diff --git a/src/sfxd.c b/src/sfxd.c
index 74abc41..fd5a318 100644
--- a/src/sfxd.c
+++ b/src/sfxd.c
@@ -1,8 +1,10 @@
 #include "common.h"
 #include "miniaudio.h"
 #include <getopt.h>
+#include <limits.h>
 #include <stdarg.h>
 #include <stdbool.h>
+#include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -33,6 +35,8 @@ struct audio_data {
 struct sfx_pool {
   struct sfx_pool_item {
     char key[KEY_LENGTH];
+    char path[PATH_MAX];
+
     ma_sound *sounds;
     int last_index;
 
@@ -62,8 +66,17 @@ struct ipc_data ipc = { 0 };
 struct audio_data audio = { 0 };
 struct sfx_pool sounds_pool = { 0, 0, 0 };
 
-void usage(int argc, char **argv) {
+#ifndef NO_COUNTERS
+struct global_counters {
+  uint64_t pool_read;
+  uint64_t pool_write;
+  uint64_t hash_misses_write;
+  uint64_t hash_misses_read;
+} global_counters = { 0 };
+#endif
 
+void usage(int argc, char **argv) {
+  // TODO
 }
 
 int main(int argc, char **argv) {
@@ -177,7 +190,7 @@ void execute_command(struct msg_target tgt, const char *command, const char *par
       send_txt(tgt, "DBG: pool overflow: %d/%d (%.3f%%)\n",
           sounds_pool.use, sounds_pool.cap,
           100.0 * sounds_pool.use / (float)sounds_pool.cap);
-      sfx_pool_grow(sounds_pool.cap + 32);
+      sfx_pool_grow((int)(sounds_pool.cap * 1.5));
     }
 
     send_txt(tgt, "Loading audio key=%s from %s\n", key, path);
@@ -256,15 +269,29 @@ void execute_command(struct msg_target tgt, const char *command, const char *par
   } else if (0 == strcmp(command, "dump")) {
     for (int i = 0; i < sounds_pool.cap; i++) {
       struct sfx_pool_item item = sounds_pool.sounds[i];
-      if (item.key[0] != '\0') {
+      if (item.key[0] == '\0') {
+        send_txt(tgt, "%3d (unused)\n", i);
+      } else {
         send_txt(tgt, "%3d vol=%7.5f pitch=%7.5f..%7.5f @%2d (0x%08x) \"%s\"\n",
             i, item.volume, item.pitch_min, item.pitch_max, item.last_index, adler32(item.key, strlen(item.key)), item.key);
       }
     }
   } else if (0 == strcmp(command, "source")) {
     execute_file(tgt, params, 0);
+  } else if (0 == strcmp(command, "dbg:counters")) {
+#ifdef NO_COUNTERS
+    send_txt(tgt, "ERR: counters are disabled at compile-time with NO_COUNTERS feature flag.");
+#else
+    send_txt(tgt, ".pool_read = %ld\n", global_counters.pool_read);
+    send_txt(tgt, ".pool_write  = %ld\n", global_counters.pool_write);
+    send_txt(tgt, ".hash_misses_read = %ld\n", global_counters.hash_misses_read);
+    send_txt(tgt, ".hash_misses_write = %ld\n", global_counters.hash_misses_write);
+    send_txt(tgt, ".pool.use = %d\n", sounds_pool.use);
+    send_txt(tgt, ".pool.cap = %d\n", sounds_pool.cap);
+#endif
   } else if (0 == strcmp(command, "")) {
-
+  } else {
+      send_txt(tgt, "ERR: unknown command: %s\n", command);
   } // commands
 }
 
@@ -336,6 +363,12 @@ void sfx_pool_grow(int size) {
     uint32_t new_hash = adler32(sounds_pool.sounds[i].key, strlen(sounds_pool.sounds[i].key));
     for (int offset = 0; offset < size; offset++) {
       int index = (new_hash + offset) % size;
+#ifndef NO_COUNTERS
+      global_counters.pool_write++;
+      if (offset != 0) {
+        global_counters.hash_misses_write++;
+      }
+#endif
       if (new_items[index].key[0] == '\0') {
         memcpy(&new_items[index], &sounds_pool.sounds[i], sizeof(struct sfx_pool_item));
         used++;
@@ -356,6 +389,12 @@ struct sfx_pool_item *sfx_pool_lookup(const char *key) {
   for (int offset = 0; offset < sounds_pool.cap; offset++) {
     int index = (hash + offset) % sounds_pool.cap;
     if (0 == strncmp(key, sounds_pool.sounds[index].key, KEY_LENGTH)) {
+#ifndef NO_COUNTERS
+      global_counters.pool_read++;
+      if (offset != 0) {
+        global_counters.hash_misses_read++;
+      }
+#endif
       return &sounds_pool.sounds[index];
     }
   }
@@ -367,6 +406,12 @@ struct sfx_pool_item *sfx_pool_find_place_for(const char *key) {
   for (int offset = 0; offset < sounds_pool.cap; offset++) {
     int index = (hash + offset) % sounds_pool.cap;
     if (sounds_pool.sounds[index].key[0] == '\0' || 0 == strncmp(sounds_pool.sounds[index].key, key, KEY_LENGTH)) {
+#ifndef NO_COUNTERS
+      global_counters.pool_write++;
+      if (offset != 0) {
+        global_counters.hash_misses_write++;
+      }
+#endif
       return &sounds_pool.sounds[index];
     }
   }
@@ -403,6 +448,7 @@ struct sfx_pool_item *sfx_pool_load(const char *key, const char *path) {
   }
 
   strncpy(sound->key, key, KEY_LENGTH);
+  strncpy(sound->path, path, PATH_MAX);
   sounds_pool.use++;
 
   return sound;