[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 REPLY_MBULK 3

#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 mbulk;          /* Number of elements in an mbulk reply */
    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->mbulk = -1;
    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 prepareClientForReply(client c, int type) {
    if (type == REPLY_BULK) {
        c->replytype = REPLY_BULK;
        c->readlen = -1;
    } else if (type == REPLY_MBULK) {
        c->replytype = REPLY_MBULK;
        c->readlen = -1;
        c->mbulk = -1;
    } else {
        c->replytype = type;
        c->readlen = 0;
    }
}

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);

processdata:
    /* Are we waiting for the first line of the command of for  sdf 
     * count in bulk or multi bulk operations? */
    if (c->replytype == REPLY_INT ||
        c->replytype == REPLY_RETCODE ||
        (c->replytype == REPLY_BULK && c->readlen == -1) ||
        (c->replytype == REPLY_MBULK && c->readlen == -1) ||
        (c->replytype == REPLY_MBULK && c->mbulk == -1)) {
        char *p;

        /* Check if the first line is complete. This is only true if
         * there is a newline inside the buffer. */
        if ((p = strchr(c->ibuf,'\n')) != NULL) {
            if (c->replytype == REPLY_BULK ||
                (c->replytype == REPLY_MBULK && c->mbulk != -1))
            {
                /* Read the count of a bulk reply (being it a single bulk or
                 * a multi bulk reply). "$<count>" for the protocol spec. */
                *p = '\0';
                *(p-1) = '\0';
                c->readlen = atoi(c->ibuf+1)+2;
                /* Handle null bulk reply "$-1" */
                if (c->readlen-2 == -1) {
                    clientDone(c);
                    return;
                }
                /* Leave all the rest in the input buffer */
                c->ibuf = sdsrange(c->ibuf,(p-c->ibuf)+1,-1);
                /* fall through to reach the point where the code will try
                 * to check if the bulk reply is complete. */
            } else if (c->replytype == REPLY_MBULK && c->mbulk == -1) {
                /* Read the count of a multi bulk reply. That is, how many
                 * bulk replies we have to read next. "*<count>" protocol. */
                *p = '\0';
                *(p-1) = '\0';
                c->mbulk = atoi(c->ibuf+1);
                /* Handle null bulk reply "*-1" */
                if (c->mbulk == -1) {
                    clientDone(c);
                    return;
                }
                /* Leave all the rest in the input buffer */
                c->ibuf = sdsrange(c->ibuf,(p-c->ibuf)+1,-1);
                goto processdata;
            } else {
                c->ibuf = sdstrim(c->ibuf,"\r\n");
                clientDone(c);
                return;
            }
        }
    }
    /* bulk read, did we read everything? */
    if (((c->replytype == REPLY_MBULK && c->mbulk != -1) || 
         (c->replytype == REPLY_BULK)) && c->readlen != -1 &&
          (unsigned)c->readlen <= sdslen(c->ibuf))
    {
        if (c->replytype == REPLY_BULK) {
            clientDone(c);
        } else if (c->replytype == REPLY_MBULK) {
            if (--c->mbulk == 0) {
                clientDone(c);
            } else {
                c->ibuf = sdsrange(c->ibuf,c->readlen,-1);
                c->readlen = -1;
                goto processdata;
            }
        }
    }
}

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->mbulk = -1;
    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);
        }
        prepareClientForReply(c,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");
        prepareClientForReply(c,REPLY_BULK);
        createMissingClients(c);
        aeMain(config.el);
        endBenchmark("GET");

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

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

        prepareForBenchmark();
        c = createClient();
        if (!c) exit(1);
        c->obuf = sdscat(c->obuf,"LPUSH mylist 3\r\nbar\r\n");
        prepareClientForReply(c,REPLY_RETCODE);
        createMissingClients(c);
        aeMain(config.el);
        endBenchmark("LPUSH (again, in order to bench LRANGE)");

        prepareForBenchmark();
        c = createClient();
        if (!c) exit(1);
        c->obuf = sdscat(c->obuf,"LRANGE mylist 0 99\r\n");
        prepareClientForReply(c,REPLY_MBULK);
        createMissingClients(c);
        aeMain(config.el);
        endBenchmark("LRANGE (first 100 elements)");

        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
6c4e61b3	51	#define REPLY_MBULK 3
ed9b544e	52
	53	#define CLIENT_CONNECTING 0
	54	#define CLIENT_SENDQUERY 1
	55	#define CLIENT_READREPLY 2
	56
	57	#define MAX_LATENCY 5000
	58
	59	#define REDIS_NOTUSED(V) ((void) V)
	60
	61	static struct config {
	62	int numclients;
	63	int requests;
	64	int liveclients;
	65	int donerequests;
	66	int keysize;
	67	int datasize;
57172ffb	68	int randomkeys;
ecfaf6da	69	int randomkeys_keyspacelen;
ed9b544e	70	aeEventLoop *el;
	71	char *hostip;
	72	int hostport;
	73	int keepalive;
	74	long long start;
	75	long long totlatency;
	76	int *latency;
	77	list *clients;
	78	int quiet;
	79	int loop;
	80	} config;
	81
	82	typedef struct _client {
	83	int state;
	84	int fd;
	85	sds obuf;
	86	sds ibuf;
2fd30952	87	int mbulk; /* Number of elements in an mbulk reply */
ed9b544e	88	int readlen; /* readlen == -1 means read a single line */
	89	unsigned int written; /* bytes of 'obuf' already written */
	90	int replytype;
	91	long long start; /* start time in milliseconds */
	92	} *client;
	93
	94	/* Prototypes */
	95	static void writeHandler(aeEventLoop el, int fd, void privdata, int mask);
	96	static void createMissingClients(client c);
	97
	98	/* Implementation */
	99	static long long mstime(void) {
	100	struct timeval tv;
	101	long long mst;
	102
	103	gettimeofday(&tv, NULL);
	104	mst = ((long)tv.tv_sec)*1000;
	105	mst += tv.tv_usec/1000;
	106	return mst;
	107	}
	108
	109	static void freeClient(client c) {
	110	listNode *ln;
	111
	112	aeDeleteFileEvent(config.el,c->fd,AE_WRITABLE);
	113	aeDeleteFileEvent(config.el,c->fd,AE_READABLE);
	114	sdsfree(c->ibuf);
	115	sdsfree(c->obuf);
	116	close(c->fd);
	117	zfree(c);
	118	config.liveclients--;
	119	ln = listSearchKey(config.clients,c);
	120	assert(ln != NULL);
	121	listDelNode(config.clients,ln);
	122	}
	123
	124	static void freeAllClients(void) {
	125	listNode ln = config.clients->head, next;
	126
	127	while(ln) {
	128	next = ln->next;
	129	freeClient(ln->value);
	130	ln = next;
	131	}
	132	}
	133
	134	static void resetClient(client c) {
	135	aeDeleteFileEvent(config.el,c->fd,AE_WRITABLE);
	136	aeDeleteFileEvent(config.el,c->fd,AE_READABLE);
	137	aeCreateFileEvent(config.el,c->fd, AE_WRITABLE,writeHandler,c,NULL);
	138	sdsfree(c->ibuf);
	139	c->ibuf = sdsempty();
	140	c->readlen = (c->replytype == REPLY_BULK) ? -1 : 0;
2fd30952	141	c->mbulk = -1;
ed9b544e	142	c->written = 0;
	143	c->state = CLIENT_SENDQUERY;
	144	c->start = mstime();
74077975	145	createMissingClients(c);
ed9b544e	146	}
ed9b544e	147
ecfaf6da	148	static void randomizeClientKey(client c) {
	149	char *p;
	150	char buf[32];
	151	long r;
	152
	153	p = strstr(c->obuf, "_rand");
	154	if (!p) return;
	155	p += 5;
	156	r = random() % config.randomkeys_keyspacelen;
	157	sprintf(buf,"%ld",r);
	158	memcpy(p,buf,strlen(buf));
	159	}
	160
2fd30952	161	static void prepareClientForReply(client c, int type) {
	162	if (type == REPLY_BULK) {
	163	c->replytype = REPLY_BULK;
	164	c->readlen = -1;
	165	} else if (type == REPLY_MBULK) {
	166	c->replytype = REPLY_MBULK;
	167	c->readlen = -1;
	168	c->mbulk = -1;
	169	} else {
	170	c->replytype = type;
	171	c->readlen = 0;
	172	}
	173	}
	174
ed9b544e	175	static void clientDone(client c) {
	176	long long latency;
	177	config.donerequests ++;
	178	latency = mstime() - c->start;
	179	if (latency > MAX_LATENCY) latency = MAX_LATENCY;
	180	config.latency[latency]++;
	181
	182	if (config.donerequests == config.requests) {
	183	freeClient(c);
	184	aeStop(config.el);
	185	return;
	186	}
	187	if (config.keepalive) {
	188	resetClient(c);
ecfaf6da	189	if (config.randomkeys) randomizeClientKey(c);
ed9b544e	190	} else {
	191	config.liveclients--;
	192	createMissingClients(c);
	193	config.liveclients++;
	194	freeClient(c);
	195	}
	196	}
	197
	198	static void readHandler(aeEventLoop el, int fd, void privdata, int mask)
	199	{
	200	char buf[1024];
	201	int nread;
	202	client c = privdata;
	203	REDIS_NOTUSED(el);
	204	REDIS_NOTUSED(fd);
	205	REDIS_NOTUSED(mask);
	206
	207	nread = read(c->fd, buf, 1024);
	208	if (nread == -1) {
	209	fprintf(stderr, "Reading from socket: %s\n", strerror(errno));
	210	freeClient(c);
	211	return;
	212	}
	213	if (nread == 0) {
	214	fprintf(stderr, "EOF from client\n");
	215	freeClient(c);
	216	return;
	217	}
	218	c->ibuf = sdscatlen(c->ibuf,buf,nread);
	219
2fd30952	220	processdata:
6c4e61b3	221	/* Are we waiting for the first line of the command of for sdf
6c4e61b3	222	* count in bulk or multi bulk operations? */
ed9b544e	223	if (c->replytype == REPLY_INT \|\|
ed9b544e	224	c->replytype == REPLY_RETCODE \|\|
2fd30952	225	(c->replytype == REPLY_BULK && c->readlen == -1) \|\|
	226	(c->replytype == REPLY_MBULK && c->readlen == -1) \|\|
	227	(c->replytype == REPLY_MBULK && c->mbulk == -1)) {
ed9b544e	228	char *p;
ed9b544e	229
6c4e61b3	230	/* Check if the first line is complete. This is only true if
6c4e61b3	231	* there is a newline inside the buffer. */
ed9b544e	232	if ((p = strchr(c->ibuf,'\n')) != NULL) {
2fd30952	233	if (c->replytype == REPLY_BULK \|\|
	234	(c->replytype == REPLY_MBULK && c->mbulk != -1))
	235	{
6c4e61b3	236	/* Read the count of a bulk reply (being it a single bulk or
6c4e61b3	237	* a multi bulk reply). "$<count>" for the protocol spec. */
ed9b544e	238	*p = '\0';
ed9b544e	239	*(p-1) = '\0';
4c26a79a	240	c->readlen = atoi(c->ibuf+1)+2;
2fd30952	241	/* Handle null bulk reply "$-1" */
ecfaf6da	242	if (c->readlen-2 == -1) {
ed9b544e	243	clientDone(c);
	244	return;
	245	}
2fd30952	246	/* Leave all the rest in the input buffer */
2fd30952	247	c->ibuf = sdsrange(c->ibuf,(p-c->ibuf)+1,-1);
6c4e61b3	248	/* fall through to reach the point where the code will try
6c4e61b3	249	* to check if the bulk reply is complete. */
2fd30952	250	} else if (c->replytype == REPLY_MBULK && c->mbulk == -1) {
6c4e61b3	251	/* Read the count of a multi bulk reply. That is, how many
6c4e61b3	252	* bulk replies we have to read next. "<count>" protocol. /
2fd30952	253	*p = '\0';
	254	*(p-1) = '\0';
	255	c->mbulk = atoi(c->ibuf+1);
	256	/* Handle null bulk reply "-1" /
	257	if (c->mbulk == -1) {
	258	clientDone(c);
	259	return;
	260	}
	261	/* Leave all the rest in the input buffer */
ed9b544e	262	c->ibuf = sdsrange(c->ibuf,(p-c->ibuf)+1,-1);
2fd30952	263	goto processdata;
ed9b544e	264	} else {
	265	c->ibuf = sdstrim(c->ibuf,"\r\n");
	266	clientDone(c);
	267	return;
	268	}
	269	}
	270	}
2fd30952	271	/* bulk read, did we read everything? */
6c4e61b3	272	if (((c->replytype == REPLY_MBULK && c->mbulk != -1) \|\|
	273	(c->replytype == REPLY_BULK)) && c->readlen != -1 &&
	274	(unsigned)c->readlen <= sdslen(c->ibuf))
2fd30952	275	{
	276	if (c->replytype == REPLY_BULK) {
	277	clientDone(c);
	278	} else if (c->replytype == REPLY_MBULK) {
	279	if (--c->mbulk == 0) {
	280	clientDone(c);
	281	} else {
	282	c->ibuf = sdsrange(c->ibuf,c->readlen,-1);
	283	c->readlen = -1;
	284	goto processdata;
	285	}
	286	}
	287	}
ed9b544e	288	}
	289
	290	static void writeHandler(aeEventLoop el, int fd, void privdata, int mask)
	291	{
	292	client c = privdata;
	293	REDIS_NOTUSED(el);
	294	REDIS_NOTUSED(fd);
	295	REDIS_NOTUSED(mask);
	296
	297	if (c->state == CLIENT_CONNECTING) {
	298	c->state = CLIENT_SENDQUERY;
	299	c->start = mstime();
	300	}
	301	if (sdslen(c->obuf) > c->written) {
	302	void *ptr = c->obuf+c->written;
	303	int len = sdslen(c->obuf) - c->written;
	304	int nwritten = write(c->fd, ptr, len);
	305	if (nwritten == -1) {
	306	fprintf(stderr, "Writing to socket: %s\n", strerror(errno));
	307	freeClient(c);
	308	return;
	309	}
	310	c->written += nwritten;
	311	if (sdslen(c->obuf) == c->written) {
	312	aeDeleteFileEvent(config.el,c->fd,AE_WRITABLE);
	313	aeCreateFileEvent(config.el,c->fd,AE_READABLE,readHandler,c,NULL);
	314	c->state = CLIENT_READREPLY;
	315	}
	316	}
	317	}
	318
	319	static client createClient(void) {
	320	client c = zmalloc(sizeof(struct _client));
	321	char err[ANET_ERR_LEN];
	322
	323	c->fd = anetTcpNonBlockConnect(err,config.hostip,config.hostport);
	324	if (c->fd == ANET_ERR) {
	325	zfree(c);
	326	fprintf(stderr,"Connect: %s\n",err);
	327	return NULL;
	328	}
	329	anetTcpNoDelay(NULL,c->fd);
	330	c->obuf = sdsempty();
	331	c->ibuf = sdsempty();
2fd30952	332	c->mbulk = -1;
ed9b544e	333	c->readlen = 0;
	334	c->written = 0;
	335	c->state = CLIENT_CONNECTING;
	336	aeCreateFileEvent(config.el, c->fd, AE_WRITABLE, writeHandler, c, NULL);
	337	config.liveclients++;
	338	listAddNodeTail(config.clients,c);
	339	return c;
	340	}
	341
	342	static void createMissingClients(client c) {
	343	while(config.liveclients < config.numclients) {
	344	client new = createClient();
	345	if (!new) continue;
	346	sdsfree(new->obuf);
	347	new->obuf = sdsdup(c->obuf);
ecfaf6da	348	if (config.randomkeys) randomizeClientKey(c);
ed9b544e	349	new->replytype = c->replytype;
	350	if (c->replytype == REPLY_BULK)
	351	new->readlen = -1;
	352	}
	353	}
	354
	355	static void showLatencyReport(char *title) {
	356	int j, seen = 0;
	357	float perc, reqpersec;
	358
	359	reqpersec = (float)config.donerequests/((float)config.totlatency/1000);
	360	if (!config.quiet) {
	361	printf("====== %s ======\n", title);
	362	printf(" %d requests completed in %.2f seconds\n", config.donerequests,
	363	(float)config.totlatency/1000);
	364	printf(" %d parallel clients\n", config.numclients);
	365	printf(" %d bytes payload\n", config.datasize);
	366	printf(" keep alive: %d\n", config.keepalive);
	367	printf("\n");
	368	for (j = 0; j <= MAX_LATENCY; j++) {
	369	if (config.latency[j]) {
	370	seen += config.latency[j];
	371	perc = ((float)seen*100)/config.donerequests;
	372	printf("%.2f%% <= %d milliseconds\n", perc, j);
	373	}
	374	}
	375	printf("%.2f requests per second\n\n", reqpersec);
	376	} else {
	377	printf("%s: %.2f requests per second\n", title, reqpersec);
	378	}
	379	}
	380
	381	static void prepareForBenchmark(void)
	382	{
	383	memset(config.latency,0,sizeof(int)*(MAX_LATENCY+1));
	384	config.start = mstime();
	385	config.donerequests = 0;
	386	}
	387
	388	static void endBenchmark(char *title) {
	389	config.totlatency = mstime()-config.start;
	390	showLatencyReport(title);
	391	freeAllClients();
	392	}
	393
	394	void parseOptions(int argc, char **argv) {
	395	int i;
	396
	397	for (i = 1; i < argc; i++) {
	398	int lastarg = i==argc-1;
	399
	400	if (!strcmp(argv[i],"-c") && !lastarg) {
	401	config.numclients = atoi(argv[i+1]);
	402	i++;
	403	} else if (!strcmp(argv[i],"-n") && !lastarg) {
	404	config.requests = atoi(argv[i+1]);
	405	i++;
	406	} else if (!strcmp(argv[i],"-k") && !lastarg) {
	407	config.keepalive = atoi(argv[i+1]);
	408	i++;
	409	} else if (!strcmp(argv[i],"-h") && !lastarg) {
	410	char *ip = zmalloc(32);
	411	if (anetResolve(NULL,argv[i+1],ip) == ANET_ERR) {
	412	printf("Can't resolve %s\n", argv[i]);
413	exit(1);
414	}
415	config.hostip = ip;
416	i++;
417	} else if (!strcmp(argv[i],"-p") && !lastarg) {
418	config.hostport = atoi(argv[i+1]);
419	i++;
420	} else if (!strcmp(argv[i],"-d") && !lastarg) {
421	config.datasize = atoi(argv[i+1]);
422	i++;
423	if (config.datasize < 1) config.datasize=1;
424	if (config.datasize > 10241024) config.datasize = 10241024;
ecfaf6da	425	} else if (!strcmp(argv[i],"-r") && !lastarg) {
57172ffb	426	config.randomkeys = 1;
ecfaf6da	427	config.randomkeys_keyspacelen = atoi(argv[i+1]);
	428	if (config.randomkeys_keyspacelen < 0)
	429	config.randomkeys_keyspacelen = 0;
	430	i++;
ed9b544e	431	} else if (!strcmp(argv[i],"-q")) {
	432	config.quiet = 1;
	433	} else if (!strcmp(argv[i],"-l")) {
	434	config.loop = 1;
	435	} else {
	436	printf("Wrong option '%s' or option argument missing\n\n",argv[i]);
	437	printf("Usage: redis-benchmark [-h <host>] [-p <port>] [-c <clients>] [-n <requests]> [-k <boolean>]\n\n");
	438	printf(" -h <hostname> Server hostname (default 127.0.0.1)\n");
	439	printf(" -p <hostname> Server port (default 6379)\n");
	440	printf(" -c <clients> Number of parallel connections (default 50)\n");
	441	printf(" -n <requests> Total number of requests (default 10000)\n");
	442	printf(" -d <size> Data size of SET/GET value in bytes (default 2)\n");
	443	printf(" -k <boolean> 1=keep alive 0=reconnect (default 1)\n");
ecfaf6da	444	printf(" -r <keyspacelen> Use random keys for SET/GET/INCR\n");
	445	printf(" Using this option the benchmark will get/set keys\n");
	446	printf(" in the form mykey_rand000000012456 instead of constant\n");
	447	printf(" keys, the <keyspacelen> argument determines the max\n");
	448	printf(" number of values for the random number. For instance\n");
	449	printf(" if set to 10 only rand000000000000 - rand000000000009\n");
	450	printf(" range will be allowed.\n");
ed9b544e	451	printf(" -q Quiet. Just show query/sec values\n");
	452	printf(" -l Loop. Run the tests forever\n");
	453	exit(1);
	454	}
	455	}
	456	}
	457
	458	int main(int argc, char **argv) {
	459	client c;
	460
	461	signal(SIGHUP, SIG_IGN);
	462	signal(SIGPIPE, SIG_IGN);
	463
	464	config.numclients = 50;
	465	config.requests = 10000;
	466	config.liveclients = 0;
	467	config.el = aeCreateEventLoop();
	468	config.keepalive = 1;
	469	config.donerequests = 0;
	470	config.datasize = 3;
57172ffb	471	config.randomkeys = 0;
ecfaf6da	472	config.randomkeys_keyspacelen = 0;
ed9b544e	473	config.quiet = 0;
	474	config.loop = 0;
	475	config.latency = NULL;
	476	config.clients = listCreate();
	477	config.latency = zmalloc(sizeof(int)*(MAX_LATENCY+1));
	478
	479	config.hostip = "127.0.0.1";
	480	config.hostport = 6379;
	481
	482	parseOptions(argc,argv);
	483
	484	if (config.keepalive == 0) {
c3251497	485	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	486	}
	487
	488	do {
ed9b544e	489	prepareForBenchmark();
	490	c = createClient();
	491	if (!c) exit(1);
57172ffb	492	c->obuf = sdscatprintf(c->obuf,"SET foo_rand000000000000 %d\r\n",config.datasize);
ed9b544e	493	{
	494	char *data = zmalloc(config.datasize+2);
	495	memset(data,'x',config.datasize);
	496	data[config.datasize] = '\r';
	497	data[config.datasize+1] = '\n';
	498	c->obuf = sdscatlen(c->obuf,data,config.datasize+2);
	499	}
2fd30952	500	prepareClientForReply(c,REPLY_RETCODE);
ed9b544e	501	createMissingClients(c);
	502	aeMain(config.el);
	503	endBenchmark("SET");
	504
	505	prepareForBenchmark();
	506	c = createClient();
	507	if (!c) exit(1);
57172ffb	508	c->obuf = sdscat(c->obuf,"GET foo_rand000000000000\r\n");
2fd30952	509	prepareClientForReply(c,REPLY_BULK);
ed9b544e	510	createMissingClients(c);
	511	aeMain(config.el);
	512	endBenchmark("GET");
	513
	514	prepareForBenchmark();
	515	c = createClient();
	516	if (!c) exit(1);
57172ffb	517	c->obuf = sdscat(c->obuf,"INCR counter_rand000000000000\r\n");
2fd30952	518	prepareClientForReply(c,REPLY_INT);
ed9b544e	519	createMissingClients(c);
	520	aeMain(config.el);
	521	endBenchmark("INCR");
	522
	523	prepareForBenchmark();
	524	c = createClient();
	525	if (!c) exit(1);
	526	c->obuf = sdscat(c->obuf,"LPUSH mylist 3\r\nbar\r\n");
2fd30952	527	prepareClientForReply(c,REPLY_INT);
ed9b544e	528	createMissingClients(c);
	529	aeMain(config.el);
	530	endBenchmark("LPUSH");
	531
	532	prepareForBenchmark();
	533	c = createClient();
	534	if (!c) exit(1);
	535	c->obuf = sdscat(c->obuf,"LPOP mylist\r\n");
2fd30952	536	prepareClientForReply(c,REPLY_BULK);
ed9b544e	537	createMissingClients(c);
	538	aeMain(config.el);
	539	endBenchmark("LPOP");
	540
9f3c422c	541	prepareForBenchmark();
	542	c = createClient();
	543	if (!c) exit(1);
	544	c->obuf = sdscat(c->obuf,"PING\r\n");
2fd30952	545	prepareClientForReply(c,REPLY_RETCODE);
9f3c422c	546	createMissingClients(c);
	547	aeMain(config.el);
	548	endBenchmark("PING");
	549
2fd30952	550	prepareForBenchmark();
	551	c = createClient();
	552	if (!c) exit(1);
	553	c->obuf = sdscat(c->obuf,"LPUSH mylist 3\r\nbar\r\n");
	554	prepareClientForReply(c,REPLY_RETCODE);
	555	createMissingClients(c);
	556	aeMain(config.el);
	557	endBenchmark("LPUSH (again, in order to bench LRANGE)");
	558
	559	prepareForBenchmark();
	560	c = createClient();
	561	if (!c) exit(1);
	562	c->obuf = sdscat(c->obuf,"LRANGE mylist 0 99\r\n");
	563	prepareClientForReply(c,REPLY_MBULK);
	564	createMissingClients(c);
	565	aeMain(config.el);
	566	endBenchmark("LRANGE (first 100 elements)");
	567
ed9b544e	568	printf("\n");
	569	} while(config.loop);
	570
	571	return 0;
	572	}