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John Mainzer c8645048e2 [svn-r9686] Purpose:
Modify the cache code (H5C) to support automatic cache resizing to
adapt to the work load at run time.


Description:

   Different applications require different sized caches to maintain
an acceptable hit rate.  This set of changes attempts to provide the
ability to adjust to circumstances automatically.


Solution:

   Added highly configurable code to allow the user to either set a
fixed cache size, or allow the cache to grow and shrink according to
conditions.

   If enabled, cache size increases are triggered when the hit rate
drops below a user specified threshold in a user specified interval.

   Cache size reductions (if enabled) are triggered when either the
hit rate exceeds some user specified threshold over a user specified
interval, when the cache contains "enough" entries that haven't been
accessed for a user specified interval, or some mix of the above.

   See the header comments on the H5C_auto_size_ctl_t structure in
H5Cprivate.h for further details.

   At present, the cache resize configuration options are not
accessible via the user API.  Must add this.


Platforms tested:

   h5committested, hepingi (serial), and copper (parallel)


Misc. update:
2004-12-17 20:27:30 -05:00
bin [svn-r9677] Purpose: 2004-12-15 23:52:06 -05:00
c++ [svn-r9650] Purpose: 2004-12-10 16:20:00 -05:00
config [svn-r9684] Purpose: 2004-12-16 21:27:41 -05:00
doc [svn-r9674] Purpose: 2004-12-15 18:38:07 -05:00
examples [svn-r9526] Purpose: 2004-11-12 09:16:58 -05:00
fortran [svn-r9684] Purpose: 2004-12-16 21:27:41 -05:00
hl [svn-r9682] Purpose: 2004-12-16 21:22:27 -05:00
pablo [svn-r7424] 2003-08-27 12:04:21 -05:00
perform [svn-r9183] Purpose: New feature 2004-09-01 12:43:30 -05:00
release_docs [svn-r9685] Purpose: 2004-12-17 11:13:45 -05:00
src [svn-r9665] Purpose: 2004-12-13 23:25:50 -05:00
test [svn-r9615] Purpose: 2004-12-03 22:36:08 -05:00
testpar [svn-r9658] Purpose: 2004-12-13 12:00:57 -05:00
tools [svn-r9634] Purpose: 2004-12-07 14:35:51 -05:00
windows [svn-r9663] Purpose: 2004-12-13 20:56:47 -05:00
.autom4te.cfg [svn-r6378] Purpose: 2003-02-06 17:06:35 -05:00
aclocal.m4 [svn-r7119] Purpose: 2003-06-28 00:14:02 -05:00
acsite.m4 [svn-r9644] Purpose: 2004-12-08 15:31:25 -05:00
configure [svn-r9655] Snapshot version 1.7 release 44 2004-12-12 03:43:51 -05:00
configure.in [svn-r9655] Snapshot version 1.7 release 44 2004-12-12 03:43:51 -05:00
COPYING [svn-r8178] 2004-02-10 18:01:33 -05:00
Makefile.dist [svn-r1112] Changes since 19990301 1999-03-02 12:15:35 -05:00
Makefile.in [svn-r9644] Purpose: 2004-12-08 15:31:25 -05:00
MANIFEST [svn-r9686] Purpose: 2004-12-17 20:27:30 -05:00
README.txt [svn-r9655] Snapshot version 1.7 release 44 2004-12-12 03:43:51 -05:00

HDF5 version 1.7.45 currently under development
Please refer to the release_docs/INSTALL file for installation instructions.
------------------------------------------------------------------------------

This release is almost fully functional for the entire API defined in the
documentation, see the RELEASE.txt file in this directory for information
specific to this release of the library.  The INSTALL file contains
instructions on compiling and installing the library.  The INSTALL_parallel
file contains instructions on installing the parallel version of the
library.  The INSTALL* files can be found in the release_docs/ directory.

Documentation for this release is in the html directory.  Start with the
"index.html" in that directory.

Four mailing lists are currently set up for use with the HDF5
library.

   hdf5         - For general discussion of the HDF5 library with
		  other users.

   hdf5dev      - For discussion of the HDF5 library development
		  with developers and other interested parties.

   hdf5announce - For announcements of HDF5 related developments,
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To subscribe to a list, send mail to "majordomo@ncsa.uiuc.edu",
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Nearly daily code snapshots are now being provided at the following URL:
    ftp://hdf.ncsa.uiuc.edu/pub/outgoing/hdf5/snapshots
Please read the readme file in that directory before working with a library
snapshot.

The HDF5 website is located at http://hdf.ncsa.uiuc.edu/HDF5/

Bugs should be reported to hdfhelp@ncsa.uiuc.edu.