Monitor JIT performance.

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	Monitor JIT performance.

BitDrifter

8-18-2007 5:24 AM

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tags:

jit, asp.net, programming, compilation, performance

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/887ebeaa-be18-4f44-8bb9-686f2e1da6ba/D4A49E03-3AA9-463F-9F61-352AA71F8ED2/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://msdn2.microsoft.com/en-us/library/ms998581.aspx" href="http://msdn2.microsoft.com/en-us/library/ms998581.aspx" style="font-size: 11px;">msdn2.microsoft.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://msdn2.microsoft.com/en-us/library/ms998581.aspx"><H2 class="dtH1">Set an Appropriate Warm-up Time</H2> <P>ACT supports warm-up times. The warm-up time is used in a test script to ensure your application reaches a steady state before the test tool starts to record results. The warm-up time causes ACT to ignore the data from the first few seconds of a test run. This is particularly important for ASP.NET applications because the first few requests trigger just-in-time (JIT) compilation and caching.</P> <P>The warm up time is particularly relevant for short duration tests, so that the initial startup time does not skew the test results.</P> <P>To determine an appropriate warm-up time for your application, use the <B>ASP.NET Applications\Compilations Total</B> counter to measure the effects of JIT compilation. This counter should increase every time a user action triggers the JIT complier.</P> <P>In some cases you may want to know how long it takes to compile and cache. It should be a separate test; it should not be averaged into your steady state measurements.</P></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/D4A49E03-3AA9-463F-9F61-352AA71F8ED2/blog/" title="blog or email this clip"><img src="http://content9.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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