Changeset 2131 for pjproject/trunk/pjsip/include/pjsip/sip_config.h

Timestamp:

Jul 13, 2008 1:12:36 PM (16 years ago)

Author:

bennylp

Message:

Ticket #564: Reduce the memory usage for default pjsip settings

File:

• pjproject/trunk/pjsip/include/pjsip/sip_config.h (modified) (4 diffs)

pjproject/trunk/pjsip/include/pjsip/sip_config.h

@@ -158 +158 @@
 /**
  * Specify maximum transaction count in transaction hash table.
- * Default value is 16*1024
+ * For efficiency, the value should be 2^n-1 since it will be
+ * rounded up to 2^n.
+ *
+ * Default value is 1023
  */
 #ifndef PJSIP_MAX_TSX_COUNT
-#   define PJSIP_MAX_TSX_COUNT          (16*1024)
+#   define PJSIP_MAX_TSX_COUNT          (1024-1)
 #endif
 
 /**
  * Specify maximum number of dialogs in the dialog hash table.
- * Default value is 16*1024.
+ * For efficiency, the value should be 2^n-1 since it will be
+ * rounded up to 2^n.
+ *
+ * Default value is 511.
  */
 #ifndef PJSIP_MAX_DIALOG_COUNT
-#   define PJSIP_MAX_DIALOG_COUNT       (16*1024)
+#   define PJSIP_MAX_DIALOG_COUNT       (512-1)
 #endif
 
@@ -554 +560 @@
  */
 #ifndef PJSIP_POOL_LEN_UA
-#   define PJSIP_POOL_LEN_UA            4000
+#   define PJSIP_POOL_LEN_UA            512
 #endif
 
@@ -561 +567 @@
  */
 #ifndef PJSIP_POOL_INC_UA
-#   define PJSIP_POOL_INC_UA            4000
+#   define PJSIP_POOL_INC_UA            512
 #endif
 
@@ -572 +578 @@
 
 /**
- * Initial memory size for transaction layer
+ * Initial memory size for transaction layer. The bulk of pool usage
+ * for transaction layer will be used to create the hash table, so 
+ * setting this value too high will not help too much with reducing
+ * fragmentation and the memory will most likely be wasted.
  */
 #ifndef PJSIP_POOL_TSX_LAYER_LEN
-#   define PJSIP_POOL_TSX_LAYER_LEN     4000
-#endif
-
-/**
- * Memory increment for transaction layer.
+#   define PJSIP_POOL_TSX_LAYER_LEN     512
+#endif
+
+/**
+ * Memory increment for transaction layer. The bulk of pool usage
+ * for transaction layer will be used to create the hash table, so 
+ * setting this value too high will not help too much with reducing
+ * fragmentation and the memory will most likely be wasted.
  */
 #ifndef PJSIP_POOL_TSX_LAYER_INC
-#   define PJSIP_POOL_TSX_LAYER_INC     4000
+#   define PJSIP_POOL_TSX_LAYER_INC     512
 #endif