[svn-r4303] Purpose:

Bringing 'last minute' release branch edits into development branch.
Description:
    Chunking.html, Filters.html, and Performance.html
        Added links, with explanatory note, from the first 2 files above
        to the new freespace management section in Performance.html.
Platforms tested:
    IE 5

doc/html/Chunking.html

@@ -58,6 +58,7 @@
       <li><a href="#S3">3. Cache Efficiency</a>
       <li><a href="#S4">4. Fragmentation</a>
       <li><a href="#S5">5. File Storage Overhead</a>
+      <li><a href="#S6">6. Chunk Compression</a>
     </ul>
 
     <h2><a name="S1">1. Introduction</a></h2>
@@ -215,7 +216,22 @@
       <code>H5Pset_istore_k()</code> (increasing the out degree actually
       increases file overhead while decreasing the number of nodes).
 
-    <hr>
+
+    <h2><a name="S6">6. Chunk Compression</a></h2>
+
+    <p>Dataset chunks can be compressed through the use of filters.
+     See the chapter &ldquo;<a href="Filters.html">Filters in HDF5</a>.&rdquo;
+
+    <p>Reading and rewriting compressed chunked data can result in holes 
+     in an HDF5 file.  In time, enough such holes can increase the 
+     file size enough to impair application or library performance 
+     when working with that file.  See
+     &ldquo;<a href="Performance.html#Freespace">Freespace Management</a>&rdquo;
+     in the chapter
+     &ldquo;<a href="Performance.html">Performance Analysis and Issues</a>.&rdquo;
+
+
+<hr>
 
     <p><a name="fn1">Footnote 1:</a> Parallel versions of the library
       can access individual bytes of a chunk when the underlying file
@@ -224,7 +240,6 @@
     <p><a name="fn2">Footnote 2:</a> The raw data chunk cache was
       added before the second alpha release.
 
-
 <hr>
 <center>
 <table border=0 width=98%>
@@ -273,12 +288,13 @@
 
 <!-- Created: Tue Oct 20 12:38:40 EDT 1998 -->
 <!-- hhmts start -->
-Last modified:  16 February 2001
+Last modified:  2 August 2001
 <!-- hhmts end -->
 
 <br>
 Describes HDF5 Release 1.5, Unreleased Development Branch
 
 
+
   </body>
 </html>

doc/html/Filters.html

@@ -55,7 +55,8 @@
 
     <h2>1. Introduction</h2>
 
-    <p>HDF5 allows chunked data to pass through user-defined filters
+    <p>HDF5 allows chunked data<sup><a href="#fn1">1</a></sup> 
+      to pass through user-defined filters
       on the way to or from disk.  The filters operate on chunks of an
       <code>H5D_CHUNKED</code> dataset can be arranged in a pipeline
       so output of one filter becomes the input of the next filter.
@@ -506,6 +507,21 @@ H5Z: filter statistics accumulated over life of library:
       </center>
 
 
+<hr>
+
+
+    <p><a name="fn1">Footnote 1:</a> Dataset chunks can be compressed 
+     through the use of filters.  Developers should be aware that 
+     reading and rewriting compressed chunked data can result in holes 
+     in an HDF5 file.  In time, enough such holes can increase the 
+     file size enough to impair application or library performance 
+     when working with that file.  See
+     &ldquo;<a href="Performance.html#Freespace">Freespace Management</a>&rdquo;
+     in the chapter
+     &ldquo;<a href="Performance.html">Performance Analysis and Issues</a>.&rdquo;
+
+
+
 <hr>
 <center>
 <table border=0 width=98%>
@@ -554,7 +570,7 @@ H5Z: filter statistics accumulated over life of library:
 
 <!-- Created: Fri Apr 17 13:39:35 EDT 1998 -->
 <!-- hhmts start -->
-Last modified:  17 December 1999
+Last modified:  2 August 2001
 <!-- hhmts end -->
 
 <br>

doc/html/Performance.html

@@ -63,7 +63,9 @@
       <a href="Chunking.html">Dataset Chunking Issues</a> elsewhere
       in this <cite>User's Guide</cite>.
 
+    <a name="Freespace">
     <h2>3. Freespace Management</h2>
+    </a>
 
      <p>HDF5 does not yet manage freespace as effectively as it might.
       While a file is opened, the library actively tracks and re-uses
@@ -235,7 +237,7 @@
 
 <!-- Created: Thu Oct 14 16:46:00 CDT 1999 -->
 <!-- hhmts start -->
-Last modified: 11 July 2001
+Last modified: 2 August 2001
 <!-- hhmts end -->
 
 <br>