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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Implemented several performance enhancements in ArcSDE
Provider for selecting data,</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>based on feedback from Rational Quantify running on a VM on
the arcsde server:</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>1) Now maintain buffers on the connection object for
geometry conversion (for both reading and writing), instead of</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>calling malloc/free multiple times per geometry value.</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>2) Now cache the geometry factory on the connection, instead
of calling GetInstance() multiple times.</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Even though the geometry factory maintains its own cache,
it's more efficient for us to do it this way.</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>3) Now call ArcSDEReader::validate() at most once per row.</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>4) Now maintain a buffer for each string column and re-use
it, instead of calling new wchar_t[] and delete for each row.</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> Also, convert the multibyte strings to the
destination wchar_t, instead of to a temporary buffer on the stack, to avoid a
call to wcscpy().</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>5) Now create only one FdoByteArray object per geometry
value instead of possibly 2 (depending on which GetGeometry() method was
called).</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Also updated ArcSDEProvider.vcproj and UnitTest.vcproj to
use Quantify-friendly settings (namely "/fixed:no" in linker
additional settings).</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Measured performance running ArcSDE Provider unit tests in
release mode, with client on same machine as server:</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> - printf-based tests reported ~14.5% increase in
performance when calling all Get methods (geometry, double, string, etc) on
each row</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> and building a geometry based on the FGF
returned by the reader.</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> - Quantify-based tests reported much larger
gains (up to 2x), but I've heard before that Quantify can be misleading.</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Modified: branches\3.2.x\Providers\ArcSDE\Src\Provider\ArcSDEConnection.cpp
</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Modified: branches\3.2.x\Providers\ArcSDE\Src\Provider\ArcSDEConnection.h
</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Modified: branches\3.2.x\Providers\ArcSDE\Src\Provider\ArcSDEFeatureReader.cpp
</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Modified: branches\3.2.x\Providers\ArcSDE\Src\Provider\ArcSDEFilterToSql.cpp
</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Modified: branches\3.2.x\Providers\ArcSDE\Src\Provider\ArcSDEProvider.vcproj
</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Modified: branches\3.2.x\Providers\ArcSDE\Src\Provider\ArcSDEReader.cpp
</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Modified: branches\3.2.x\Providers\ArcSDE\Src\Provider\ArcSDEReader.h
</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Modified: branches\3.2.x\Providers\ArcSDE\Src\Provider\ArcSDEUtils.cpp
</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Modified: branches\3.2.x\Providers\ArcSDE\Src\Provider\ArcSDEUtils.h
</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Modified: branches\3.2.x\Providers\ArcSDE\Src\UnitTest\ArcSDETests.cpp
</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Modified: branches\3.2.x\Providers\ArcSDE\Src\UnitTest\ArcSDETests.h
</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Modified: branches\3.2.x\Providers\ArcSDE\Src\UnitTest\SelectTests.cpp
</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Modified: branches\3.2.x\Providers\ArcSDE\Src\UnitTest\SelectTests.h
</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Modified: branches\3.2.x\Providers\ArcSDE\Src\UnitTest\UnitTest.vcproj
</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Modified: branches\3.2.x\Utilities\Common\Inc\FdoCommonStringUtil.h
</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
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