[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 "fmacros.h"

#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;
    int randomkeys_keyspacelen;
    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();
    createMissingClients(c);
}

static void randomizeClientKey(client c) {
    char *p;
    char buf[32];
    long r;

    p = strstr(c->obuf, "_rand");
    if (!p) return;
    p += 5;
    r = random() % config.randomkeys_keyspacelen;
    sprintf(buf,"%ld",r);
    memcpy(p,buf,strlen(buf));
}

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);
        if (config.randomkeys) randomizeClientKey(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-2 == -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);
        if (config.randomkeys) randomizeClientKey(c);
        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") && !lastarg) {
            config.randomkeys = 1;
            config.randomkeys_keyspacelen = atoi(argv[i+1]);
            if (config.randomkeys_keyspacelen < 0)
                config.randomkeys_keyspacelen = 0;
            i++;
        } 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 <keyspacelen>   Use random keys for SET/GET/INCR\n");
            printf("  Using this option the benchmark will get/set keys\n");
            printf("  in the form mykey_rand000000012456 instead of constant\n");
            printf("  keys, the <keyspacelen> argument determines the max\n");
            printf("  number of values for the random number. For instance\n");
            printf("  if set to 10 only rand000000000000 - rand000000000009\n");
            printf("  range will be allowed.\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.randomkeys_keyspacelen = 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' for Linux and 'sudo sysctl -w net.inet.tcp.msl=1000' for Mac OS X in order to use a lot of clients/requests\n");
    }

    do {
        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");

        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");

        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
5f5b9840	31	#include "fmacros.h"
5f5b9840	32
ed9b544e	33	#include <stdio.h>
	34	#include <string.h>
	35	#include <stdlib.h>
	36	#include <unistd.h>
	37	#include <errno.h>
	38	#include <sys/time.h>
	39	#include <signal.h>
	40	#include <assert.h>
	41
	42	#include "ae.h"
	43	#include "anet.h"
	44	#include "sds.h"
	45	#include "adlist.h"
	46	#include "zmalloc.h"
	47
	48	#define REPLY_INT 0
	49	#define REPLY_RETCODE 1
	50	#define REPLY_BULK 2
	51
	52	#define CLIENT_CONNECTING 0
	53	#define CLIENT_SENDQUERY 1
	54	#define CLIENT_READREPLY 2
	55
	56	#define MAX_LATENCY 5000
	57
	58	#define REDIS_NOTUSED(V) ((void) V)
	59
	60	static struct config {
	61	int numclients;
	62	int requests;
	63	int liveclients;
	64	int donerequests;
	65	int keysize;
	66	int datasize;
57172ffb	67	int randomkeys;
ecfaf6da	68	int randomkeys_keyspacelen;
ed9b544e	69	aeEventLoop *el;
	70	char *hostip;
	71	int hostport;
	72	int keepalive;
	73	long long start;
	74	long long totlatency;
	75	int *latency;
	76	list *clients;
	77	int quiet;
	78	int loop;
	79	} config;
	80
	81	typedef struct _client {
	82	int state;
	83	int fd;
	84	sds obuf;
	85	sds ibuf;
	86	int readlen; /* readlen == -1 means read a single line */
	87	unsigned int written; /* bytes of 'obuf' already written */
	88	int replytype;
	89	long long start; /* start time in milliseconds */
	90	} *client;
	91
	92	/* Prototypes */
	93	static void writeHandler(aeEventLoop el, int fd, void privdata, int mask);
	94	static void createMissingClients(client c);
	95
	96	/* Implementation */
	97	static long long mstime(void) {
	98	struct timeval tv;
	99	long long mst;
	100
	101	gettimeofday(&tv, NULL);
	102	mst = ((long)tv.tv_sec)*1000;
	103	mst += tv.tv_usec/1000;
	104	return mst;
	105	}
	106
	107	static void freeClient(client c) {
	108	listNode *ln;
	109
	110	aeDeleteFileEvent(config.el,c->fd,AE_WRITABLE);
	111	aeDeleteFileEvent(config.el,c->fd,AE_READABLE);
	112	sdsfree(c->ibuf);
	113	sdsfree(c->obuf);
	114	close(c->fd);
	115	zfree(c);
	116	config.liveclients--;
	117	ln = listSearchKey(config.clients,c);
	118	assert(ln != NULL);
	119	listDelNode(config.clients,ln);
	120	}
	121
	122	static void freeAllClients(void) {
	123	listNode ln = config.clients->head, next;
	124
	125	while(ln) {
	126	next = ln->next;
	127	freeClient(ln->value);
	128	ln = next;
	129	}
	130	}
	131
	132	static void resetClient(client c) {
133	aeDeleteFileEvent(config.el,c->fd,AE_WRITABLE);
134	aeDeleteFileEvent(config.el,c->fd,AE_READABLE);
135	aeCreateFileEvent(config.el,c->fd, AE_WRITABLE,writeHandler,c,NULL);
136	sdsfree(c->ibuf);
137	c->ibuf = sdsempty();
138	c->readlen = (c->replytype == REPLY_BULK) ? -1 : 0;
139	c->written = 0;
140	c->state = CLIENT_SENDQUERY;
141	c->start = mstime();
74077975	142	createMissingClients(c);
ed9b544e	143	}
ed9b544e	144
ecfaf6da	145	static void randomizeClientKey(client c) {
	146	char *p;
	147	char buf[32];
	148	long r;
	149
	150	p = strstr(c->obuf, "_rand");
	151	if (!p) return;
	152	p += 5;
	153	r = random() % config.randomkeys_keyspacelen;
	154	sprintf(buf,"%ld",r);
	155	memcpy(p,buf,strlen(buf));
	156	}
	157
ed9b544e	158	static void clientDone(client c) {
	159	long long latency;
	160	config.donerequests ++;
	161	latency = mstime() - c->start;
	162	if (latency > MAX_LATENCY) latency = MAX_LATENCY;
	163	config.latency[latency]++;
	164
	165	if (config.donerequests == config.requests) {
	166	freeClient(c);
	167	aeStop(config.el);
	168	return;
	169	}
	170	if (config.keepalive) {
	171	resetClient(c);
ecfaf6da	172	if (config.randomkeys) randomizeClientKey(c);
ed9b544e	173	} else {
	174	config.liveclients--;
	175	createMissingClients(c);
	176	config.liveclients++;
	177	freeClient(c);
	178	}
	179	}
	180
	181	static void readHandler(aeEventLoop el, int fd, void privdata, int mask)
	182	{
	183	char buf[1024];
	184	int nread;
	185	client c = privdata;
	186	REDIS_NOTUSED(el);
	187	REDIS_NOTUSED(fd);
	188	REDIS_NOTUSED(mask);
	189
	190	nread = read(c->fd, buf, 1024);
	191	if (nread == -1) {
	192	fprintf(stderr, "Reading from socket: %s\n", strerror(errno));
	193	freeClient(c);
	194	return;
	195	}
	196	if (nread == 0) {
	197	fprintf(stderr, "EOF from client\n");
	198	freeClient(c);
	199	return;
	200	}
	201	c->ibuf = sdscatlen(c->ibuf,buf,nread);
	202
	203	if (c->replytype == REPLY_INT \|\|
	204	c->replytype == REPLY_RETCODE \|\|
	205	(c->replytype == REPLY_BULK && c->readlen == -1)) {
	206	char *p;
	207
	208	if ((p = strchr(c->ibuf,'\n')) != NULL) {
	209	if (c->replytype == REPLY_BULK) {
	210	*p = '\0';
	211	*(p-1) = '\0';
4c26a79a	212	c->readlen = atoi(c->ibuf+1)+2;
ecfaf6da	213	if (c->readlen-2 == -1) {
ed9b544e	214	clientDone(c);
	215	return;
	216	}
ed9b544e	217	c->ibuf = sdsrange(c->ibuf,(p-c->ibuf)+1,-1);
	218	} else {
	219	c->ibuf = sdstrim(c->ibuf,"\r\n");
	220	clientDone(c);
	221	return;
	222	}
	223	}
	224	}
	225	/* bulk read */
	226	if ((unsigned)c->readlen == sdslen(c->ibuf))
	227	clientDone(c);
	228	}
	229
	230	static void writeHandler(aeEventLoop el, int fd, void privdata, int mask)
	231	{
	232	client c = privdata;
	233	REDIS_NOTUSED(el);
	234	REDIS_NOTUSED(fd);
	235	REDIS_NOTUSED(mask);
	236
	237	if (c->state == CLIENT_CONNECTING) {
	238	c->state = CLIENT_SENDQUERY;
	239	c->start = mstime();
	240	}
	241	if (sdslen(c->obuf) > c->written) {
	242	void *ptr = c->obuf+c->written;
	243	int len = sdslen(c->obuf) - c->written;
	244	int nwritten = write(c->fd, ptr, len);
	245	if (nwritten == -1) {
	246	fprintf(stderr, "Writing to socket: %s\n", strerror(errno));
	247	freeClient(c);
	248	return;
	249	}
	250	c->written += nwritten;
	251	if (sdslen(c->obuf) == c->written) {
	252	aeDeleteFileEvent(config.el,c->fd,AE_WRITABLE);
	253	aeCreateFileEvent(config.el,c->fd,AE_READABLE,readHandler,c,NULL);
	254	c->state = CLIENT_READREPLY;
	255	}
	256	}
	257	}
	258
	259	static client createClient(void) {
	260	client c = zmalloc(sizeof(struct _client));
	261	char err[ANET_ERR_LEN];
	262
	263	c->fd = anetTcpNonBlockConnect(err,config.hostip,config.hostport);
	264	if (c->fd == ANET_ERR) {
	265	zfree(c);
	266	fprintf(stderr,"Connect: %s\n",err);
	267	return NULL;
	268	}
	269	anetTcpNoDelay(NULL,c->fd);
	270	c->obuf = sdsempty();
	271	c->ibuf = sdsempty();
	272	c->readlen = 0;
	273	c->written = 0;
	274	c->state = CLIENT_CONNECTING;
	275	aeCreateFileEvent(config.el, c->fd, AE_WRITABLE, writeHandler, c, NULL);
	276	config.liveclients++;
	277	listAddNodeTail(config.clients,c);
	278	return c;
	279	}
	280
281	static void createMissingClients(client c) {
282	while(config.liveclients < config.numclients) {
283	client new = createClient();
284	if (!new) continue;
285	sdsfree(new->obuf);
286	new->obuf = sdsdup(c->obuf);
ecfaf6da	287	if (config.randomkeys) randomizeClientKey(c);
ed9b544e	288	new->replytype = c->replytype;
	289	if (c->replytype == REPLY_BULK)
	290	new->readlen = -1;
	291	}
	292	}
	293
	294	static void showLatencyReport(char *title) {
	295	int j, seen = 0;
	296	float perc, reqpersec;
	297
	298	reqpersec = (float)config.donerequests/((float)config.totlatency/1000);
	299	if (!config.quiet) {
	300	printf("====== %s ======\n", title);
	301	printf(" %d requests completed in %.2f seconds\n", config.donerequests,
	302	(float)config.totlatency/1000);
	303	printf(" %d parallel clients\n", config.numclients);
	304	printf(" %d bytes payload\n", config.datasize);
	305	printf(" keep alive: %d\n", config.keepalive);
	306	printf("\n");
	307	for (j = 0; j <= MAX_LATENCY; j++) {
	308	if (config.latency[j]) {
	309	seen += config.latency[j];
	310	perc = ((float)seen*100)/config.donerequests;
	311	printf("%.2f%% <= %d milliseconds\n", perc, j);
	312	}
	313	}
	314	printf("%.2f requests per second\n\n", reqpersec);
	315	} else {
	316	printf("%s: %.2f requests per second\n", title, reqpersec);
	317	}
	318	}
	319
	320	static void prepareForBenchmark(void)
	321	{
	322	memset(config.latency,0,sizeof(int)*(MAX_LATENCY+1));
	323	config.start = mstime();
	324	config.donerequests = 0;
	325	}
	326
	327	static void endBenchmark(char *title) {
	328	config.totlatency = mstime()-config.start;
	329	showLatencyReport(title);
	330	freeAllClients();
	331	}
	332
	333	void parseOptions(int argc, char **argv) {
	334	int i;
	335
	336	for (i = 1; i < argc; i++) {
	337	int lastarg = i==argc-1;
	338
	339	if (!strcmp(argv[i],"-c") && !lastarg) {
	340	config.numclients = atoi(argv[i+1]);
	341	i++;
	342	} else if (!strcmp(argv[i],"-n") && !lastarg) {
	343	config.requests = atoi(argv[i+1]);
	344	i++;
	345	} else if (!strcmp(argv[i],"-k") && !lastarg) {
	346	config.keepalive = atoi(argv[i+1]);
	347	i++;
	348	} else if (!strcmp(argv[i],"-h") && !lastarg) {
	349	char *ip = zmalloc(32);
	350	if (anetResolve(NULL,argv[i+1],ip) == ANET_ERR) {
	351	printf("Can't resolve %s\n", argv[i]);
352	exit(1);
353	}
354	config.hostip = ip;
355	i++;
356	} else if (!strcmp(argv[i],"-p") && !lastarg) {
357	config.hostport = atoi(argv[i+1]);
358	i++;
359	} else if (!strcmp(argv[i],"-d") && !lastarg) {
360	config.datasize = atoi(argv[i+1]);
361	i++;
362	if (config.datasize < 1) config.datasize=1;
363	if (config.datasize > 10241024) config.datasize = 10241024;
ecfaf6da	364	} else if (!strcmp(argv[i],"-r") && !lastarg) {
57172ffb	365	config.randomkeys = 1;
ecfaf6da	366	config.randomkeys_keyspacelen = atoi(argv[i+1]);
	367	if (config.randomkeys_keyspacelen < 0)
	368	config.randomkeys_keyspacelen = 0;
	369	i++;
ed9b544e	370	} else if (!strcmp(argv[i],"-q")) {
	371	config.quiet = 1;
	372	} else if (!strcmp(argv[i],"-l")) {
	373	config.loop = 1;
	374	} else {
	375	printf("Wrong option '%s' or option argument missing\n\n",argv[i]);
	376	printf("Usage: redis-benchmark [-h <host>] [-p <port>] [-c <clients>] [-n <requests]> [-k <boolean>]\n\n");
	377	printf(" -h <hostname> Server hostname (default 127.0.0.1)\n");
	378	printf(" -p <hostname> Server port (default 6379)\n");
	379	printf(" -c <clients> Number of parallel connections (default 50)\n");
	380	printf(" -n <requests> Total number of requests (default 10000)\n");
	381	printf(" -d <size> Data size of SET/GET value in bytes (default 2)\n");
	382	printf(" -k <boolean> 1=keep alive 0=reconnect (default 1)\n");
ecfaf6da	383	printf(" -r <keyspacelen> Use random keys for SET/GET/INCR\n");
	384	printf(" Using this option the benchmark will get/set keys\n");
	385	printf(" in the form mykey_rand000000012456 instead of constant\n");
	386	printf(" keys, the <keyspacelen> argument determines the max\n");
	387	printf(" number of values for the random number. For instance\n");
	388	printf(" if set to 10 only rand000000000000 - rand000000000009\n");
	389	printf(" range will be allowed.\n");
ed9b544e	390	printf(" -q Quiet. Just show query/sec values\n");
	391	printf(" -l Loop. Run the tests forever\n");
	392	exit(1);
	393	}
	394	}
	395	}
	396
	397	int main(int argc, char **argv) {
	398	client c;
	399
	400	signal(SIGHUP, SIG_IGN);
	401	signal(SIGPIPE, SIG_IGN);
	402
	403	config.numclients = 50;
	404	config.requests = 10000;
	405	config.liveclients = 0;
	406	config.el = aeCreateEventLoop();
	407	config.keepalive = 1;
	408	config.donerequests = 0;
	409	config.datasize = 3;
57172ffb	410	config.randomkeys = 0;
ecfaf6da	411	config.randomkeys_keyspacelen = 0;
ed9b544e	412	config.quiet = 0;
	413	config.loop = 0;
	414	config.latency = NULL;
	415	config.clients = listCreate();
	416	config.latency = zmalloc(sizeof(int)*(MAX_LATENCY+1));
	417
	418	config.hostip = "127.0.0.1";
	419	config.hostport = 6379;
	420
	421	parseOptions(argc,argv);
	422
	423	if (config.keepalive == 0) {
c3251497	424	printf("WARNING: keepalive disabled, you probably need 'echo 1 > /proc/sys/net/ipv4/tcp_tw_reuse' for Linux and 'sudo sysctl -w net.inet.tcp.msl=1000' for Mac OS X in order to use a lot of clients/requests\n");
ed9b544e	425	}
	426
	427	do {
ed9b544e	428	prepareForBenchmark();
	429	c = createClient();
	430	if (!c) exit(1);
57172ffb	431	c->obuf = sdscatprintf(c->obuf,"SET foo_rand000000000000 %d\r\n",config.datasize);
ed9b544e	432	{
	433	char *data = zmalloc(config.datasize+2);
	434	memset(data,'x',config.datasize);
	435	data[config.datasize] = '\r';
	436	data[config.datasize+1] = '\n';
	437	c->obuf = sdscatlen(c->obuf,data,config.datasize+2);
	438	}
	439	c->replytype = REPLY_RETCODE;
	440	createMissingClients(c);
	441	aeMain(config.el);
	442	endBenchmark("SET");
	443
	444	prepareForBenchmark();
	445	c = createClient();
	446	if (!c) exit(1);
57172ffb	447	c->obuf = sdscat(c->obuf,"GET foo_rand000000000000\r\n");
ed9b544e	448	c->replytype = REPLY_BULK;
	449	c->readlen = -1;
	450	createMissingClients(c);
	451	aeMain(config.el);
	452	endBenchmark("GET");
	453
	454	prepareForBenchmark();
	455	c = createClient();
	456	if (!c) exit(1);
57172ffb	457	c->obuf = sdscat(c->obuf,"INCR counter_rand000000000000\r\n");
ed9b544e	458	c->replytype = REPLY_INT;
	459	createMissingClients(c);
	460	aeMain(config.el);
	461	endBenchmark("INCR");
	462
	463	prepareForBenchmark();
	464	c = createClient();
	465	if (!c) exit(1);
	466	c->obuf = sdscat(c->obuf,"LPUSH mylist 3\r\nbar\r\n");
	467	c->replytype = REPLY_INT;
	468	createMissingClients(c);
	469	aeMain(config.el);
	470	endBenchmark("LPUSH");
	471
	472	prepareForBenchmark();
	473	c = createClient();
	474	if (!c) exit(1);
	475	c->obuf = sdscat(c->obuf,"LPOP mylist\r\n");
	476	c->replytype = REPLY_BULK;
	477	c->readlen = -1;
	478	createMissingClients(c);
	479	aeMain(config.el);
	480	endBenchmark("LPOP");
	481
9f3c422c	482	prepareForBenchmark();
	483	c = createClient();
	484	if (!c) exit(1);
	485	c->obuf = sdscat(c->obuf,"PING\r\n");
	486	c->replytype = REPLY_RETCODE;
	487	createMissingClients(c);
	488	aeMain(config.el);
	489	endBenchmark("PING");
	490
ed9b544e	491	printf("\n");
	492	} while(config.loop);
	493
	494	return 0;
	495	}