* Version 1.2.0

    * Add --data-size-pattern
    * Add --key-pattern now has Gaussian distribution, and also --key-stddev, --key-median
    * Add --data-offset
    * Add --hide-histogram

Author: oranagra

CHANGES

@@ -1,3 +1,9 @@
+* Version 1.2.0
+    * Add --data-size-pattern
+    * Add --key-pattern now has Gaussian distribution, and also --key-stddev, --key-median
+    * Add --data-offset
+    * Add --hide-histogram
+
 * Version 1.1.0
     * Add --data-verify and --verify options to allow data verification.
     * Add --no-expiry option to ignore expiry of imported data.

client.cpp

@@ -471,8 +471,12 @@ void client::create_request(void)
     // are we set or get? this depends on the ratio
     if (m_set_ratio_count < m_config->ratio.a) {
         // set command
-    
-        data_object *obj = m_obj_gen->get_object(m_config->key_pattern[0] == 'R' ? 0 : 1);
+        int iter = OBJECT_GENERATOR_KEY_SET_ITER;
+        if (m_config->key_pattern[0] == 'R')
+            iter = OBJECT_GENERATOR_KEY_RANDOM;
+        else if (m_config->key_pattern[0] == 'G')
+            iter = OBJECT_GENERATOR_KEY_GAUSSIAN;
+        data_object *obj = m_obj_gen->get_object(iter);
         unsigned int key_len;
         const char *key = obj->get_key(&key_len);
         unsigned int value_len;
@@ -483,7 +487,7 @@ void client::create_request(void)
         benchmark_debug_log("SET key=[%.*s] value_len=%u expiry=%u\n",
             key_len, key, value_len, obj->get_expiry());
         cmd_size = m_protocol->write_command_set(key, key_len, value, value_len,
-            obj->get_expiry());
+            obj->get_expiry(), m_config->data_offset);
 
         m_pipeline.push(new client::request(rt_set, cmd_size, NULL, 1));
     } else if (m_get_ratio_count < m_config->ratio.b) {
@@ -500,7 +504,12 @@ void client::create_request(void)
             m_keylist->clear();
             while (m_keylist->get_keys_count() < keys_count) {
                 unsigned int keylen;
-                const char *key = m_obj_gen->get_key(m_config->key_pattern[2] == 'R' ? 0 : 2, &keylen);
+                int iter = OBJECT_GENERATOR_KEY_GET_ITER;
+                if (m_config->key_pattern[2] == 'R')
+                    iter = OBJECT_GENERATOR_KEY_RANDOM;
+                else if (m_config->key_pattern[2] == 'G')
+                    iter = OBJECT_GENERATOR_KEY_GAUSSIAN;
+                const char *key = m_obj_gen->get_key(iter, &keylen);
 
                 assert(key != NULL);
                 assert(keylen > 0);
@@ -521,12 +530,17 @@ void client::create_request(void)
             m_pipeline.push(new client::request(rt_get, cmd_size, NULL, m_keylist->get_keys_count()));
         } else {
             unsigned int keylen;
-            const char *key = m_obj_gen->get_key(m_config->key_pattern[2] == 'R' ? 0 : 2, &keylen);
+            int iter = OBJECT_GENERATOR_KEY_GET_ITER;
+            if (m_config->key_pattern[2] == 'R')
+                iter = OBJECT_GENERATOR_KEY_RANDOM;
+            else if (m_config->key_pattern[2] == 'G')
+                iter = OBJECT_GENERATOR_KEY_GAUSSIAN;
+            const char *key = m_obj_gen->get_key(iter, &keylen);
             assert(key != NULL);
             assert(keylen > 0);
 
             benchmark_debug_log("GET key=[%.*s]\n", keylen, key);
-            cmd_size = m_protocol->write_command_get(key, keylen);
+            cmd_size = m_protocol->write_command_get(key, keylen, m_config->data_offset);
 
             m_get_ratio_count++;
             m_pipeline.push(new client::request(rt_get, cmd_size, NULL, 1));
@@ -734,15 +748,20 @@ void verify_client::create_request(void)
     if (m_set_ratio_count < m_config->ratio.a) {
         // Prepare a GET request that will be compared against a previous
         // SET request.
-        data_object *obj = m_obj_gen->get_object(m_config->key_pattern[0] == 'R' ? 0 : 1);
+        int iter = OBJECT_GENERATOR_KEY_SET_ITER;
+        if (m_config->key_pattern[0] == 'R')
+            iter = OBJECT_GENERATOR_KEY_RANDOM;
+        else if (m_config->key_pattern[0] == 'G')
+            iter = OBJECT_GENERATOR_KEY_GAUSSIAN;
+        data_object *obj = m_obj_gen->get_object(iter);
         unsigned int key_len;
         const char *key = obj->get_key(&key_len);
         unsigned int value_len;
         const char *value = obj->get_value(&value_len);
         unsigned int cmd_size;
 
         m_set_ratio_count++;
-        cmd_size = m_protocol->write_command_get(key, key_len);
+        cmd_size = m_protocol->write_command_get(key, key_len, m_config->data_offset);
 
         m_pipeline.push(new verify_client::verify_request(rt_get,
             cmd_size, NULL, 1, key, key_len, value, value_len));
@@ -758,7 +777,12 @@ void verify_client::create_request(void)
             m_keylist->clear();
             while (m_keylist->get_keys_count() < keys_count) {
                 unsigned int keylen;
-                const char *key = m_obj_gen->get_key(m_config->key_pattern[2] == 'R' ? 0 : 2, &keylen);
+                int iter = OBJECT_GENERATOR_KEY_GET_ITER;
+                if (m_config->key_pattern[2] == 'R')
+                    iter = OBJECT_GENERATOR_KEY_RANDOM;
+                else if (m_config->key_pattern[2] == 'G')
+                    iter = OBJECT_GENERATOR_KEY_GAUSSIAN;
+                const char *key = m_obj_gen->get_key(iter, &keylen);
 
                 assert(key != NULL);
                 assert(keylen > 0);
@@ -769,7 +793,12 @@ void verify_client::create_request(void)
             m_get_ratio_count += keys_count;
         } else {
             unsigned int keylen;
-            m_obj_gen->get_key(m_config->key_pattern[2] == 'R' ? 0 : 2, &keylen);
+            int iter = OBJECT_GENERATOR_KEY_GET_ITER;
+            if (m_config->key_pattern[2] == 'R')
+                iter = OBJECT_GENERATOR_KEY_RANDOM;
+            else if (m_config->key_pattern[2] == 'G')
+                iter = OBJECT_GENERATOR_KEY_GAUSSIAN;
+            m_obj_gen->get_key(iter, &keylen);
             m_get_ratio_count++;
         }
 
@@ -1342,7 +1371,7 @@ void run_stats::summarize(totals& result) const
     result.m_bytes_sec = (double) ((result.m_bytes / 1024) / test_duration_sec);
 }
 
-void run_stats::print(FILE *out)
+void run_stats::print(FILE *out, bool histogram)
 {
     // aggregate all one_second_stats; we do this only if we have
     // one_second_stats, otherwise it means we're probably printing previously
@@ -1382,6 +1411,9 @@ void run_stats::print(FILE *out)
            m_totals.m_latency,
            m_totals.m_bytes_sec);
 
+    if (!histogram)
+        return;
+        
     fprintf(out,
             "\n\n"
             "Request Latency Distribution\n"

client.h

@@ -109,7 +109,7 @@ class run_stats {
     void merge(const run_stats& other);
     bool save_csv(const char *filename);
     void debug_dump(void);
-    void print(FILE *file);
+    void print(FILE *file, bool histogram);
 
     unsigned int get_duration(void);
     unsigned long int get_duration_usec(void);

configure.ac

@@ -16,7 +16,7 @@ dnl You should have received a copy of the GNU General Public License
 dnl along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 AC_PREREQ(2.59)
-AC_INIT(memtier_benchmark,1.0.2,yossigo@gmail.com)
+AC_INIT(memtier_benchmark,1.2.0,yossigo@gmail.com)
 AC_CONFIG_SRCDIR([memtier_benchmark.cpp])
 AC_CONFIG_HEADER([config.h])
 AM_INIT_AUTOMAKE

memtier_benchmark.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.40.4.
-.TH MEMTIER_BENCHMARK "1" "August 2013" "memtier_benchmark 1.0.2" "User Commands"
+.TH MEMTIER_BENCHMARK "1" "July 2014" "memtier_benchmark 1.2.0" "User Commands"
 .SH NAME
 memtier_benchmark \- NoSQL benchmark tool
 .SH SYNOPSIS
@@ -37,6 +37,9 @@ Name of output file (default: stdout)
 .TP
 \fB\-\-show\-config\fR
 Print detailed configuration before running
+.TP
+\fB\-\-hide\-histogram\fR
+Don't print detailed latency histogram
 .SS "Test Options:"
 .TP
 \fB\-n\fR, \fB\-\-requests\fR=\fINUMBER\fR
@@ -73,6 +76,10 @@ DB number to select, when testing a redis server
 \fB\-d\fR  \fB\-\-data\-size\fR=\fISIZE\fR
 Object data size (default: 32)
 .TP
+\fB\-\-data\-offset\fR=\fIOFFSET\fR
+Actual size of value will be data\-size + data\-offset
+Will use SETRANGE / GETRANGE (default: 0)
+.TP
 \fB\-R\fR  \fB\-\-random\-data\fR
 Indicate that data should be randomized
 .TP
@@ -82,6 +89,12 @@ Use random\-sized items in the specified range (min\-max)
 \fB\-\-data\-size\-list\fR=\fILIST\fR
 Use sizes from weight list (size1:weight1,..sizeN:weightN)
 .TP
+\fB\-\-data\-size\-pattern\fR=\fIR\fR|S
+Use together with data\-size\-range
+when set to R, a random size from the defined data sizes will be used,
+when set to S, the defined data sizes will be evenly distributed across
+the key range, see \fB\-\-key\-maximum\fR (default R)
+.TP
 \fB\-\-expiry\-range\fR=\fIRANGE\fR
 Use random expiry values from the specified range
 .SS "Imported Data Options:"
@@ -113,6 +126,15 @@ Key ID maximum value (default: 10000000)
 .TP
 \fB\-\-key\-pattern\fR=\fIPATTERN\fR
 Set:Get pattern (default: R:R)
+G for Gaussian distribution, R for uniform Random, S for Sequential
+.TP
+\fB\-\-key\-stddev\fR
+The standard deviation used in the Gaussian distribution
+(default is key range / 6)
+.TP
+\fB\-\-key\-median\fR
+The median point used in the Gaussian distribution
+(default is the center of the key range)
 .TP
 \fB\-\-help\fR
 Display this help