Use fdatasync() to improve performance.
Linux has a working fdatasync() so we should use it!
This change alone improves performance by around 20% by reducing
the number of synchronous I/O writes of irrelevant metadata
changes.
Change-Id: Iebe0c32a7e018ec0ced2347b7d62b2b7dc5aa376
diff --git a/dist/Android.mk b/dist/Android.mk
index 3ea36c1..e380c9b 100644
--- a/dist/Android.mk
+++ b/dist/Android.mk
@@ -39,7 +39,7 @@
LOCAL_LDLIBS += -lpthread -ldl
endif
-LOCAL_CFLAGS += $(common_sqlite_flags) -DUSE_PREAD64
+LOCAL_CFLAGS += $(common_sqlite_flags) -DUSE_PREAD64 -Dfdatasync=fdatasync
LOCAL_SHARED_LIBRARIES := libdl
diff --git a/dist/sqlite3.c b/dist/sqlite3.c
index fe17797..7f46e6e 100644
--- a/dist/sqlite3.c
+++ b/dist/sqlite3.c
@@ -25,10 +25,6 @@
#ifndef SQLITE_API
# define SQLITE_API
#endif
-// Begin Android Add
-#define fdatasync fsync
-#undef __APPLE__
-// End Android Add
/************** Begin file sqliteInt.h ***************************************/
/*
** 2001 September 15
