[svn-r5535] Purpose:

    New feature.

Description:
    Added a "small data" block allocation mechanism to the library, similar to
    the mechanism used for allocating metadata currently.

    See the RFC for more details:
        http://hdf.ncsa.uiuc.edu/RFC/SmallData/SmallData.html

    This reduces the number of I/O operations which hit the disk for my test
    program from 19 to 15 (i.e. from 393 to 15, overall).

Platforms tested:
    Solaris 2.7 (arabica) w/FORTRAN and FreeBSD 4.5 (sleipnir) w/C++

1 files changed, 3 insertions, 1 deletions

diff --git a/src/H5P.c b/src/H5P.c
index f71537a..76ef5d0 100644
--- a/src/H5P.c
+++ b/src/H5P.c
@@ -3778,6 +3778,8 @@ H5Pget_vlen_mem_manager(hid_t plist_id, H5MM_allocate_t *alloc_func/*out*/,
  *              Friday, August 25, 2000
  *
  * Modifications:
+ *      Quincey Koziol, June 5, 2002
+ *      Also sets the "small data" aggregation size
  *
  *-------------------------------------------------------------------------
  */
@@ -3797,7 +3799,7 @@ H5Pset_meta_block_size(hid_t fapl_id, hsize_t size)
     }
 
     /* Set values */
-    fapl->meta_block_size = size;
+    fapl->sdata_block_size = fapl->meta_block_size = size;
 
     FUNC_LEAVE (SUCCEED);
 }