[redis.git] / benchmark.c

/* Redis benchmark utility.
 *
 * Copyright (c) 2006-2009, Salvatore Sanfilippo <antirez at gmail dot com>
 * 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.
 *   * Neither the name of Redis nor the names of its contributors may 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 <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <sys/time.h>
#include <signal.h>
#include <assert.h>

#include "ae.h"
#include "anet.h"
#include "sds.h"
#include "adlist.h"
#include "zmalloc.h"

#define REPLY_INT 0
#define REPLY_RETCODE 1
#define REPLY_BULK 2

#define CLIENT_CONNECTING 0
#define CLIENT_SENDQUERY 1
#define CLIENT_READREPLY 2

#define MAX_LATENCY 5000

#define REDIS_NOTUSED(V) ((void) V)

static struct config {
    int numclients;
    int requests;
    int liveclients;
    int donerequests;
    int keysize;
    int datasize;
    int randomkeys;
    aeEventLoop *el;
    char *hostip;
    int hostport;
    int keepalive;
    long long start;
    long long totlatency;
    int *latency;
    list *clients;
    int quiet;
    int loop;
} config;

typedef struct _client {
    int state;
    int fd;
    sds obuf;
    sds ibuf;
    int readlen;        /* readlen == -1 means read a single line */
    unsigned int written;        /* bytes of 'obuf' already written */
    int replytype;
    long long start;    /* start time in milliseconds */
} *client;

/* Prototypes */
static void writeHandler(aeEventLoop *el, int fd, void *privdata, int mask);
static void createMissingClients(client c);

/* Implementation */
static long long mstime(void) {
    struct timeval tv;
    long long mst;

    gettimeofday(&tv, NULL);
    mst = ((long)tv.tv_sec)*1000;
    mst += tv.tv_usec/1000;
    return mst;
}

static void freeClient(client c) {
    listNode *ln;

    aeDeleteFileEvent(config.el,c->fd,AE_WRITABLE);
    aeDeleteFileEvent(config.el,c->fd,AE_READABLE);
    sdsfree(c->ibuf);
    sdsfree(c->obuf);
    close(c->fd);
    zfree(c);
    config.liveclients--;
    ln = listSearchKey(config.clients,c);
    assert(ln != NULL);
    listDelNode(config.clients,ln);
}

static void freeAllClients(void) {
    listNode *ln = config.clients->head, *next;

    while(ln) {
        next = ln->next;
        freeClient(ln->value);
        ln = next;
    }
}

static void resetClient(client c) {
    aeDeleteFileEvent(config.el,c->fd,AE_WRITABLE);
    aeDeleteFileEvent(config.el,c->fd,AE_READABLE);
    aeCreateFileEvent(config.el,c->fd, AE_WRITABLE,writeHandler,c,NULL);
    sdsfree(c->ibuf);
    c->ibuf = sdsempty();
    c->readlen = (c->replytype == REPLY_BULK) ? -1 : 0;
    c->written = 0;
    c->state = CLIENT_SENDQUERY;
    c->start = mstime();
}

static void clientDone(client c) {
    long long latency;
    config.donerequests ++;
    latency = mstime() - c->start;
    if (latency > MAX_LATENCY) latency = MAX_LATENCY;
    config.latency[latency]++;

    if (config.donerequests == config.requests) {
        freeClient(c);
        aeStop(config.el);
        return;
    }
    if (config.keepalive) {
        resetClient(c);
    } else {
        config.liveclients--;
        createMissingClients(c);
        config.liveclients++;
        freeClient(c);
    }
}

static void readHandler(aeEventLoop *el, int fd, void *privdata, int mask)
{
    char buf[1024];
    int nread;
    client c = privdata;
    REDIS_NOTUSED(el);
    REDIS_NOTUSED(fd);
    REDIS_NOTUSED(mask);

    nread = read(c->fd, buf, 1024);
    if (nread == -1) {
        fprintf(stderr, "Reading from socket: %s\n", strerror(errno));
        freeClient(c);
        return;
    }
    if (nread == 0) {
        fprintf(stderr, "EOF from client\n");
        freeClient(c);
        return;
    }
    c->ibuf = sdscatlen(c->ibuf,buf,nread);

    if (c->replytype == REPLY_INT ||
        c->replytype == REPLY_RETCODE ||
        (c->replytype == REPLY_BULK && c->readlen == -1)) {
        char *p;

        if ((p = strchr(c->ibuf,'\n')) != NULL) {
            if (c->replytype == REPLY_BULK) {
                *p = '\0';
                *(p-1) = '\0';
                c->readlen = atoi(c->ibuf+1)+2;
                if (c->readlen == -1) {
                    clientDone(c);
                    return;
                }
                c->ibuf = sdsrange(c->ibuf,(p-c->ibuf)+1,-1);
            } else {
                c->ibuf = sdstrim(c->ibuf,"\r\n");
                clientDone(c);
                return;
            }
        }
    }
    /* bulk read */
    if ((unsigned)c->readlen == sdslen(c->ibuf))
        clientDone(c);
}

static void writeHandler(aeEventLoop *el, int fd, void *privdata, int mask)
{
    client c = privdata;
    REDIS_NOTUSED(el);
    REDIS_NOTUSED(fd);
    REDIS_NOTUSED(mask);

    if (c->state == CLIENT_CONNECTING) {
        c->state = CLIENT_SENDQUERY;
        c->start = mstime();
    }
    if (sdslen(c->obuf) > c->written) {
        void *ptr = c->obuf+c->written;
        int len = sdslen(c->obuf) - c->written;
        int nwritten = write(c->fd, ptr, len);
        if (nwritten == -1) {
            fprintf(stderr, "Writing to socket: %s\n", strerror(errno));
            freeClient(c);
            return;
        }
        c->written += nwritten;
        if (sdslen(c->obuf) == c->written) {
            aeDeleteFileEvent(config.el,c->fd,AE_WRITABLE);
            aeCreateFileEvent(config.el,c->fd,AE_READABLE,readHandler,c,NULL);
            c->state = CLIENT_READREPLY;
        }
    }
}

static client createClient(void) {
    client c = zmalloc(sizeof(struct _client));
    char err[ANET_ERR_LEN];

    c->fd = anetTcpNonBlockConnect(err,config.hostip,config.hostport);
    if (c->fd == ANET_ERR) {
        zfree(c);
        fprintf(stderr,"Connect: %s\n",err);
        return NULL;
    }
    anetTcpNoDelay(NULL,c->fd);
    c->obuf = sdsempty();
    c->ibuf = sdsempty();
    c->readlen = 0;
    c->written = 0;
    c->state = CLIENT_CONNECTING;
    aeCreateFileEvent(config.el, c->fd, AE_WRITABLE, writeHandler, c, NULL);
    config.liveclients++;
    listAddNodeTail(config.clients,c);
    return c;
}

static void createMissingClients(client c) {
    while(config.liveclients < config.numclients) {
        client new = createClient();
        if (!new) continue;
        sdsfree(new->obuf);
        new->obuf = sdsdup(c->obuf);
        new->replytype = c->replytype;
        if (c->replytype == REPLY_BULK)
            new->readlen = -1;
    }
}

static void showLatencyReport(char *title) {
    int j, seen = 0;
    float perc, reqpersec;

    reqpersec = (float)config.donerequests/((float)config.totlatency/1000);
    if (!config.quiet) {
        printf("====== %s ======\n", title);
        printf("  %d requests completed in %.2f seconds\n", config.donerequests,
            (float)config.totlatency/1000);
        printf("  %d parallel clients\n", config.numclients);
        printf("  %d bytes payload\n", config.datasize);
        printf("  keep alive: %d\n", config.keepalive);
        printf("\n");
        for (j = 0; j <= MAX_LATENCY; j++) {
            if (config.latency[j]) {
                seen += config.latency[j];
                perc = ((float)seen*100)/config.donerequests;
                printf("%.2f%% <= %d milliseconds\n", perc, j);
            }
        }
        printf("%.2f requests per second\n\n", reqpersec);
    } else {
        printf("%s: %.2f requests per second\n", title, reqpersec);
    }
}

static void prepareForBenchmark(void)
{
    memset(config.latency,0,sizeof(int)*(MAX_LATENCY+1));
    config.start = mstime();
    config.donerequests = 0;
}

static void endBenchmark(char *title) {
    config.totlatency = mstime()-config.start;
    showLatencyReport(title);
    freeAllClients();
}

void parseOptions(int argc, char **argv) {
    int i;

    for (i = 1; i < argc; i++) {
        int lastarg = i==argc-1;
        
        if (!strcmp(argv[i],"-c") && !lastarg) {
            config.numclients = atoi(argv[i+1]);
            i++;
        } else if (!strcmp(argv[i],"-n") && !lastarg) {
            config.requests = atoi(argv[i+1]);
            i++;
        } else if (!strcmp(argv[i],"-k") && !lastarg) {
            config.keepalive = atoi(argv[i+1]);
            i++;
        } else if (!strcmp(argv[i],"-h") && !lastarg) {
            char *ip = zmalloc(32);
            if (anetResolve(NULL,argv[i+1],ip) == ANET_ERR) {
                printf("Can't resolve %s\n", argv[i]);
                exit(1);
            }
            config.hostip = ip;
            i++;
        } else if (!strcmp(argv[i],"-p") && !lastarg) {
            config.hostport = atoi(argv[i+1]);
            i++;
        } else if (!strcmp(argv[i],"-d") && !lastarg) {
            config.datasize = atoi(argv[i+1]);
            i++;
            if (config.datasize < 1) config.datasize=1;
            if (config.datasize > 1024*1024) config.datasize = 1024*1024;
        } else if (!strcmp(argv[i],"-r")) {
            config.randomkeys = 1;
        } else if (!strcmp(argv[i],"-q")) {
            config.quiet = 1;
        } else if (!strcmp(argv[i],"-l")) {
            config.loop = 1;
        } else {
            printf("Wrong option '%s' or option argument missing\n\n",argv[i]);
            printf("Usage: redis-benchmark [-h <host>] [-p <port>] [-c <clients>] [-n <requests]> [-k <boolean>]\n\n");
            printf(" -h <hostname>      Server hostname (default 127.0.0.1)\n");
            printf(" -p <hostname>      Server port (default 6379)\n");
            printf(" -c <clients>       Number of parallel connections (default 50)\n");
            printf(" -n <requests>      Total number of requests (default 10000)\n");
            printf(" -d <size>          Data size of SET/GET value in bytes (default 2)\n");
            printf(" -k <boolean>       1=keep alive 0=reconnect (default 1)\n");
            printf(" -r                 Use random keys for SET/GET/INCR\n");
            printf(" -q                 Quiet. Just show query/sec values\n");
            printf(" -l                 Loop. Run the tests forever\n");
            exit(1);
        }
    }
}

int main(int argc, char **argv) {
    client c;

    signal(SIGHUP, SIG_IGN);
    signal(SIGPIPE, SIG_IGN);

    config.numclients = 50;
    config.requests = 10000;
    config.liveclients = 0;
    config.el = aeCreateEventLoop();
    config.keepalive = 1;
    config.donerequests = 0;
    config.datasize = 3;
    config.randomkeys = 0;
    config.quiet = 0;
    config.loop = 0;
    config.latency = NULL;
    config.clients = listCreate();
    config.latency = zmalloc(sizeof(int)*(MAX_LATENCY+1));

    config.hostip = "127.0.0.1";
    config.hostport = 6379;

    parseOptions(argc,argv);

    if (config.keepalive == 0) {
        printf("WARNING: keepalive disabled, you probably need 'echo 1 > /proc/sys/net/ipv4/tcp_tw_reuse' in order to use a lot of clients/requests\n");
    }

    do {
        prepareForBenchmark();
        c = createClient();
        if (!c) exit(1);
        c->obuf = sdscat(c->obuf,"PING\r\n");
        c->replytype = REPLY_RETCODE;
        createMissingClients(c);
        aeMain(config.el);
        endBenchmark("PING");

        prepareForBenchmark();
        c = createClient();
        if (!c) exit(1);
        c->obuf = sdscatprintf(c->obuf,"SET foo_rand000000000000 %d\r\n",config.datasize);
        {
            char *data = zmalloc(config.datasize+2);
            memset(data,'x',config.datasize);
            data[config.datasize] = '\r';
            data[config.datasize+1] = '\n';
            c->obuf = sdscatlen(c->obuf,data,config.datasize+2);
        }
        c->replytype = REPLY_RETCODE;
        createMissingClients(c);
        aeMain(config.el);
        endBenchmark("SET");

        prepareForBenchmark();
        c = createClient();
        if (!c) exit(1);
        c->obuf = sdscat(c->obuf,"GET foo_rand000000000000\r\n");
        c->replytype = REPLY_BULK;
        c->readlen = -1;
        createMissingClients(c);
        aeMain(config.el);
        endBenchmark("GET");

        prepareForBenchmark();
        c = createClient();
        if (!c) exit(1);
        c->obuf = sdscat(c->obuf,"INCR counter_rand000000000000\r\n");
        c->replytype = REPLY_INT;
        createMissingClients(c);
        aeMain(config.el);
        endBenchmark("INCR");

        prepareForBenchmark();
        c = createClient();
        if (!c) exit(1);
        c->obuf = sdscat(c->obuf,"LPUSH mylist 3\r\nbar\r\n");
        c->replytype = REPLY_INT;
        createMissingClients(c);
        aeMain(config.el);
        endBenchmark("LPUSH");

        prepareForBenchmark();
        c = createClient();
        if (!c) exit(1);
        c->obuf = sdscat(c->obuf,"LPOP mylist\r\n");
        c->replytype = REPLY_BULK;
        c->readlen = -1;
        createMissingClients(c);
        aeMain(config.el);
        endBenchmark("LPOP");

        printf("\n");
    } while(config.loop);

    return 0;
}
Commit	Line	Data
ed9b544e	1	/* Redis benchmark utility.
	2	*
	3	* Copyright (c) 2006-2009, Salvatore Sanfilippo <antirez at gmail dot com>
	4	* All rights reserved.
	5	*
	6	* Redistribution and use in source and binary forms, with or without
	7	* modification, are permitted provided that the following conditions are met:
	8	*
	9	* * Redistributions of source code must retain the above copyright notice,
	10	* this list of conditions and the following disclaimer.
	11	* * Redistributions in binary form must reproduce the above copyright
	12	* notice, this list of conditions and the following disclaimer in the
	13	* documentation and/or other materials provided with the distribution.
	14	* * Neither the name of Redis nor the names of its contributors may be used
	15	* to endorse or promote products derived from this software without
	16	* specific prior written permission.
	17	*
	18	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
	19	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	20	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	21	* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
	22	* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
	23	* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
	24	* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
	25	* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
	26	* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	27	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
	28	* POSSIBILITY OF SUCH DAMAGE.
	29	*/
	30
	31	#include <stdio.h>
	32	#include <string.h>
	33	#include <stdlib.h>
	34	#include <unistd.h>
	35	#include <errno.h>
	36	#include <sys/time.h>
	37	#include <signal.h>
	38	#include <assert.h>
	39
	40	#include "ae.h"
	41	#include "anet.h"
	42	#include "sds.h"
	43	#include "adlist.h"
	44	#include "zmalloc.h"
	45
	46	#define REPLY_INT 0
	47	#define REPLY_RETCODE 1
	48	#define REPLY_BULK 2
	49
	50	#define CLIENT_CONNECTING 0
	51	#define CLIENT_SENDQUERY 1
	52	#define CLIENT_READREPLY 2
	53
	54	#define MAX_LATENCY 5000
	55
	56	#define REDIS_NOTUSED(V) ((void) V)
	57
	58	static struct config {
	59	int numclients;
	60	int requests;
	61	int liveclients;
	62	int donerequests;
	63	int keysize;
	64	int datasize;
57172ffb	65	int randomkeys;
ed9b544e	66	aeEventLoop *el;
	67	char *hostip;
	68	int hostport;
	69	int keepalive;
	70	long long start;
	71	long long totlatency;
	72	int *latency;
	73	list *clients;
	74	int quiet;
	75	int loop;
	76	} config;
	77
	78	typedef struct _client {
	79	int state;
	80	int fd;
	81	sds obuf;
	82	sds ibuf;
	83	int readlen; /* readlen == -1 means read a single line */
	84	unsigned int written; /* bytes of 'obuf' already written */
	85	int replytype;
	86	long long start; /* start time in milliseconds */
	87	} *client;
	88
	89	/* Prototypes */
	90	static void writeHandler(aeEventLoop el, int fd, void privdata, int mask);
	91	static void createMissingClients(client c);
	92
	93	/* Implementation */
	94	static long long mstime(void) {
	95	struct timeval tv;
	96	long long mst;
	97
	98	gettimeofday(&tv, NULL);
	99	mst = ((long)tv.tv_sec)*1000;
	100	mst += tv.tv_usec/1000;
	101	return mst;
	102	}
	103
	104	static void freeClient(client c) {
	105	listNode *ln;
	106
	107	aeDeleteFileEvent(config.el,c->fd,AE_WRITABLE);
	108	aeDeleteFileEvent(config.el,c->fd,AE_READABLE);
	109	sdsfree(c->ibuf);
	110	sdsfree(c->obuf);
	111	close(c->fd);
	112	zfree(c);
	113	config.liveclients--;
	114	ln = listSearchKey(config.clients,c);
	115	assert(ln != NULL);
	116	listDelNode(config.clients,ln);
	117	}
	118
	119	static void freeAllClients(void) {
	120	listNode ln = config.clients->head, next;
	121
	122	while(ln) {
	123	next = ln->next;
	124	freeClient(ln->value);
	125	ln = next;
	126	}
	127	}
	128
	129	static void resetClient(client c) {
130	aeDeleteFileEvent(config.el,c->fd,AE_WRITABLE);
131	aeDeleteFileEvent(config.el,c->fd,AE_READABLE);
132	aeCreateFileEvent(config.el,c->fd, AE_WRITABLE,writeHandler,c,NULL);
133	sdsfree(c->ibuf);
134	c->ibuf = sdsempty();
135	c->readlen = (c->replytype == REPLY_BULK) ? -1 : 0;
136	c->written = 0;
137	c->state = CLIENT_SENDQUERY;
138	c->start = mstime();
139	}
140
141	static void clientDone(client c) {
142	long long latency;
143	config.donerequests ++;
144	latency = mstime() - c->start;
145	if (latency > MAX_LATENCY) latency = MAX_LATENCY;
146	config.latency[latency]++;
147
148	if (config.donerequests == config.requests) {
149	freeClient(c);
150	aeStop(config.el);
151	return;
152	}
153	if (config.keepalive) {
154	resetClient(c);
155	} else {
156	config.liveclients--;
157	createMissingClients(c);
158	config.liveclients++;
159	freeClient(c);
160	}
161	}
162
163	static void readHandler(aeEventLoop el, int fd, void privdata, int mask)
164	{
165	char buf[1024];
166	int nread;
167	client c = privdata;
168	REDIS_NOTUSED(el);
169	REDIS_NOTUSED(fd);
170	REDIS_NOTUSED(mask);
171
172	nread = read(c->fd, buf, 1024);
173	if (nread == -1) {
174	fprintf(stderr, "Reading from socket: %s\n", strerror(errno));
175	freeClient(c);
176	return;
177	}
178	if (nread == 0) {
179	fprintf(stderr, "EOF from client\n");
180	freeClient(c);
181	return;
182	}
183	c->ibuf = sdscatlen(c->ibuf,buf,nread);
184
185	if (c->replytype == REPLY_INT \|\|
186	c->replytype == REPLY_RETCODE \|\|
187	(c->replytype == REPLY_BULK && c->readlen == -1)) {
188	char *p;
189
190	if ((p = strchr(c->ibuf,'\n')) != NULL) {
191	if (c->replytype == REPLY_BULK) {
192	*p = '\0';
193	*(p-1) = '\0';
4c26a79a	194	c->readlen = atoi(c->ibuf+1)+2;
4c26a79a	195	if (c->readlen == -1) {
ed9b544e	196	clientDone(c);
	197	return;
	198	}
ed9b544e	199	c->ibuf = sdsrange(c->ibuf,(p-c->ibuf)+1,-1);
	200	} else {
	201	c->ibuf = sdstrim(c->ibuf,"\r\n");
	202	clientDone(c);
	203	return;
	204	}
	205	}
	206	}
	207	/* bulk read */
	208	if ((unsigned)c->readlen == sdslen(c->ibuf))
	209	clientDone(c);
	210	}
	211
	212	static void writeHandler(aeEventLoop el, int fd, void privdata, int mask)
	213	{
	214	client c = privdata;
	215	REDIS_NOTUSED(el);
	216	REDIS_NOTUSED(fd);
	217	REDIS_NOTUSED(mask);
	218
	219	if (c->state == CLIENT_CONNECTING) {
	220	c->state = CLIENT_SENDQUERY;
	221	c->start = mstime();
	222	}
	223	if (sdslen(c->obuf) > c->written) {
	224	void *ptr = c->obuf+c->written;
	225	int len = sdslen(c->obuf) - c->written;
	226	int nwritten = write(c->fd, ptr, len);
	227	if (nwritten == -1) {
	228	fprintf(stderr, "Writing to socket: %s\n", strerror(errno));
	229	freeClient(c);
	230	return;
	231	}
	232	c->written += nwritten;
	233	if (sdslen(c->obuf) == c->written) {
	234	aeDeleteFileEvent(config.el,c->fd,AE_WRITABLE);
	235	aeCreateFileEvent(config.el,c->fd,AE_READABLE,readHandler,c,NULL);
	236	c->state = CLIENT_READREPLY;
	237	}
	238	}
	239	}
	240
	241	static client createClient(void) {
	242	client c = zmalloc(sizeof(struct _client));
	243	char err[ANET_ERR_LEN];
	244
	245	c->fd = anetTcpNonBlockConnect(err,config.hostip,config.hostport);
	246	if (c->fd == ANET_ERR) {
	247	zfree(c);
	248	fprintf(stderr,"Connect: %s\n",err);
	249	return NULL;
	250	}
	251	anetTcpNoDelay(NULL,c->fd);
	252	c->obuf = sdsempty();
	253	c->ibuf = sdsempty();
	254	c->readlen = 0;
	255	c->written = 0;
	256	c->state = CLIENT_CONNECTING;
	257	aeCreateFileEvent(config.el, c->fd, AE_WRITABLE, writeHandler, c, NULL);
	258	config.liveclients++;
	259	listAddNodeTail(config.clients,c);
	260	return c;
	261	}
	262
263	static void createMissingClients(client c) {
264	while(config.liveclients < config.numclients) {
265	client new = createClient();
266	if (!new) continue;
267	sdsfree(new->obuf);
268	new->obuf = sdsdup(c->obuf);
269	new->replytype = c->replytype;
270	if (c->replytype == REPLY_BULK)
271	new->readlen = -1;
272	}
273	}
274
275	static void showLatencyReport(char *title) {
276	int j, seen = 0;
277	float perc, reqpersec;
278
279	reqpersec = (float)config.donerequests/((float)config.totlatency/1000);
280	if (!config.quiet) {
281	printf("====== %s ======\n", title);
282	printf(" %d requests completed in %.2f seconds\n", config.donerequests,
283	(float)config.totlatency/1000);
284	printf(" %d parallel clients\n", config.numclients);
285	printf(" %d bytes payload\n", config.datasize);
286	printf(" keep alive: %d\n", config.keepalive);
287	printf("\n");
288	for (j = 0; j <= MAX_LATENCY; j++) {
289	if (config.latency[j]) {
290	seen += config.latency[j];
291	perc = ((float)seen*100)/config.donerequests;
292	printf("%.2f%% <= %d milliseconds\n", perc, j);
293	}
294	}
295	printf("%.2f requests per second\n\n", reqpersec);
296	} else {
297	printf("%s: %.2f requests per second\n", title, reqpersec);
298	}
299	}
300
301	static void prepareForBenchmark(void)
302	{
303	memset(config.latency,0,sizeof(int)*(MAX_LATENCY+1));
304	config.start = mstime();
305	config.donerequests = 0;
306	}
307
308	static void endBenchmark(char *title) {
309	config.totlatency = mstime()-config.start;
310	showLatencyReport(title);
311	freeAllClients();
312	}
313
314	void parseOptions(int argc, char **argv) {
315	int i;
316
317	for (i = 1; i < argc; i++) {
318	int lastarg = i==argc-1;
319
320	if (!strcmp(argv[i],"-c") && !lastarg) {
321	config.numclients = atoi(argv[i+1]);
322	i++;
323	} else if (!strcmp(argv[i],"-n") && !lastarg) {
324	config.requests = atoi(argv[i+1]);
325	i++;
326	} else if (!strcmp(argv[i],"-k") && !lastarg) {
327	config.keepalive = atoi(argv[i+1]);
328	i++;
329	} else if (!strcmp(argv[i],"-h") && !lastarg) {
330	char *ip = zmalloc(32);
331	if (anetResolve(NULL,argv[i+1],ip) == ANET_ERR) {
332	printf("Can't resolve %s\n", argv[i]);
333	exit(1);
334	}
335	config.hostip = ip;
336	i++;
337	} else if (!strcmp(argv[i],"-p") && !lastarg) {
338	config.hostport = atoi(argv[i+1]);
339	i++;
340	} else if (!strcmp(argv[i],"-d") && !lastarg) {
341	config.datasize = atoi(argv[i+1]);
342	i++;
343	if (config.datasize < 1) config.datasize=1;
344	if (config.datasize > 10241024) config.datasize = 10241024;
57172ffb	345	} else if (!strcmp(argv[i],"-r")) {
57172ffb	346	config.randomkeys = 1;
ed9b544e	347	} else if (!strcmp(argv[i],"-q")) {
	348	config.quiet = 1;
	349	} else if (!strcmp(argv[i],"-l")) {
	350	config.loop = 1;
	351	} else {
	352	printf("Wrong option '%s' or option argument missing\n\n",argv[i]);
	353	printf("Usage: redis-benchmark [-h <host>] [-p <port>] [-c <clients>] [-n <requests]> [-k <boolean>]\n\n");
	354	printf(" -h <hostname> Server hostname (default 127.0.0.1)\n");
	355	printf(" -p <hostname> Server port (default 6379)\n");
	356	printf(" -c <clients> Number of parallel connections (default 50)\n");
	357	printf(" -n <requests> Total number of requests (default 10000)\n");
	358	printf(" -d <size> Data size of SET/GET value in bytes (default 2)\n");
	359	printf(" -k <boolean> 1=keep alive 0=reconnect (default 1)\n");
57172ffb	360	printf(" -r Use random keys for SET/GET/INCR\n");
ed9b544e	361	printf(" -q Quiet. Just show query/sec values\n");
	362	printf(" -l Loop. Run the tests forever\n");
	363	exit(1);
	364	}
	365	}
	366	}
	367
	368	int main(int argc, char **argv) {
	369	client c;
	370
	371	signal(SIGHUP, SIG_IGN);
	372	signal(SIGPIPE, SIG_IGN);
	373
	374	config.numclients = 50;
	375	config.requests = 10000;
	376	config.liveclients = 0;
	377	config.el = aeCreateEventLoop();
	378	config.keepalive = 1;
	379	config.donerequests = 0;
	380	config.datasize = 3;
57172ffb	381	config.randomkeys = 0;
ed9b544e	382	config.quiet = 0;
	383	config.loop = 0;
	384	config.latency = NULL;
	385	config.clients = listCreate();
	386	config.latency = zmalloc(sizeof(int)*(MAX_LATENCY+1));
	387
	388	config.hostip = "127.0.0.1";
	389	config.hostport = 6379;
	390
	391	parseOptions(argc,argv);
	392
	393	if (config.keepalive == 0) {
	394	printf("WARNING: keepalive disabled, you probably need 'echo 1 > /proc/sys/net/ipv4/tcp_tw_reuse' in order to use a lot of clients/requests\n");
	395	}
	396
	397	do {
	398	prepareForBenchmark();
	399	c = createClient();
	400	if (!c) exit(1);
	401	c->obuf = sdscat(c->obuf,"PING\r\n");
	402	c->replytype = REPLY_RETCODE;
	403	createMissingClients(c);
	404	aeMain(config.el);
	405	endBenchmark("PING");
	406
	407	prepareForBenchmark();
	408	c = createClient();
	409	if (!c) exit(1);
57172ffb	410	c->obuf = sdscatprintf(c->obuf,"SET foo_rand000000000000 %d\r\n",config.datasize);
ed9b544e	411	{
	412	char *data = zmalloc(config.datasize+2);
	413	memset(data,'x',config.datasize);
	414	data[config.datasize] = '\r';
	415	data[config.datasize+1] = '\n';
	416	c->obuf = sdscatlen(c->obuf,data,config.datasize+2);
	417	}
	418	c->replytype = REPLY_RETCODE;
	419	createMissingClients(c);
	420	aeMain(config.el);
	421	endBenchmark("SET");
	422
	423	prepareForBenchmark();
	424	c = createClient();
	425	if (!c) exit(1);
57172ffb	426	c->obuf = sdscat(c->obuf,"GET foo_rand000000000000\r\n");
ed9b544e	427	c->replytype = REPLY_BULK;
	428	c->readlen = -1;
	429	createMissingClients(c);
	430	aeMain(config.el);
	431	endBenchmark("GET");
	432
	433	prepareForBenchmark();
	434	c = createClient();
	435	if (!c) exit(1);
57172ffb	436	c->obuf = sdscat(c->obuf,"INCR counter_rand000000000000\r\n");
ed9b544e	437	c->replytype = REPLY_INT;
	438	createMissingClients(c);
	439	aeMain(config.el);
	440	endBenchmark("INCR");
	441
	442	prepareForBenchmark();
	443	c = createClient();
	444	if (!c) exit(1);
	445	c->obuf = sdscat(c->obuf,"LPUSH mylist 3\r\nbar\r\n");
	446	c->replytype = REPLY_INT;
	447	createMissingClients(c);
	448	aeMain(config.el);
	449	endBenchmark("LPUSH");
	450
	451	prepareForBenchmark();
	452	c = createClient();
	453	if (!c) exit(1);
	454	c->obuf = sdscat(c->obuf,"LPOP mylist\r\n");
	455	c->replytype = REPLY_BULK;
	456	c->readlen = -1;
	457	createMissingClients(c);
	458	aeMain(config.el);
	459	endBenchmark("LPOP");
	460
	461	printf("\n");
	462	} while(config.loop);
	463
	464	return 0;
	465	}