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<?xml-stylesheet type="text/xsl" href="https://community.arm.com/utility/feedstylesheets/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/"><channel><title>Compiling twice as fast in VM...</title><link>https://community.arm.com/developer/tools-software/tools/f/keil-forum/25289/compiling-twice-as-fast-in-vm</link><description> 
I have a new Core2 WinXP SP3 machine (Dell E7400, 3GB RAM) with
uVision2 installed on it. My new work has an application that needs
to be built using a few batch scripts to compile the whole project.
Using my new pc it takes about 19 minutes to perform</description><dc:language>en-US</dc:language><generator>Telligent Community 10</generator><item><title>RE: Compiling twice as fast in VM...</title><link>https://community.arm.com/thread/125583?ContentTypeID=1</link><pubDate>Fri, 17 Jul 2009 07:56:17 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:2de9fdb5-2806-4bec-978f-a30df2f009ab</guid><dc:creator>&amp;#178;erik malund</dc:creator><description>&lt;p&gt;&lt;p&gt;
I do not do windows.&lt;/p&gt;

&lt;p&gt;
I do not know how it was done.&lt;/p&gt;

&lt;p&gt;
However an IP guy did, when I complained, exclude some files (and
subdirectories) from the eternal scan and installed a midnight scan
of those instead.&lt;/p&gt;

&lt;p&gt;
Erik&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Compiling twice as fast in VM...</title><link>https://community.arm.com/thread/118968?ContentTypeID=1</link><pubDate>Fri, 17 Jul 2009 05:27:55 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:9b0897ce-2c3f-42c7-9638-23228744e934</guid><dc:creator>Robet McNamara</dc:creator><description>&lt;p&gt;&lt;p&gt;
&amp;quot;We&amp;quot; use McAfee and it does EXACTLY what you describe. I can build
in less the half the time in a VM session. If I turn off McAfee, the
Real session builds slightly faster then the VM session.&lt;/p&gt;

&lt;p&gt;
I would bring up the Task Manager (as Per says) and look for the
highest CPU time items while you are running in the &amp;quot;Real World&amp;quot;.
This should tell you what is taking your time. (My guess is still
Anti-Virus, but that is only because I can fully duplicate the issue
you are describing that way)&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Compiling twice as fast in VM...</title><link>https://community.arm.com/thread/103271?ContentTypeID=1</link><pubDate>Thu, 16 Jul 2009 23:19:12 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:3281c186-97b9-4fdd-be58-2ba264184fb5</guid><dc:creator>ImPer Westermark</dc:creator><description>&lt;p&gt;&lt;p&gt;
The traditional way to improve build times on a multi-core or
multi-processor machine is to replace the scripts with a Makefile and
then use a version of Make that supports parallel compilations.&lt;/p&gt;

&lt;p&gt;
On the other hand, you have to figure out exactly what is slowing
down your builds. Write cache on/off can affect write speeds
significantly for a disk. And if the disk is run without DMA, the
system load will be very high. But also check in the task manager if
you can see if any program is taking much CPU capacity. Any busy
antivirus program should show up.&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Compiling twice as fast in VM...</title><link>https://community.arm.com/thread/77592?ContentTypeID=1</link><pubDate>Thu, 16 Jul 2009 23:12:33 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:9a44d808-94d9-43b9-9214-06c666b1c2ee</guid><dc:creator>Barak Cherek</dc:creator><description>&lt;p&gt;&lt;p&gt;
We&amp;#39;re using NOD32 as our av and when I disable or exclude keil/my
project from the live scanning it doesn&amp;#39;t seem to make any difference
to the build time.&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Compiling twice as fast in VM...</title><link>https://community.arm.com/thread/56450?ContentTypeID=1</link><pubDate>Thu, 16 Jul 2009 19:15:43 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:43ff733a-5a7d-43c9-a028-a1c1e98abb79</guid><dc:creator>Robet McNamara</dc:creator><description>&lt;p&gt;&lt;p&gt;
Aggressive anti-virus software WILL cause this. Software
anti-virus software will check EVERY exe that gets called for a
virus. The compiler executable is called for every filed that is
compiled so it is checked often. Disable the anti-virus software.&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>