--- /dev/null
+/* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
+ *
+ * Libmemcached library
+ *
+ * Copyright (C) 2011-2012 Data Differential, http://datadifferential.com/
+ * Copyright (C) 2006-2009 Brian Aker All rights reserved.
+ *
+ * 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.
+ *
+ * * The names of its contributors may not 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 COPYRIGHT
+ * OWNER 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.
+ *
+ */
+
+
+#include <mem_config.h>
+
+#include <cassert>
+#include <cerrno>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <fcntl.h>
+#include <getopt.h>
+#include <memory>
+#include <pthread.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <iostream>
+
+#include <libmemcached-1.0/memcached.h>
+
+#include "client_options.h"
+#include "utilities.h"
+#include "generator.h"
+#include "execute.h"
+
+#define DEFAULT_INITIAL_LOAD 10000
+#define DEFAULT_EXECUTE_NUMBER 10000
+#define DEFAULT_CONCURRENCY 1
+
+#define VALUE_BYTES 4096
+
+#define PROGRAM_NAME "memslap"
+#define PROGRAM_DESCRIPTION "Generates a load against a memcached custer of servers."
+
+/* Global Thread counter */
+volatile unsigned int master_wakeup;
+pthread_mutex_t sleeper_mutex;
+pthread_cond_t sleep_threshhold;
+
+/* Types */
+enum test_t {
+ SET_TEST,
+ GET_TEST,
+ MGET_TEST
+};
+
+struct thread_context_st {
+ unsigned int key_count;
+ pairs_st *initial_pairs;
+ unsigned int initial_number;
+ pairs_st *execute_pairs;
+ unsigned int execute_number;
+ char **keys;
+ size_t *key_lengths;
+ test_t test;
+ memcached_st *memc;
+ const memcached_st* root;
+
+ thread_context_st(const memcached_st* memc_arg, test_t test_arg) :
+ key_count(0),
+ initial_pairs(NULL),
+ initial_number(0),
+ execute_pairs(NULL),
+ execute_number(0),
+ keys(0),
+ key_lengths(NULL),
+ test(test_arg),
+ memc(NULL),
+ root(memc_arg)
+ {
+ }
+
+ void init()
+ {
+ memc= memcached_clone(NULL, root);
+ }
+
+ ~thread_context_st()
+ {
+ if (execute_pairs)
+ {
+ pairs_free(execute_pairs);
+ }
+ memcached_free(memc);
+ }
+};
+
+struct conclusions_st {
+ long int load_time;
+ long int read_time;
+ unsigned int rows_loaded;
+ unsigned int rows_read;
+
+ conclusions_st() :
+ load_time(0),
+ read_time(0),
+ rows_loaded(0),
+ rows_read()
+ { }
+};
+
+/* Prototypes */
+void options_parse(int argc, char *argv[]);
+void conclusions_print(conclusions_st *conclusion);
+void scheduler(memcached_server_st *servers, conclusions_st *conclusion);
+pairs_st *load_create_data(memcached_st *memc, unsigned int number_of,
+ unsigned int *actual_loaded);
+void flush_all(memcached_st *memc);
+
+static bool opt_binary= 0;
+static int opt_verbose= 0;
+static int opt_flush= 0;
+static int opt_non_blocking_io= 0;
+static int opt_tcp_nodelay= 0;
+static unsigned int opt_execute_number= 0;
+static unsigned int opt_createial_load= 0;
+static unsigned int opt_concurrency= 0;
+static int opt_displayflag= 0;
+static char *opt_servers= NULL;
+static bool opt_udp_io= false;
+test_t opt_test= SET_TEST;
+
+extern "C" {
+
+static __attribute__((noreturn)) void *run_task(void *p)
+{
+ thread_context_st *context= (thread_context_st *)p;
+
+ context->init();
+
+ pthread_mutex_lock(&sleeper_mutex);
+ while (master_wakeup)
+ {
+ pthread_cond_wait(&sleep_threshhold, &sleeper_mutex);
+ }
+ pthread_mutex_unlock(&sleeper_mutex);
+
+ /* Do Stuff */
+ switch (context->test)
+ {
+ case SET_TEST:
+ assert(context->execute_pairs);
+ execute_set(context->memc, context->execute_pairs, context->execute_number);
+ break;
+
+ case GET_TEST:
+ execute_get(context->memc, context->initial_pairs, context->initial_number);
+ break;
+
+ case MGET_TEST:
+ execute_mget(context->memc, (const char*const*)context->keys, context->key_lengths, context->initial_number);
+ break;
+ }
+
+ delete context;
+
+ pthread_exit(0);
+}
+
+}
+
+
+int main(int argc, char *argv[])
+{
+ conclusions_st conclusion;
+
+ srandom((unsigned int)time(NULL));
+ options_parse(argc, argv);
+
+ if (opt_servers == NULL)
+ {
+ char *temp;
+
+ if ((temp= getenv("MEMCACHED_SERVERS")))
+ {
+ opt_servers= strdup(temp);
+ }
+
+ if (opt_servers == NULL)
+ {
+ std::cerr << "No Servers provided" << std::endl;
+ exit(EXIT_FAILURE);
+ }
+ }
+
+ memcached_server_st *servers= memcached_servers_parse(opt_servers);
+ if (servers == NULL or memcached_server_list_count(servers) == 0)
+ {
+ std::cerr << "Invalid server list provided:" << opt_servers << std::endl;
+ return EXIT_FAILURE;
+ }
+
+ pthread_mutex_init(&sleeper_mutex, NULL);
+ pthread_cond_init(&sleep_threshhold, NULL);
+
+ int error_code= EXIT_SUCCESS;
+ try {
+ scheduler(servers, &conclusion);
+ }
+ catch(std::exception& e)
+ {
+ std::cerr << "Died with exception: " << e.what() << std::endl;
+ error_code= EXIT_FAILURE;
+ }
+
+ free(opt_servers);
+
+ (void)pthread_mutex_destroy(&sleeper_mutex);
+ (void)pthread_cond_destroy(&sleep_threshhold);
+ conclusions_print(&conclusion);
+ memcached_server_list_free(servers);
+
+ return error_code;
+}
+
+void scheduler(memcached_server_st *servers, conclusions_st *conclusion)
+{
+ unsigned int actual_loaded= 0; /* Fix warning */
+
+ struct timeval start_time, end_time;
+ pairs_st *pairs= NULL;
+
+ memcached_st *memc= memcached_create(NULL);
+
+ memcached_server_push(memc, servers);
+
+ /* We need to set udp behavior before adding servers to the client */
+ if (opt_udp_io)
+ {
+ if (memcached_failed(memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_USE_UDP, opt_udp_io)))
+ {
+ std::cerr << "Failed to enable UDP." << std::endl;
+ memcached_free(memc);
+ exit(EXIT_FAILURE);
+ }
+ }
+
+ memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_BINARY_PROTOCOL,
+ (uint64_t)opt_binary);
+
+ if (opt_flush)
+ {
+ flush_all(memc);
+ }
+
+ if (opt_createial_load)
+ {
+ pairs= load_create_data(memc, opt_createial_load, &actual_loaded);
+ }
+
+ char **keys= static_cast<char **>(calloc(actual_loaded, sizeof(char*)));
+ size_t *key_lengths= static_cast<size_t *>(calloc(actual_loaded, sizeof(size_t)));
+
+ if (keys == NULL or key_lengths == NULL)
+ {
+ free(keys);
+ free(key_lengths);
+ keys= NULL;
+ key_lengths= NULL;
+ }
+ else
+ {
+ for (uint32_t x= 0; x < actual_loaded; ++x)
+ {
+ keys[x]= pairs[x].key;
+ key_lengths[x]= pairs[x].key_length;
+ }
+ }
+
+ /* We set this after we have loaded */
+ {
+ if (opt_non_blocking_io)
+ memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_NO_BLOCK, 1);
+
+ if (opt_tcp_nodelay)
+ memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_TCP_NODELAY, 1);
+ }
+
+ pthread_mutex_lock(&sleeper_mutex);
+ master_wakeup= 1;
+ pthread_mutex_unlock(&sleeper_mutex);
+
+ pthread_t *threads= new (std::nothrow) pthread_t[opt_concurrency];
+
+ if (threads == NULL)
+ {
+ exit(EXIT_FAILURE);
+ }
+
+ for (uint32_t x= 0; x < opt_concurrency; x++)
+ {
+ thread_context_st *context= new thread_context_st(memc, opt_test);
+ context->test= opt_test;
+
+ context->initial_pairs= pairs;
+ context->initial_number= actual_loaded;
+ context->keys= keys;
+ context->key_lengths= key_lengths;
+
+ if (opt_test == SET_TEST)
+ {
+ context->execute_pairs= pairs_generate(opt_execute_number, VALUE_BYTES);
+ context->execute_number= opt_execute_number;
+ }
+
+ /* now you create the thread */
+ if (pthread_create(threads +x, NULL, run_task, (void *)context) != 0)
+ {
+ fprintf(stderr,"Could not create thread\n");
+ exit(1);
+ }
+ }
+
+ pthread_mutex_lock(&sleeper_mutex);
+ master_wakeup= 0;
+ pthread_mutex_unlock(&sleeper_mutex);
+ pthread_cond_broadcast(&sleep_threshhold);
+ gettimeofday(&start_time, NULL);
+
+ for (uint32_t x= 0; x < opt_concurrency; x++)
+ {
+ void *retval;
+ pthread_join(threads[x], &retval);
+ }
+ delete [] threads;
+
+ gettimeofday(&end_time, NULL);
+
+ conclusion->load_time= timedif(end_time, start_time);
+ conclusion->read_time= timedif(end_time, start_time);
+ free(keys);
+ free(key_lengths);
+ pairs_free(pairs);
+ memcached_free(memc);
+}
+
+void options_parse(int argc, char *argv[])
+{
+ memcached_programs_help_st help_options[]=
+ {
+ {0},
+ };
+
+ static struct option long_options[]=
+ {
+ {(OPTIONSTRING)"concurrency", required_argument, NULL, OPT_SLAP_CONCURRENCY},
+ {(OPTIONSTRING)"debug", no_argument, &opt_verbose, OPT_DEBUG},
+ {(OPTIONSTRING)"quiet", no_argument, NULL, OPT_QUIET},
+ {(OPTIONSTRING)"execute-number", required_argument, NULL, OPT_SLAP_EXECUTE_NUMBER},
+ {(OPTIONSTRING)"flag", no_argument, &opt_displayflag, OPT_FLAG},
+ {(OPTIONSTRING)"flush", no_argument, &opt_flush, OPT_FLUSH},
+ {(OPTIONSTRING)"help", no_argument, NULL, OPT_HELP},
+ {(OPTIONSTRING)"initial-load", required_argument, NULL, OPT_SLAP_INITIAL_LOAD}, /* Number to load initially */
+ {(OPTIONSTRING)"non-blocking", no_argument, &opt_non_blocking_io, OPT_SLAP_NON_BLOCK},
+ {(OPTIONSTRING)"servers", required_argument, NULL, OPT_SERVERS},
+ {(OPTIONSTRING)"tcp-nodelay", no_argument, &opt_tcp_nodelay, OPT_SLAP_TCP_NODELAY},
+ {(OPTIONSTRING)"test", required_argument, NULL, OPT_SLAP_TEST},
+ {(OPTIONSTRING)"verbose", no_argument, &opt_verbose, OPT_VERBOSE},
+ {(OPTIONSTRING)"version", no_argument, NULL, OPT_VERSION},
+ {(OPTIONSTRING)"binary", no_argument, NULL, OPT_BINARY},
+ {(OPTIONSTRING)"udp", no_argument, NULL, OPT_UDP},
+ {0, 0, 0, 0},
+ };
+
+ bool opt_help= false;
+ bool opt_version= false;
+ int option_index= 0;
+ while (1)
+ {
+ int option_rv= getopt_long(argc, argv, "Vhvds:", long_options, &option_index);
+
+ if (option_rv == -1) break;
+
+ switch (option_rv)
+ {
+ case 0:
+ break;
+
+ case OPT_UDP:
+ if (opt_test == GET_TEST)
+ {
+ fprintf(stderr, "You can not run a get test in UDP mode. UDP mode "
+ "does not currently support get ops.\n");
+ exit(1);
+ }
+ opt_udp_io= true;
+ break;
+
+ case OPT_BINARY:
+ opt_binary= true;
+ break;
+
+ case OPT_VERBOSE: /* --verbose or -v */
+ opt_verbose= OPT_VERBOSE;
+ break;
+
+ case OPT_DEBUG: /* --debug or -d */
+ opt_verbose= OPT_DEBUG;
+ break;
+
+ case OPT_VERSION: /* --version or -V */
+ opt_version= true;
+ break;
+
+ case OPT_HELP: /* --help or -h */
+ opt_help= true;
+ break;
+
+ case OPT_SERVERS: /* --servers or -s */
+ opt_servers= strdup(optarg);
+ break;
+
+ case OPT_SLAP_TEST:
+ if (strcmp(optarg, "get") == 0)
+ {
+ if (opt_udp_io == 1)
+ {
+ fprintf(stderr, "You can not run a get test in UDP mode. UDP mode "
+ "does not currently support get ops.\n");
+ exit(EXIT_FAILURE);
+ }
+ opt_test= GET_TEST ;
+ }
+ else if (strcmp(optarg, "set") == 0)
+ {
+ opt_test= SET_TEST;
+ }
+ else if (strcmp(optarg, "mget") == 0)
+ {
+ opt_test= MGET_TEST;
+ }
+ else
+ {
+ fprintf(stderr, "Your test, %s, is not a known test\n", optarg);
+ exit(EXIT_FAILURE);
+ }
+ break;
+
+ case OPT_SLAP_CONCURRENCY:
+ errno= 0;
+ opt_concurrency= (unsigned int)strtoul(optarg, (char **)NULL, 10);
+ if (errno != 0)
+ {
+ fprintf(stderr, "Invalid value for concurrency: %s\n", optarg);
+ exit(EXIT_FAILURE);
+ }
+ break;
+
+ case OPT_SLAP_EXECUTE_NUMBER:
+ errno= 0;
+ opt_execute_number= (unsigned int)strtoul(optarg, (char **)NULL, 10);
+ if (errno != 0)
+ {
+ fprintf(stderr, "Invalid value for execute: %s\n", optarg);
+ exit(EXIT_FAILURE);
+ }
+ break;
+
+ case OPT_SLAP_INITIAL_LOAD:
+ errno= 0;
+ opt_createial_load= (unsigned int)strtoul(optarg, (char **)NULL, 10);
+ if (errno != 0)
+ {
+ fprintf(stderr, "Invalid value for initial load: %s\n", optarg);
+ exit(EXIT_FAILURE);
+ }
+ break;
+
+ case OPT_QUIET:
+ close_stdio();
+ break;
+
+
+ case '?':
+ /* getopt_long already printed an error message. */
+ exit(EXIT_FAILURE);
+
+ default:
+ abort();
+ }
+ }
+
+ if (opt_version)
+ {
+ version_command(PROGRAM_NAME);
+ exit(EXIT_SUCCESS);
+ }
+
+ if (opt_help)
+ {
+ help_command(PROGRAM_NAME, PROGRAM_DESCRIPTION, long_options, help_options);
+ exit(EXIT_SUCCESS);
+ }
+
+ if ((opt_test == GET_TEST or opt_test == MGET_TEST) and opt_createial_load == 0)
+ opt_createial_load= DEFAULT_INITIAL_LOAD;
+
+ if (opt_execute_number == 0)
+ opt_execute_number= DEFAULT_EXECUTE_NUMBER;
+
+ if (opt_concurrency == 0)
+ opt_concurrency= DEFAULT_CONCURRENCY;
+}
+
+void conclusions_print(conclusions_st *conclusion)
+{
+ printf("\tThreads connecting to servers %u\n", opt_concurrency);
+#ifdef NOT_FINISHED
+ printf("\tLoaded %u rows\n", conclusion->rows_loaded);
+ printf("\tRead %u rows\n", conclusion->rows_read);
+#endif
+ if (opt_test == SET_TEST)
+ printf("\tTook %ld.%03ld seconds to load data\n", conclusion->load_time / 1000,
+ conclusion->load_time % 1000);
+ else
+ printf("\tTook %ld.%03ld seconds to read data\n", conclusion->read_time / 1000,
+ conclusion->read_time % 1000);
+}
+
+void flush_all(memcached_st *memc)
+{
+ memcached_flush(memc, 0);
+}
+
+pairs_st *load_create_data(memcached_st *memc, unsigned int number_of,
+ unsigned int *actual_loaded)
+{
+ memcached_st *memc_clone= memcached_clone(NULL, memc);
+ /* We always used non-blocking IO for load since it is faster */
+ memcached_behavior_set(memc_clone, MEMCACHED_BEHAVIOR_NO_BLOCK, 0);
+
+ pairs_st *pairs= pairs_generate(number_of, VALUE_BYTES);
+ *actual_loaded= execute_set(memc_clone, pairs, number_of);
+
+ memcached_free(memc_clone);
+
+ return pairs;
+}
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