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diff --git a/doc/html/Performance.html b/doc/html/Performance.html new file mode 100644 index 0000000..b43dd78 --- /dev/null +++ b/doc/html/Performance.html @@ -0,0 +1,162 @@ +<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN"> +<html> + <head> + <title>Performance</title> + </head> + + <body bgcolor="#FFFFFF"> + + +<hr> +<center> +<table border=0 width=98%> +<tr><td valign=top align=left> + <a href="H5.intro.html">Introduction to HDF5</a> <br> + <a href="RM_H5Front.html">HDF5 Reference Manual</a> <br> + <a href="index.html">Other HDF5 documents and links</a> <br> + <!-- + <a href="Glossary.html">Glossary</a><br> + --> +</td> +<td valign=top align=right> + And in this document, the + <a href="H5.user.html"><strong>HDF5 User's Guide:</strong></a> + <br> + <a href="Files.html">Files</a> + <a href="Datasets.html">Datasets</a> + <a href="Datatypes.html">Datatypes</a> + <a href="Dataspaces.html">Dataspaces</a> + <a href="Groups.html">Groups</a> + <br> + <a href="References.html">References</a> + <a href="Attributes.html">Attributes</a> + <a href="Properties.html">Property Lists</a> + <a href="Errors.html">Error Handling</a> + <br> + <a href="Filters.html">Filters</a> + <a href="Caching.html">Caching</a> + <a href="Chunking.html">Chunking</a> + <a href="MountingFiles.html">Mounting Files</a> + <br> + Performance + <a href="Debugging.html">Debugging</a> + <a href="Environment.html">Environment</a> + <a href="ddl.html">DDL</a> + <br> + <a href="Ragged.html">Ragged Arrays</a> +</td></tr> +</table> +</center> +<hr> + + + <h1>Performance Analysis and Issues</h1> + + <h2>1. Introduction</h2> + + <p>This section includes brief discussions of performance issues + in HDF5 and performance analysis tools for HDF5 or pointers to + such discussions. + + <h2>2. Dataset Chunking</h2> + + Appropriate dataset chunking can make a siginificant difference + in HDF5 performance. This topic is discussed in + <a href="Chunking.html">Dataset Chunking Issues</a> elsewhere + in this <cite>User's Guide</cite>. + + <h2>3. Use of the Pablo Instrumentation of HDF5</h2> + + Pablo HDF5 Trace software provides a means of measuring the + performance of programs using HDF5. + + <p>The Pablo software consists + of an instrumented copy of the HDF5 library, the Pablo Trace and + Trace Extensions libraries, and some utilities for processing the + output. The instrumented version of the HDF5 library has hooks + inserted into the HDF5 code which call routines in the Pablo Trace + library just after entry to each instrumented HDF5 routine and + just prior to exit from the routine. The Pablo Trace Extension + library has programs that track the I/O activity between the + entry and exit of the HDF5 routine during execution. + + <p>A few lines of code must be inserted in the user's main program + to enable tracing and to specify which HDF5 procedures are to be + traced. The program is linked with the special HDF5 and Pablo + libraries to produce an executable. Running this executable on + a single processor produces an output file called the trace file + which contains records, called Pablo Self-Defining Data Format + (SDDF) records, which can later be analyzed using the + HDF5 Analysis Utilities. The HDF5 Analysis Utilites can be used + to interpret the SDDF records in the trace files to produce a + report describing the HDF5 IO activity that occurred during + execution. + + <p>For further instructions, see the file <code>READ_ME</code> + in the <code> $(toplevel)/hdf5/pablo/ </code> subdirectory of + the HDF5 source code distribution. + + <p>For further information about Pablo and the + Self-Defining Data Format, visit the Pablo website at + <code><a href="http://www-pablo.cs.uiuc.edu/">http://www-pablo.cs.uiuc.edu/</a></code>. + + +<hr> +<center> +<table border=0 width=98%> +<tr><td valign=top align=left> + <a href="H5.intro.html">Introduction to HDF5</a> <br> + <a href="RM_H5Front.html">HDF5 Reference Manual</a> <br> + <a href="index.html">Other HDF5 documents and links</a> <br> + <!-- + <a href="Glossary.html">Glossary</a><br> + --> +</td> +<td valign=top align=right> + And in this document, the + <a href="H5.user.html"><strong>HDF5 User's Guide:</strong></a> + <br> + <a href="Files.html">Files</a> + <a href="Datasets.html">Datasets</a> + <a href="Datatypes.html">Datatypes</a> + <a href="Dataspaces.html">Dataspaces</a> + <a href="Groups.html">Groups</a> + <br> + <a href="References.html">References</a> + <a href="Attributes.html">Attributes</a> + <a href="Properties.html">Property Lists</a> + <a href="Errors.html">Error Handling</a> + <br> + <a href="Filters.html">Filters</a> + <a href="Caching.html">Caching</a> + <a href="Chunking.html">Chunking</a> + <a href="MountingFiles.html">Mounting Files</a> + <br> + Performance + <a href="Debugging.html">Debugging</a> + <a href="Environment.html">Environment</a> + <a href="ddl.html">DDL</a> + <br> + <a href="Ragged.html">Ragged Arrays</a> +</td></tr> +</table> +</center> + + + +<hr> +<address> +<a href="mailto:hdfhelp@ncsa.uiuc.edu">HDF Help Desk</a> +</address> + +<!-- Created: Thu Oct 14 16:46:00 CDT 1999 --> +<!-- hhmts start --> +Last modified: 14 October 1999 +<!-- hhmts end --> + +<br> +Describes HDF5 Release 1.4 Beta, December 2000 + + + </body> +</html> |