Use precomptued objects for bulk and mbulk prefixes.

src/networking.c

@@ -474,6 +474,9 @@ void addReplyLongLong(redisClient *c, long long ll) {
 }
 
 void addReplyMultiBulkLen(redisClient *c, long length) {
+    if (length < REDIS_SHARED_BULKHDR_LEN)
+        addReply(c,shared.mbulkhdr[length]);
+    else
         addReplyLongLongWithPrefix(c,length,'*');
 }
 
@@ -496,6 +499,10 @@ void addReplyBulkLen(redisClient *c, robj *obj) {
             len++;
         }
     }
+
+    if (len < REDIS_SHARED_BULKHDR_LEN)
+        addReply(c,shared.bulkhdr[len]);
+    else
         addReplyLongLongWithPrefix(c,len,'$');
 }