Define a separately configurable XLOG_BLCKSZ symbol for the page size

[postgresql] / src / include / pg_config_manual.h

diff --git a/src/include/pg_config_manual.h b/src/include/pg_config_manual.h
index b36714b87bd2e03b5e3011e6b492aff36f977b35..e41b11e8319a2cbb51e36a186ea5d08924e264f4 100644 (file)
--- a/src/include/pg_config_manual.h
+++ b/src/include/pg_config_manual.h
@@ -6,7 +6,7 @@
  * for developers.     If you edit any of these, be sure to do a *full*
  * rebuild (and an initdb if noted).
  *
- * $PostgreSQL: pgsql/src/include/pg_config_manual.h,v 1.16 2005/03/29 03:01:32 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/pg_config_manual.h,v 1.21 2006/04/03 23:35:05 tgl Exp $
  *------------------------------------------------------------------------
  */
 
@@ -43,9 +43,20 @@
  */
 #define RELSEG_SIZE (0x40000000 / BLCKSZ)
 
+/*
+ * Size of a WAL file block.  This need have no particular relation to BLCKSZ.
+ * XLOG_BLCKSZ must be a power of 2, and if your system supports O_DIRECT I/O,
+ * XLOG_BLCKSZ must be a multiple of the alignment requirement for direct-I/O
+ * buffers, else direct I/O may fail.
+ *
+ * Changing XLOG_BLCKSZ requires an initdb.
+ */
+#define XLOG_BLCKSZ            8192
+
 /*
  * XLOG_SEG_SIZE is the size of a single WAL file.     This must be a power of 2
- * and larger than BLCKSZ (preferably, a great deal larger than BLCKSZ).
+ * and larger than XLOG_BLCKSZ (preferably, a great deal larger than
+ * XLOG_BLCKSZ).
  *
  * Changing XLOG_SEG_SIZE requires an initdb.
  */
@@ -74,6 +85,11 @@
  */
 #define INDEX_MAX_KEYS         32
 
+/*
+ * Number of spare LWLocks to allocate for user-defined add-on code.
+ */
+#define NUM_USER_DEFINED_LWLOCKS       4
+
 /*
  * Define this to make libpgtcl's "pg_result -assign" command process
  * C-style backslash sequences in returned tuple data and convert
@@ -150,15 +166,14 @@
 /*
  * Disable UNIX sockets for those operating system.
  */
-#if defined(__QNX__) || defined(__BEOS__) || defined(WIN32)
+#if defined(WIN32)
 #undef HAVE_UNIX_SOCKETS
 #endif
 
 /*
  * Define this if your operating system supports link()
  */
-#if !defined(__QNX__) && !defined(__BEOS__) && \
-       !defined(WIN32) && !defined(__CYGWIN__)
+#if !defined(WIN32) && !defined(__CYGWIN__)
 #define HAVE_WORKING_LINK 1
 #endif
 
@@ -229,11 +244,15 @@
  */
 /* #define WAL_DEBUG */
 
+/*
+ * Enable tracing of resource consumption during sort operations;
+ * see also the trace_sort GUC var.  For 8.1 this is enabled by default.
+ */
+#define TRACE_SORT 1
+
 /*
  * Other debug #defines (documentation, anyone?)
  */
-/* #define IPORTAL_DEBUG  */
-/* #define HEAPDEBUGALL  */
+/* #define HEAPDEBUGALL */
 /* #define ACLDEBUG */
 /* #define RTDEBUG */
-/* #define GISTDEBUG */