--- db_bench_sqlite3.cc.orig    2011-07-28 23:46:04.000000000 +0400
+++ db_bench_sqlite3.cc.5x  2011-07-29 04:23:52.000000000 +0400
@@ -74,7 +74,7 @@
 static bool FLAGS_transaction = true;

 // If true, we enable Write-Ahead Logging
-static bool FLAGS_WAL_enabled = false;
+static bool FLAGS_WAL_enabled = true;

 inline
 static void ExecErrorCheck(int status, char *err_msg) {
@@ -454,10 +454,10 @@

     // Change locking mode to exclusive and create tables/index for database
     std::string locking_stmt = "PRAGMA locking_mode = EXCLUSIVE";
+    std::string wal_stmt = "PRAGMA wal_autocheckpoint = 4096";
     std::string create_stmt =
           "CREATE TABLE test (key blob, value blob, PRIMARY KEY(key))";
-    std::string index_stmt = "CREATE INDEX keyindex ON test (key)";
-    std::string stmt_array[] = { locking_stmt, create_stmt, index_stmt };
+    std::string stmt_array[] = { locking_stmt, wal_stmt, create_stmt };
     int stmt_array_length = sizeof(stmt_array) / sizeof(std::string);
     for (int i = 0; i < stmt_array_length; i++) {
       status = sqlite3_exec(db_, stmt_array[i].c_str(), NULL, NULL, &err_msg);
@@ -494,7 +494,7 @@
     std::string end_trans_str = "END TRANSACTION;";

     // Check for synchronous flag in options
-    std::string sync_stmt = (write_sync) ? "PRAGMA synchronous = FULL" :
+    std::string sync_stmt = (write_sync) ? "PRAGMA synchronous = NORMAL" :
                                            "PRAGMA synchronous = OFF";
     status = sqlite3_exec(db_, sync_stmt.c_str(), NULL, NULL, &err_msg);
     ExecErrorCheck(status, err_msg);