| author | Matti Laitinen <matti.t.laitinen@nokia.com> |
| Thu, 11 Feb 2010 15:32:31 +0200 | |
| changeset 2 | b9ab3b238396 |
| child 5 | 844b047e260d |
| permissions | -rw-r--r-- |
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Initial version of Performance Investigator under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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Matti Laitinen <matti.t.laitinen@nokia.com>
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Matti Laitinen <matti.t.laitinen@nokia.com>
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Matti Laitinen <matti.t.laitinen@nokia.com>
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Matti Laitinen <matti.t.laitinen@nokia.com>
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Initial version of Performance Investigator under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<title>Performance Measurement Methods</title> |
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Initial version of Performance Investigator under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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b9ab3b238396
Initial version of Performance Investigator under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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Initial version of Performance Investigator under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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b9ab3b238396
Initial version of Performance Investigator under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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b9ab3b238396
Initial version of Performance Investigator under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<h2>Performance Measurement Methods</h2> |
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Initial version of Performance Investigator under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<p> Characteristics of the software being analyzed will set rules and freedoms for performance measurements. Similarly, characteristics of the hardware architecture play a significant role in the mechanisms that can be used in performance measurement. If performing computations without a multitasking operating system, a thread-load distribution does not exist since there would be no threads. Computational load within a system that bases heavily on external interrupts is more unpredictable and complex from the software point of view than the load of a system in which most of the interrupts are caused by internal mechanisms known to the system. Therefore the measurement mechanisms have to suit the particular dynamics of the software being measured. Those mechanisms have to be feasible within the particular hardware. This makes things a bit more complicated for software based performance measurements since the same measurement software cannot necessarily be used for two systems with different run-time or input/output dynamics or hardware architecture. The methods and building blocks used in performance measurements include:</p> |
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b9ab3b238396
Initial version of Performance Investigator under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
diff
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<ul> |
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b9ab3b238396
Initial version of Performance Investigator under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<li><a href="../reference/methods/compile_time.htm">Compile-Time Symbolic Information</a></li> |
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Initial version of Performance Investigator under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<li><a href="../reference/methods/delayed_fn_call.htm">DFC, Delayed Function Call</a></li> |
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Initial version of Performance Investigator under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<li><a href="../reference/methods/dynamic_bin_res.htm">Dynamic Binary Resolution</a></li> |
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Initial version of Performance Investigator under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<li><a href="../reference/methods/file_sys_storing.htm">File System</a></li> |
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Initial version of Performance Investigator under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<li><a href="../reference/methods/int_stack.htm">Interrupt Stack</a></li> |
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Initial version of Performance Investigator under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
diff
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<li><a href="../reference/methods/kernel_containers.htm">Kernel Containers</a></li> |
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b9ab3b238396
Initial version of Performance Investigator under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<li><a href="../reference/methods/kernel_hook.htm">Kernel Hook</a></li> |
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Initial version of Performance Investigator under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<li><a href="../reference/methods/link_register.htm">Link Register value</a></li> |
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Initial version of Performance Investigator under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<li><a href="../reference/methods/os_thread.htm">OS Thread Name and ID</a></li> |
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b9ab3b238396
Initial version of Performance Investigator under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<li><a href="../reference/methods/periodic_int.htm">Periodic Interrupt</a></li> |
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Initial version of Performance Investigator under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<li><a href="../reference/methods/pgm_counter.htm">Program Counter value</a></li> |
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b9ab3b238396
Initial version of Performance Investigator under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<li><a href="../reference/methods/read_write_load.htm">Read/Write Load Characteristics (Memory and File system)</a></li> |
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b9ab3b238396
Initial version of Performance Investigator under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<li><a href="../reference/methods/rofs.htm">ROFS</a></li> |
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b9ab3b238396
Initial version of Performance Investigator under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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</ul> |
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b9ab3b238396
Initial version of Performance Investigator under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<p class="note"> <strong>NOTE:</strong> Many of these methods and building blocks are specific to the OMAP/ARM architecture and Symbian OS actually used.</p> |
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b9ab3b238396
Initial version of Performance Investigator under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<div id="footer">Copyright © 2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. <br>License: <a href="http://www.eclipse.org/legal/epl-v10.html">http://www.eclipse.org/legal/epl-v10.html</a></div> |
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b9ab3b238396
Initial version of Performance Investigator under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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</body> |
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b9ab3b238396
Initial version of Performance Investigator under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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</html> |