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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hi,<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>I just compiled SpiderMonkey 1.8.5 and V8 into the
same app to simulate behaviour of a VXML browser. The purpose was to see if it
was worth switching from V8 to SpiderMonkey on the JavaScript cluster we use
for VXML/CCXML. The idea was that we maybe could upgrade FS and re-use this
work in FS rather than going through the pain of maintaining a separate
JavaScript engine. <o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>SpiderMonkey 1-8-5 execute one of the test scripts ca
4000 times per second. V8 managed 60,000 executions per second on the same
script.<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>It&#8217;s a arger difference than I expected based
on some of the benchmarks I have seen, but well speed alone is not everything. V8
do not support Sparc </span></font><font size=2 face=Wingdings><span
lang=EN-GB style='font-size:10.0pt;font-family:Wingdings'>L</span></font><font
size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial'> etc.<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Jan<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

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