CONTRIBUTING file updated.

[redis.git] / src / redis-benchmark.c

diff --git a/src/redis-benchmark.c b/src/redis-benchmark.c
index f7ca312de2a3003352ba6c4048129ea17e6acdc7..1be4c07d913dcee9937b90c2f1457e6d32d8f966 100644 (file)
--- a/src/redis-benchmark.c
+++ b/src/redis-benchmark.c
@@ -62,6 +62,7 @@ static struct config {
     int randomkeys;
     int randomkeys_keyspacelen;
     int keepalive;
+    int pipeline;
     long long start;
     long long totlatency;
     long long *latency;
@@ -77,11 +78,12 @@ static struct config {
 typedef struct _client {
     redisContext *context;
     sds obuf;
-    char *randptr[10]; /* needed for MSET against 10 keys */
+    char *randptr[32]; /* needed for MSET against 10 keys */
     size_t randlen;
     unsigned int written; /* bytes of 'obuf' already written */
     long long start; /* start time of a request */
     long long latency; /* request latency */
+    int pending;    /* Number of pending requests (sent but no reply received) */
 } *client;
 
 /* Prototypes */
@@ -137,6 +139,7 @@ static void resetClient(client c) {
     aeDeleteFileEvent(config.el,c->context->fd,AE_READABLE);
     aeCreateFileEvent(config.el,c->context->fd,AE_WRITABLE,writeHandler,c);
     c->written = 0;
+    c->pending = config.pipeline;
 }
 
 static void randomizeClientKey(client c) {
@@ -182,19 +185,26 @@ static void readHandler(aeEventLoop *el, int fd, void *privdata, int mask) {
         fprintf(stderr,"Error: %s\n",c->context->errstr);
         exit(1);
     } else {
-        if (redisGetReply(c->context,&reply) != REDIS_OK) {
-            fprintf(stderr,"Error: %s\n",c->context->errstr);
-            exit(1);
-        }
-        if (reply != NULL) {
-            if (reply == (void*)REDIS_REPLY_ERROR) {
-                fprintf(stderr,"Unexpected error reply, exiting...\n");
+        while(c->pending) {
+            if (redisGetReply(c->context,&reply) != REDIS_OK) {
+                fprintf(stderr,"Error: %s\n",c->context->errstr);
                 exit(1);
             }
-
-            if (config.requests_finished < config.requests)
-                config.latency[config.requests_finished++] = c->latency;
-            clientDone(c);
+            if (reply != NULL) {
+                if (reply == (void*)REDIS_REPLY_ERROR) {
+                    fprintf(stderr,"Unexpected error reply, exiting...\n");
+                    exit(1);
+                }
+
+                freeReplyObject(reply);
+
+                if (config.requests_finished < config.requests)
+                    config.latency[config.requests_finished++] = c->latency;
+                c->pending--;
+                if (c->pending == 0) clientDone(c);
+            } else {
+                break;
+            }
         }
     }
 }
@@ -236,8 +246,10 @@ static void writeHandler(aeEventLoop *el, int fd, void *privdata, int mask) {
     }
 }
 
-static client createClient(const char *cmd, size_t len) {
+static client createClient(char *cmd, size_t len) {
+    int j;
     client c = zmalloc(sizeof(struct _client));
+
     if (config.hostsocket == NULL) {
         c->context = redisConnectNonBlock(config.hostip,config.hostport);
     } else {
@@ -251,23 +263,27 @@ static client createClient(const char *cmd, size_t len) {
             fprintf(stderr,"%s: %s\n",config.hostsocket,c->context->errstr);
         exit(1);
     }
-    c->obuf = sdsnewlen(cmd,len);
+    /* Suppress hiredis cleanup of unused buffers for max speed. */
+    c->context->reader->maxbuf = 0;
+    /* Queue N requests accordingly to the pipeline size. */
+    c->obuf = sdsempty();
+    for (j = 0; j < config.pipeline; j++)
+        c->obuf = sdscatlen(c->obuf,cmd,len);
     c->randlen = 0;
     c->written = 0;
+    c->pending = config.pipeline;
 
     /* Find substrings in the output buffer that need to be randomized. */
     if (config.randomkeys) {
-        char *p = c->obuf, *newline;
+        char *p = c->obuf;
         while ((p = strstr(p,":rand:")) != NULL) {
-            newline = strstr(p,"\r\n");
-            assert(newline-(p+6) == 12); /* 12 chars for randomness */
             assert(c->randlen < (signed)(sizeof(c->randptr)/sizeof(char*)));
             c->randptr[c->randlen++] = p+6;
-            p = newline+2;
+            p += 6;
         }
     }
 
-    redisSetReplyObjectFunctions(c->context,NULL);
+/*    redisSetReplyObjectFunctions(c->context,NULL); */
     aeCreateFileEvent(config.el,c->context->fd,AE_WRITABLE,writeHandler,c);
     listAddNodeTail(config.clients,c);
     config.liveclients++;
@@ -278,7 +294,7 @@ static void createMissingClients(client c) {
     int n = 0;
 
     while(config.liveclients < config.numclients) {
-        createClient(c->obuf,sdslen(c->obuf));
+        createClient(c->obuf,sdslen(c->obuf)/config.pipeline);
 
         /* Listen backlog is quite limited on most systems */
         if (++n > 64) {
@@ -322,7 +338,7 @@ static void showLatencyReport(void) {
     }
 }
 
-static void benchmark(const char *title, const char *cmd, int len) {
+static void benchmark(char *title, char *cmd, int len) {
     client c;
 
     config.title = title;
@@ -372,6 +388,10 @@ int parseOptions(int argc, const char **argv) {
             config.datasize = atoi(argv[++i]);
             if (config.datasize < 1) config.datasize=1;
             if (config.datasize > 1024*1024*1024) config.datasize = 1024*1024*1024;
+        } else if (!strcmp(argv[i],"-P")) {
+            if (lastarg) goto invalid;
+            config.pipeline = atoi(argv[++i]);
+            if (config.pipeline <= 0) config.pipeline=1;
         } else if (!strcmp(argv[i],"-r")) {
             if (lastarg) goto invalid;
             config.randomkeys = 1;
@@ -426,11 +446,12 @@ usage:
 " -k <boolean>       1=keep alive 0=reconnect (default 1)\n"
 " -r <keyspacelen>   Use random keys for SET/GET/INCR, random values for SADD\n"
 "  Using this option the benchmark will get/set keys\n"
-"  in the form mykey_rand000000012456 instead of constant\n"
+"  in the form mykey_rand:000000012456 instead of constant\n"
 "  keys, the <keyspacelen> argument determines the max\n"
 "  number of values for the random number. For instance\n"
-"  if set to 10 only rand000000000000 - rand000000000009\n"
+"  if set to 10 only rand:000000000000 - rand:000000000009\n"
 "  range will be allowed.\n"
+" -P <numreq>        Pipeline <numreq> requests. Default 1 (no pipeline).\n"
 " -q                 Quiet. Just show query/sec values\n"
 " --csv              Output in CSV format\n"
 " -l                 Loop. Run the tests forever\n"
@@ -446,6 +467,8 @@ usage:
 "   $ redis-benchmark -t set -n 1000000 -r 100000000\n\n"
 " Benchmark 127.0.0.1:6379 for a few commands producing CSV output:\n"
 "   $ redis-benchmark -t ping,set,get -n 100000 --csv\n\n"
+" Fill a list with 10000 random elements:\n"
+"   $ redis-benchmark -r 10000 -n 10000 lpush mylist ele:rand:000000000000\n\n"
     );
     exit(exit_status);
 }
@@ -494,6 +517,7 @@ int main(int argc, const char **argv) {
     aeCreateTimeEvent(config.el,1,showThroughput,NULL,NULL);
     config.keepalive = 1;
     config.datasize = 3;
+    config.pipeline = 1;
     config.randomkeys = 0;
     config.randomkeys_keyspacelen = 0;
     config.quiet = 0;