect_interval = %u\n"
"multi_key_get = %u\n"
"authenticate = %s\n"
"select-db = %d\n"
"no-expiry = %s\n"
"wait-ratio = %u:%u\n"
"num-slaves = %u-%u\n"
"wait-timeout = %u-%u\n"
"json-out-file = %s\n",
cfg->server,
cfg->port,
cfg->unix_socket,
cfg->protocol,
cfg->out_file,
cfg->client_stats,
cfg->run_count,
cfg->debug,
cfg->requests,
cfg->clients,
cfg->threads,
cfg->test_time,
cfg->ratio.a, cfg->ratio.b,
cfg->pipeline,
cfg->data_size,
cfg->data_offset,
cfg->random_data ? "yes" : "no",
cfg->data_size_range.min, cfg->data_size_range.max,
cfg->data_size_list.print(tmpbuf, sizeof(tmpbuf)-1),
cfg->data_size_pattern,
cfg->expiry_range.min, cfg->expiry_range.max,
cfg->data_import,
cfg->data_verify ? "yes" : "no",
cfg->verify_only ? "yes" : "no",
cfg->generate_keys ? "yes" : "no",
cfg->key_prefix,
cfg->key_minimum,
cfg->key_maximum,
cfg->key_pattern,
cfg->key_stddev,
cfg->key_median,
cfg->reconnect_interval,
cfg->multi_key_get,
cfg->authenticate ? cfg->authenticate : "",
cfg->select_db,
cfg->no_expiry ? "yes" : "no",
cfg->wait_ratio.a, cfg->wait_ratio.b,
cfg->num_slaves.min, cfg->num_slaves.max,
cfg->wait_timeout.min, cfg->wait_timeout.max,
cfg->json_out_file);
}
static void config_print_to_json(json_handler * jsonhandler, struct benchmark_config *cfg)
{
char tmpbuf[512];
jsonhandler->open_nesting("configuration");
jsonhandler->write_obj("server" ,"\"%s\"", cfg->server);
jsonhandler->write_obj("port" ,"%u", cfg->port);
jsonhandler->write_obj("unix socket" ,"\"%s\"", cfg->unix_socket);
jsonhandler->write_obj("protocol" ,"\"%s\"", cfg->protocol);
jsonhandler->write_obj("out_file" ,"\"%s\"", cfg->out_file);
jsonhandler->write_obj("client_stats" ,"\"%s\"", cfg->client_stats);
jsonhandler->write_obj("run_count" ,"%u", cfg->run_count);
jsonhandler->write_obj("debug" ,"%u", cfg->debug);
jsonhandler->write_obj("requests" ,"%llu", cfg->requests);
jsonhandler->write_obj("clients" ,"%u", cfg->clients);
jsonhandler->write_obj("threads" ,"%u", cfg->threads);
jsonhandler->write_obj("test_time" ,"%u", cfg->test_time);
jsonhandler->write_obj("ratio" ,"\"%u:%u\"", cfg->ratio.a, cfg->ratio.b);
jsonhandler->write_obj("pipeline" ,"%u", cfg->pipeline);
jsonhandler->write_obj("data_size" ,"%u", cfg->data_size);
jsonhandler->write_obj("data_offset" ,"%u", cfg->data_offset);
jsonhandler->write_obj("random_data" ,"\"%s\"", cfg->random_data ? "true" : "false");
jsonhandler->write_obj("data_size_range" ,"\"%u:%u\"", cfg->data_size_range.min, cfg->data_size_range.max);
jsonhandler->write_obj("data_size_list" ,"\"%s\"", cfg->data_size_list.print(tmpbuf, sizeof(tmpbuf)-1));
jsonhandler->write_obj("data_size_pattern" ,"\"%s\"", cfg->data_size_pattern);
jsonhandler->write_obj("expiry_range" ,"\"%u:%u\"", cfg->expiry_range.min, cfg->expiry_range.max);
jsonhandler->write_obj("data_import" ,"\"%s\"", cfg->data_import);
jsonhandler->write_obj("data_verify" ,"\"%s\"", cfg->data_verify ? "true" : "false");
jsonhandler->write_obj("verify_only" ,"\"%s\"", cfg->verify_only ? "true" : "false");
jsonhandler->write_obj("generate_keys" ,"\"%s\"", cfg->generate_keys ? "true" : "false");
jsonhandler->write_obj("key_prefix" ,"\"%s\"", cfg->key_prefix);
jsonhandler->write_obj("key_minimum" ,"%11u", cfg->key_minimum);
jsonhandler->write_obj("key_maximum" ,"%11u", cfg->key_maximum);
jsonhandler->write_obj("key_pattern" ,"\"%s\"", cfg->key_pattern);
jsonhandler->write_obj("key_stddev" ,"%f", cfg->key_stddev);
jsonhandler->write_obj("key_median" ,"%f", cfg->key_median);
jsonhandler->write_obj("reconnect_interval","%u", cfg->reconnect_interval);
jsonhandler->write_obj("multi_key_get" ,"%u", cfg->multi_key_get);
jsonhandler->write_obj("authenticate" ,"\"%s\"", cfg->authenticate ? cfg->authenticate : "");
jsonhandler->write_obj("select-db" ,"%d", cfg->select_db);
jsonhandler->write_obj("no-expiry" ,"\"%s\"", cfg->no_expiry ? "true" : "false");
jsonhandler->write_obj("wait-ratio" ,"\"%u:%u\"", cfg->wait_ratio.a, cfg->wait_ratio.b);
jsonhandler->write_obj("num-slaves" ,"\"%u:%u\"", cfg->num_slaves.min, cfg->num_slaves.max);
jsonhandler->write_obj("wait-timeout" ,"\"%u-%u\"", cfg->wait_timeout.min, cfg->wait_timeout.max);
jsonhandler->close_nesting();
}
static void config_init_defaults(struct benchmark_config *cfg)
{
if (!cfg->server && !cfg->unix_socket)
cfg->server = "localhost";
if (!cfg->port && !cfg->unix_socket)
cfg->port = 6379;
if (!cfg->protocol)
cfg->protocol = "redis";
if (!cfg->run_count)
cfg->run_count = 1;
if (!cfg->clients)
cfg->clients = 50;
if (!cfg->threads)
cfg->threads = 4;
if (!cfg->ratio.is_defined())
cfg->ratio = config_ratio("1:10");
if (!cfg->pipeline)
cfg->pipeline = 1;
if (!cfg->data_size && !cfg->data_size_list.is_defined() && !cfg->data_size_range.is_defined() && !cfg->data_import)
cfg->data_size = 32;
if (cfg->generate_keys || !cfg->data_import) {
if (!cfg->key_prefix)
cfg->key_prefix = "memtier-";
if (!cfg->key_maximum)
cfg->key_maximum = 10000000;
}
if (!cfg->key_pattern)
cfg->key_pattern = "R:R";
if (!cfg->data_size_pattern)
cfg->data_size_pattern = "R";
if (cfg->requests == (unsigned long long)-1) {
cfg->requests = cfg->key_maximum - cfg->key_minimum;
if (strcmp(cfg->key_pattern, "P:P")==0)
cfg->requests = cfg->requests / (cfg->clients * cfg->threads) + 1;
printf("setting requests to %llu\n", cfg->requests);
}
if (!cfg->requests && !cfg->test_time)
cfg->requests = 10000;
}
static int generate_random_seed()
{
int R = 0;
FILE* f = fopen("/dev/random", "r");
if (f)
{
size_t ignore = fread(&R, sizeof(R), 1, f);
fclose(f);
ignore++;//ignore warning
}
return (int)time(NULL)^getpid()^R;
}
static bool verify_cluster_option(struct benchmark_config *cfg) {
if (cfg->reconnect_interval) {
fprintf(stderr, "error: cluster mode dose not support reconnect-interval option.\n");
return false;
} else if (cfg->multi_key_get) {
fprintf(stderr, "error: cluster mode dose not support multi-key-get option.\n");
return false;
} else if (cfg->wait_ratio.is_defined()) {
fprintf(stderr, "error: cluster mode dose not support wait-ratio option.\n");
return false;
} else if (cfg->protocol && strcmp(cfg->protocol, "redis")) {
fprintf(stderr, "error: cluster mode supported only in redis protocol.\n");
return false;
} else if (cfg->unix_socket) {
fprintf(stderr, "error: cluster mode dose not support unix-socket option.\n");
return false;
} else if (cfg->arbitrary_commands->is_defined()) {
fprintf(stderr, "error: cluster mode dose not support arbitrary command option.\n");
return false;
}
return true;
}
static bool verify_arbitrary_command_option(struct benchmark_config *cfg) {
if (cfg->key_pattern) {
fprintf(stderr, "error: when using arbitrary command, key pattern is configured with --command-key-pattern option.\n");
return false;
} else if (cfg->ratio.is_defined()) {
fprintf(stderr, "error: when using arbitrary command, ratio is configured with --command-ratio option.\n");
return false;
}
// verify that when using Parallel key pattern, it's configured to all commands
size_t parallel_count = 0;
for (size_t i = 0; i<cfg->arbitrary_commands->size(); i++) {
arbitrary_command& cmd = cfg->arbitrary_commands->at(i);
if (cmd.key_pattern == 'P') {
parallel_count++;
}
}
if (parallel_count > 0 && parallel_count != cfg->arbitrary_commands->size()) {
fprintf(stderr, "error: parallel key-pattern must be configured to all commands.\n");
return false;
}
return true;
}
static int config_parse_args(int argc, char *argv[], struct benchmark_config *cfg)
{
enum extended_options {
o_test_time = 128,
o_ratio,
o_pipeline,
o_data_size_range,
o_data_size_list,
o_data_size_pattern,
o_data_offset,
o_expiry_range,
o_data_import,
o_data_verify,
o_verify_only,
o_key_prefix,
o_key_minimum,
o_key_maximum,
o_key_pattern,
o_key_stddev,
o_key_median,
o_show_config,
o_hide_histogram,
o_distinct_client_seed,
o_randomize,
o_client_stats,
o_reconnect_interval,
o_generate_keys,
o_multi_key_get,
o_select_db,
o_no_expiry,
o_wait_ratio,
o_num_slaves,
o_wait_timeout,
o_json_out_file,
o_cluster_mode,
o_command,
o_command_key_pattern,
o_command_ratio
};
static struct option long_options[] = {
{ "server", 1, 0, 's' },
{ "port", 1, 0, 'p' },
{ "unix-socket", 1, 0, 'S' },
{ "protocol", 1, 0, 'P' },
{ "out-file", 1, 0, 'o' },
{ "client-stats", 1, 0, o_client_stats },
{ "run-count", 1, 0, 'x' },
{ "debug", 0, 0, 'D' },
{ "show-config", 0, 0, o_show_config },
{ "hide-histogram", 0, 0, o_hide_histogram },
{ "distinct-client-seed", 0, 0, o_distinct_client_seed },
{ "randomize", 0, 0, o_randomize },
{ "requests", 1, 0, 'n' },
{ "clients", 1, 0, 'c' },
{ "threads", 1, 0, 't' },
{ "test-time", 1, 0, o_test_time },
{ "ratio", 1, 0, o_ratio },
{ "pipeline", 1, 0, o_pipeline },
{ "data-size", 1, 0, 'd' },
{ "data-offset", 1, 0, o_data_offset },
{ "random-data", 0, 0, 'R' },
{ "data-size-range", 1, 0, o_data_size_range },
{ "data-size-list", 1, 0, o_data_size_list },
{ "data-size-pattern", 1, 0, o_data_size_pattern },
{ "expiry-range", 1, 0, o_expiry_range },
{ "data-import", 1, 0, o_data_import },
{ "data-verify", 0, 0, o_data_verify },
{ "verify-only", 0, 0, o_verify_only },
{ "generate-keys", 0, 0, o_generate_keys },
{ "key-prefix", 1, 0, o_key_prefix },
{ "key-minimum", 1, 0, o_key_minimum },
{ "key-maximum", 1, 0, o_key_maximum },
{ "key-pattern", 1, 0, o_key_pattern },
{ "key-stddev", 1, 0, o_key_stddev },
{ "key-median", 1, 0, o_key_median },
{ "reconnect-interval", 1, 0, o_reconnect_interval },
{ "multi-key-get", 1, 0, o_multi_key_get },
{ "authenticate", 1, 0, 'a' },
{ "select-db", 1, 0, o_select_db },
{ "no-expiry", 0, 0, o_no_expiry },
{ "wait-ratio", 1, 0, o_wait_ratio },
{ "num-slaves", 1, 0, o_num_slaves },
{ "wait-timeout", 1, 0, o_wait_timeout },
{ "json-out-file", 1, 0, o_json_out_file },
{ "cluster-mode", 0, 0, o_cluster_mode },
{ "help", 0, 0, 'h' },
{ "version", 0, 0, 'v' },
{ "command", 1, 0, o_command },
{ "command-key-pattern", 1, 0, o_command_key_pattern },
{ "command-ratio", 1, 0, o_command_ratio },
{ NULL, 0, 0, 0 }
};
int option_index;
int c;
char *endptr;
while ((c = getopt_long(argc, argv,
"s:S:p:P:o:x:DRn:c:t:d:a:h", long_options, &option_index)) != -1)
{
switch (c) {
case 'h':
return -1;
break;
case 'v':
puts(PACKAGE_STRING);
// FIXME!!
puts("Copyright (C) 2011-2017 Redis Labs Ltd.");
puts("This is free software. You may redistribute copies of it under the terms of");
puts("the GNU General Public License <http://www.gnu.org/licenses/gpl.html>.");
puts("There is NO WARRANTY, to the extent permitted by law.");
exit(0);
case 's':
cfg->server = optarg;
break;
case 'S':
cfg->unix_socket = optarg;
break;
case 'p':
endptr = NULL;
cfg->port = (unsigned short) strtoul(optarg, &endptr, 10);
if (!cfg->port || cfg->port > 65535 || !endptr || *endptr != '\0') {
fprintf(stderr, "error: port must be a number in the range [1-65535].\n");
return -1;
}
break;
case 'P':
if (strcmp(optarg, "memcache_text") &&
strcmp(optarg, "memcache_binary") &&
strcmp(optarg, "redis")) {
fprintf(stderr, "error: supported protocols are 'memcache_text', 'memcache_binary' and 'redis'.\n");
return -1;
}
cfg->protocol = optarg;
break;
case 'o':
cfg->out_file = optarg;
break;
case o_client_stats:
cfg->client_stats = optarg;
break;
case 'x':
endptr = NULL;
cfg->run_count = (unsigned int) strtoul(optarg, &endptr, 10);
if (!cfg->run_count || !endptr || *endptr != '\0') {
fprintf(stderr, "error: run count must be greater than zero.\n");
return -1;
}
break;
case 'D':
cfg->debug++;
break;
case o_show_config:
cfg->show_config++;
break;
case o_hide_histogram:
cfg->hide_histogram++;
break;
case o_distinct_client_seed:
cfg->distinct_client_seed++;
break;
case o_randomize:
srandom(generate_random_seed());
cfg->randomize = random();
break;
case 'n':
endptr = NULL;
if (strcmp(optarg, "allkeys")==0)
cfg->requests = -1;
else {
cfg->requests = (unsigned long long) strtoull(optarg, &endptr, 10);
if (!cfg->requests || !endptr || *endptr != '\0') {
fprintf(stderr, "error: requests must be greater than zero.\n");
return -1;
}
if (cfg->test_time) {
fprintf(stderr, "error: --test-time and --requests are mutually exclusive.\n");
return -1;
}
}
break;
case 'c':
endptr = NULL;
cfg->clients = (unsigned int) strtoul(optarg, &endptr, 10);
if (!cfg->clients || !endptr || *endptr != '\0') {
fprintf(stderr, "error: clients must be greater than zero.\n");
return -1;
}
break;
case 't':
endptr = NULL;
cfg->threads = (unsigned int) strtoul(optarg, &endptr, 10);
if (!cfg->threads || !endptr || *endptr != '\0') {
fprintf(stderr, "error: threads must be greater than zero.\n");
return -1;
}
break;
case o_test_time:
endptr = NULL;
cfg->test_time = (unsigned int) strtoul(optarg, &endptr, 10);
if (!cfg->test_time || !endptr || *endptr != '\0') {
fprintf(stderr, "error: test time must be greater than zero.\n");
return -1;
}
if (cfg->requests) {
fprintf(stderr, "error: --test-time and --requests are mutually exclusive.\n");
return -1;
}
break;
case o_ratio:
cfg->ratio = config_ratio(optarg);
if (!cfg->ratio.is_defined()) {
fprintf(stderr, "error: ratio must be expressed as [0-n]:[0-n].\n");
return -1;
}
break;
case o_pipeline:
endptr = NULL;
cfg->pipeline = (unsigned int) strtoul(optarg, &endptr, 10);
if (!cfg->pipeline || !endptr || *endptr != '\0') {
fprintf(stderr, "error: pipeline must be greater than zero.\n");
return -1;
}
break;
case 'd':
endptr = NULL;
cfg->data_size = (unsigned int) strtoul(optarg, &endptr, 10);
if (!cfg->data_size || !endptr || *endptr != '\0') {
fprintf(stderr, "error: data-size must be greater than zero.\n");
return -1;
}
break;
case 'R':
cfg->random_data = true;
break;
case o_data_offset:
endptr = NULL;
cfg->data_offset = (unsigned int) strtoul(optarg, &endptr, 10);
if (!endptr || *endptr != '\0') {
fprintf(stderr, "error: data-offset must be greater than or equal to zero.\n");
return -1;
}
break;
case o_data_size_range:
cfg->data_size_range = config_range(optarg);
if (!cfg->data_size_range.is_defined() || cfg->data_size_range.min < 1) {
fprintf(stderr, "error: data-size-range must be expressed as [1-n]-[1-n].\n");
return -1;
}
break;
case o_data_size_list:
cfg->data_size_list = config_weight_list(optarg);
if (!cfg->data_size_list.is_defined()) {
fprintf(stderr, "error: data-size-list must be expressed as [size1:weight1],...[sizeN:weightN].\n");
return -1;
}
break;
case o_expiry_range:
cfg->expiry_range = config_range(optarg);
if (!cfg->expiry_range.is_defined()) {
fprintf(stderr, "error: data-size-range must be expressed as [0-n]-[1-n].\n");
return -1;
}
break;
case o_data_size_pattern:
cfg->data_size_pattern = optarg;
if (strlen(cfg->data_size_pattern) != 1 ||
(cfg->data_size_pattern[0] != 'R' && cfg->data_size_pattern[0] != 'S')) {
fprintf(stderr, "error: data-size-pattern must be either R or S.\n");
return -1;
}
break;
case o_data_import:
cfg->data_import = optarg;
break;
case o_data_verify:
cfg->data_verify = 1;
break;
case o_verify_only:
cfg->verify_only = 1;
cfg->data_verify = 1; // Implied
break;
case o_key_prefix:
cfg->key_prefix = optarg;
break;
case o_key_minimum:
endptr = NULL;
cfg->key_minimum = strtoull(optarg, &endptr, 10);
if (cfg->key_minimum < 1 || !endptr || *endptr != '\0') {
fprintf(stderr, "error: key-minimum must be greater than zero.\n");
return -1;
}
break;
case o_key_maximum:
endptr = NULL;
cfg->key_maximum = strtoull(optarg, &endptr, 10);
if (cfg->key_maximum< 1 || !endptr || *endptr != '\0') {
fprintf(stderr, "error: key-maximum must be greater than zero.\n");
return -1;
}
break;
case o_key_stddev:
endptr = NULL;
cfg->key_stddev = (unsigned int) strtof(optarg, &endptr);
if (cfg->key_stddev<= 0 || !endptr || *endptr != '\0') {
fprintf(stderr, "error: key-stddev must be greater than zero.\n");
return -1;
}
break;
case o_key_median:
endptr = NULL;
cfg->key_median = (unsigned int) strtof(optarg, &endptr);
if (cfg->key_median<= 0 || !endptr || *endptr != '\0') {
fprintf(stderr, "error: key-median must be greater than zero.\n");
return -1;
}
break;
case o_key_pattern:
cfg->key_pattern = optarg;
if (strlen(cfg->key_pattern) != 3 || cfg->key_pattern[key_pattern_delimiter] != ':' ||
(cfg->key_pattern[key_pattern_set] != 'R' &&
cfg->key_pattern[key_pattern_set] != 'S' &&
cfg->key_pattern[key_pattern_set] != 'G' &&
cfg->key_pattern[key_pattern_set] != 'P') ||
(cfg->key_pattern[key_pattern_get] != 'R' &&
cfg->key_pattern[key_pattern_get] != 'S' &&
cfg->key_pattern[key_pattern_get] != 'G' &&
cfg->key_pattern[key_pattern_get] != 'P')) {
fprintf(stderr, "error: key-pattern must be in the format of [S/R/G/P]:[S/R/G/P].\n");
return -1;
}
if ((cfg->key_pattern[key_pattern_set] == 'P' ||
cfg->key_pattern[key_pattern_get] == 'P') &&
(cfg->key_pattern[key_pattern_set] != cfg->key_pattern[key_pattern_get])) {
fprintf(stderr, "error: parallel key-pattern must be configured for both SET and GET commands.\n");
return -1;
}
break;
case o_reconnect_interval:
endptr = NULL;
cfg->reconnect_interval = (unsigned int) strtoul(optarg, &endptr, 10);
if (!cfg->reconnect_interval || !endptr || *endptr != '\0') {
fprintf(stderr, "error: reconnect-interval must be greater than zero.\n");
return -1;
}
break;
case o_generate_keys:
cfg->generate_keys = 1;
break;
case o_multi_key_get:
endptr = NULL;
cfg->multi_key_get = (unsigned int) strtoul(optarg, &endptr, 10);
if (cfg->multi_key_get <= 0 || !endptr || *endptr != '\0') {
fprintf(stderr, "error: multi-key-get must be greater than zero.\n");
return -1;
}
break;
case 'a':
cfg->authenticate = optarg;
break;
case o_select_db:
cfg->select_db = (int) strtoul(optarg, &endptr, 10);
if (cfg->select_db < 0 || !endptr || *endptr != '\0') {
fprintf(stderr, "error: select-db must be greater or equal zero.\n");
return -1;
}
break;
case o_no_expiry:
cfg->no_expiry = true;
break;
case o_wait_ratio:
cfg->wait_ratio = config_ratio(optarg);
if (!cfg->wait_ratio.is_defined()) {
fprintf(stderr, "error: wait-ratio must be expressed as [0-n]:[0-n].\n");
return -1;
}
break;
case o_num_slaves:
cfg->num_slaves = config_range(optarg);
if (!cfg->num_slaves.is_defined()) {
fprintf(stderr, "error: num-slaves must be expressed as [0-n]-[1-n].\n");
return -1;
}
break;
case o_wait_timeout:
cfg->wait_timeout = config_range(optarg);
if (!cfg->wait_timeout.is_defined()) {
fprintf(stderr, "error: wait-timeout must be expressed as [0-n]-[1-n].\n");
return -1;
}
break;
case o_json_out_file:
cfg->json_out_file = optarg;
break;
case o_cluster_mode:
cfg->cluster_mode = true;
break;
case o_command: {
// add new arbitrary command
arbitrary_command cmd(optarg);
if (cmd.split_command_to_args()) {
cfg->arbitrary_commands->add_command(cmd);
} else {
fprintf(stderr, "error: failed to parse arbitrary command.\n");
return -1;
}
break;
}
case o_command_key_pattern: {
if (cfg->arbitrary_commands->size() == 0) {
fprintf(stderr, "error: no arbitrary command found.\n");
return -1;
}
// command configuration always applied on last configured command
arbitrary_command& cmd = cfg->arbitrary_commands->get_last_command();
if (!cmd.set_key_pattern(optarg)) {
fprintf(stderr, "error: key-pattern for command %s must be in the format of [S/R/G/P].\n", cmd.command_name.c_str());
return -1;
}
break;
}
case o_command_ratio: {
if (cfg->arbitrary_commands->size() == 0) {
fprintf(stderr, "error: no arbitrary command found.\n");
return -1;
}
// command configuration always applied on last configured command
arbitrary_command& cmd = cfg->arbitrary_commands->get_last_command();
if (!cmd.set_ratio(optarg)) {
fprintf(stderr, "error: failed to set ratio for command %s.\n", cmd.command_name.c_str());
return -1;
}
break;
}
default:
return -1;
break;
}
}
if ((cfg->cluster_mode && !verify_cluster_option(cfg)) ||
(cfg->arbitrary_commands->is_defined() && !verify_arbitrary_command_option(cfg))) {
return -1;
}
return 0;
}
void usage() {
fprintf(stdout, "Usage: memtier_benchmark [options]\n"
"A memcache/redis NoSQL traffic generator and performance benchmarking tool.\n"
"\n"
"Connection and General Options:\n"
" -s, --server=ADDR Server address (default: localhost)\n"
" -p, --port=PORT Server port (default: 6379)\n"
" -S, --unix-socket=SOCKET UNIX Domain socket name (default: none)\n"
" -P, --protocol=PROTOCOL Protocol to use (default: redis). Other\n"
" supported protocols are memcache_text,\n"
" memcache_binary.\n"
" -a, --authenticate=CREDENTIALS Authenticate to redis using CREDENTIALS, which depending\n"
" on the protocol can be PASSWORD or USER:PASSWORD.\n"
" -x, --run-count=NUMBER Number of full-test iterations to perform\n"
" -D, --debug Print debug output\n"
" --client-stats=FILE Produce per-client stats file\n"
" --out-file=FILE Name of output file (default: stdout)\n"
" --json-out-file=FILE Name of JSON output file, if not set, will not print to json\n"
" --show-config Print detailed configuration before running\n"
" --hide-histogram Don't print detailed latency histogram\n"
" --cluster-mode Run client in cluster mode\n"
" --help Display this help\n"
" --version Display version information\n"
"\n"
"Test Options:\n"
" -n, --requests=NUMBER Number of total requests per client (default: 10000)\n"
" use 'allkeys' to run on the entire key-range\n"
" -c, --clients=NUMBER Number of clients per thread (default: 50)\n"
" -t, --threads=NUMBER Number of threads (default: 4)\n"
" --test-time=SECS Number of seconds to run the test\n"
" --ratio=RATIO Set:Get ratio (default: 1:10)\n"
" --pipeline=NUMBER Number of concurrent pipelined requests (default: 1)\n"
" --reconnect-interval=NUM Number of requests after which re-connection is performed\n"
" --multi-key-get=NUM Enable multi-key get commands, up to NUM keys (default: 0)\n"
" --select-db=DB DB number to select, when testing a redis server\n"
" --distinct-client-seed Use a different random seed for each client\n"
" --randomize random seed based on timestamp (default is constant value)\n"
"\n"
"Arbitrary command:\n"
" --command=COMMAND Specify a command to send in quotes.\n"
" Each command that you specify is run with its ratio and key-pattern options.\n"
" For example: --command=\"set __key__ 5\" --command-ratio=2 --command-key-pattern=G\n"
" To use a generated key or object, enter:\n"
" __key__: Use key generated from Key Options.\n"
" __data__: Use data generated from Object Options.\n"
" --command-ratio The number of times the command is sent in sequence.(default: 1)\n"
" --command-key-pattern Key pattern for the command (default: R):\n"
" G for Gaussian distribution.\n"
" R for uniform Random.\n"
" S for Sequential.\n"
" P for Parallel (Sequential were each client has a subset of the key-range).\n"
"\n"
"Object Options:\n"
" -d --data-size=SIZE Object data size (default: 32)\n"
" --data-offset=OFFSET Actual size of value will be data-size + data-offset\n"
" Will use SETRANGE / GETRANGE (default: 0)\n"
" -R --random-data Indicate that data should be randomized\n"
" --data-size-range=RANGE Use random-sized items in the specified range (min-max)\n"
" --data-size-list=LIST Use sizes from weight list (size1:weight1,..sizeN:weightN)\n"
" --data-size-pattern=R|S Use together with data-size-range\n"
" when set to R, a random size from the defined data sizes will be used,\n"
" when set to S, the defined data sizes will be evenly distributed across\n"
" the key range, see --key-maximum (default R)\n"
" --expiry-range=RANGE Use random expiry values from the specified range\n"
"\n"
"Imported Data Options:\n"
" --data-import=FILE Read object data from file\n"
" --data-verify Enable data verification when test is complete\n"
" --verify-only Only perform --data-verify, without any other test\n"
" --generate-keys Generate keys for imported objects\n"
" --no-expiry Ignore expiry information in imported data\n"
"\n"
"Key Options:\n"
" --key-prefix=PREFIX Prefix for keys (default: \"memtier-\")\n"
" --key-minimum=NUMBER Key ID minimum value (default: 0)\n"
" --key-maximum=NUMBER Key ID maximum value (default: 10000000)\n"
" --key-pattern=PATTERN Set:Get pattern (default: R:R)\n"
" G for Gaussian distribution.\n"
" R for uniform Random.\n"
" S for Sequential.\n"
" P for Parallel (Sequential were each client has a subset of the key-range).\n"
" --key-stddev The standard deviation used in the Gaussian distribution\n"
" (default is key range / 6)\n"
" --key-median The median point used in the Gaussian distribution\n"
" (default is the center of the key range)\n"
"\n"
"WAIT Options:\n"
" --wait-ratio=RATIO Set:Wait ratio (default is no WAIT commands - 1:0)\n"
" --num-slaves=RANGE WAIT for a random number of slaves in the specified range\n"
" --wait-timeout=RANGE WAIT for a random number of milliseconds in the specified range (normal \n"
" distribution with the center in the middle of the range)"
"\n"
);
exit(2);
}
static void* cg_thread_start(void *t);
struct cg_thread {
unsigned int m_thread_id;
benchmark_config* m_config;
object_generator* m_obj_gen;
client_group* m_cg;
abstract_protocol* m_protocol;
pthread_t m_thread;
bool m_finished;
cg_thread(unsigned int id, benchmark_config* config, object_generator* obj_gen) :
m_thread_id(id), m_config(config), m_obj_gen(obj_gen), m_cg(NULL), m_protocol(NULL), m_finished(false)
{
m_protocol = protocol_factory(m_config->protocol);
assert(m_protocol != NULL);
m_cg = new client_group(m_config, m_protocol, m_obj_gen);
}
~cg_thread()
{
if (m_cg != NULL) {
delete m_cg;
}
if (m_protocol != NULL) {
delete m_protocol;
}
}
int prepare(void)
{
if (m_cg->create_clients(m_config->clients) < (int) m_config->clients)
return -1;
return m_cg->prepare();
}
int start(void)
{
return pthread_create(&m_thread, NULL, cg_thread_start, (void *)this);
}
void join(void)
{
int* retval;
int ret;
ret = pthread_join(m_thread, (void **)&retval);
assert(ret == 0);
}
};
static void* cg_thread_start(void *t)
{
cg_thread* thread = (cg_thread*) t;
thread->m_cg->run();
thread->m_finished = true;
return t;
}
void size_to_str(unsigned long int size, char *buf, int buf_len)
{
if (size >= 1024*1024*1024) {
snprintf(buf, buf_len, "%.2fGB",
(float) size / (1024*1024*1024));
} else if (size >= 1024*1024) {
snprintf(buf, buf_len, "%.2fMB",
(float) size / (1024*1024));
} else {
snprintf(buf, buf_len, "%.2fKB",
(float) size / 1024);
}
}
run_stats run_benchmark(int run_id, benchmark_config* cfg, object_generator* obj_gen)
{
fprintf(stderr, "[RUN #%u] Preparing benchmark client...\n", run_id);
// prepare threads data
std::vector<cg_thread*> threads;
for (unsigned int i = 0; i < cfg->threads; i++) {
cg_thread* t = new cg_thread(i, cfg, obj_gen);
assert(t != NULL);
if (t->prepare() < 0) {
benchmark_error_log("error: failed to prepare thread %u for test.\n", i);
exit(1);
}
threads.push_back(t);
}
// if user configure arbitrary commands, we use one of the thread's protocol to format and prepare it
for (unsigned int i=0; i<cfg->arbitrary_commands->size(); i++) {
if (!threads.front()->m_protocol->format_arbitrary_command(cfg->arbitrary_commands->at(i))) {
exit(1);
}
}
// launch threads
fprintf(stderr, "[RUN #%u] Launching threads now...\n", run_id);
for (std::vector<cg_thread*>::iterator i = threads.begin(); i != threads.end(); i++) {
(*i)->start();
}
unsigned long int prev_ops = 0;
unsigned long int prev_bytes = 0;
unsigned long int prev_duration = 0;
double prev_latency = 0, cur_latency = 0;
unsigned long int cur_ops_sec = 0;
unsigned long int cur_bytes_sec = 0;
// provide some feedback...
unsigned int active_threads = 0;
do {
active_threads = 0;
sleep(1);
unsigned long int total_ops = 0;
unsigned long int total_bytes = 0;
unsigned long int duration = 0;
unsigned int thread_counter = 0;
unsigned long int total_latency = 0;
for (std::vector<cg_thread*>::iterator i = threads.begin(); i != threads.end(); i++) {
if (!(*i)->m_finished)
active_threads++;
total_ops += (*i)->m_cg->get_total_ops();
total_bytes += (*i)->m_cg->get_total_bytes();
total_latency += (*i)->m_cg->get_total_latency();
thread_counter++;
float factor = ((float)(thread_counter - 1) / thread_counter);
duration = factor * duration + (float)(*i)->m_cg->get_duration_usec() / thread_counter ;
}