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Diffstat (limited to 'doc/html/Filters.html')
| -rw-r--r-- | doc/html/Filters.html | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/doc/html/Filters.html b/doc/html/Filters.html index f7cd7f9..bf3f55a 100644 --- a/doc/html/Filters.html +++ b/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. @@ -507,6 +508,21 @@ H5Z: filter statistics accumulated over life of library: <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 + “<a href="Performance.html#Freespace">Freespace Management</a>” + in the chapter + “<a href="Performance.html">Performance Analysis and Issues</a>.” + + + +<hr> <center> <table border=0 width=98%> <tr><td valign=top align=left> @@ -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: 11 July 2001 <!-- hhmts end --> <br> |