/rtmp/fsync.diff

diff --git a/contrib/pg_test_fsync/pg_test_fsync.c b/contrib/pg_test_fsync/pg_test_fsync.c
index 23800d6..d075483 100644
*** a/contrib/pg_test_fsync/pg_test_fsync.c
--- b/contrib/pg_test_fsync/pg_test_fsync.c
*************** test_sync(int writes_per_op)
*** 175,183 ****
  	bool		fs_warning = false;
  
  	if (writes_per_op == 1)
! 		printf("\nCompare file sync methods using one %dK write:\n", XLOG_BLCKSZ_K);
  	else
! 		printf("\nCompare file sync methods using two %dK writes:\n", XLOG_BLCKSZ_K);
  	printf("(in wal_sync_method preference order, except fdatasync\n");
  	printf("is Linux's default)\n");
  
--- 175,183 ----
  	bool		fs_warning = false;
  
  	if (writes_per_op == 1)
! 		printf("\nCompare file sync methods using one %dkB write:\n", XLOG_BLCKSZ_K);
  	else
! 		printf("\nCompare file sync methods using two %dkB writes:\n", XLOG_BLCKSZ_K);
  	printf("(in wal_sync_method preference order, except fdatasync\n");
  	printf("is Linux's default)\n");
  
*************** static void
*** 391,404 ****
  test_open_syncs(void)
  {
  	printf("\nCompare open_sync with different write sizes:\n");
! 	printf("(This is designed to compare the cost of writing 16K\n");
  	printf("in different write open_sync sizes.)\n");
  
! 	test_open_sync("16K open_sync write", 16);
! 	test_open_sync(" 8K open_sync writes", 8);
! 	test_open_sync(" 4K open_sync writes", 4);
! 	test_open_sync(" 2K open_sync writes", 2);
! 	test_open_sync(" 1K open_sync writes", 1);
  }
  
  /*
--- 391,404 ----
  test_open_syncs(void)
  {
  	printf("\nCompare open_sync with different write sizes:\n");
! 	printf("(This is designed to compare the cost of writing 16kB\n");
  	printf("in different write open_sync sizes.)\n");
  
! 	test_open_sync("16kB open_sync write", 16);
! 	test_open_sync(" 8kB open_sync writes", 8);
! 	test_open_sync(" 4kB open_sync writes", 4);
! 	test_open_sync(" 2kB open_sync writes", 2);
! 	test_open_sync(" 1kB open_sync writes", 1);
  }
  
  /*
*************** test_non_sync(void)
*** 517,523 ****
  	/*
  	 * Test a simple write without fsync
  	 */
! 	printf("\nNon-Sync'ed %dK writes:\n", XLOG_BLCKSZ_K);
  	printf(LABEL_FORMAT, "write");
  	fflush(stdout);
  
--- 517,523 ----
  	/*
  	 * Test a simple write without fsync
  	 */
! 	printf("\nNon-Sync'ed %dkB writes:\n", XLOG_BLCKSZ_K);
  	printf(LABEL_FORMAT, "write");
  	fflush(stdout);