gHacks Technology News | Latest Tech News, Software And Tutorials » prefetcher http://www.ghacks.net A technology news blog covering software, mobile phones, gadgets, security, the Internet and other relevant areas. Sat, 11 Feb 2012 09:52:46 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 EnablePrefetcher in PrefetchParametershttp://www.ghacks.net/2008/01/13/enableprefetcher-in-prefetchparameters/ http://www.ghacks.net/2008/01/13/enableprefetcher-in-prefetchparameters/#comments Sun, 13 Jan 2008 20:47:30 +0000 Martin Brinkmann http://www.ghacks.net/2008/01/13/enableprefetcher-in-prefetchparameters/ I remember that several tweaking programs that emerged after the release of Windows XP changed the EnablePrefetcher in the Registry which supposedly should speed up application load time. I also read about that tip in many forums and just recently in a computer magazine that published the tip to change the EnablePrefetcher value to 4-6 to speed up the system.

I was astonished to read this tip in a well respected magazine and would like to use this article to clarify it. You can find the current EnablePrefetcher value in your Registry. Navigate to the key HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ Session Manager \ Memory Management \ PrefetchParameters. The default value for the string should be 3 which means that prefetching is enabled for application launch and boot.

Other values are 0 for disabling prefetching, 1 to enable it for application launch only and 2 to enable it for boot only. The optimal setting is the default one which is 3. Setting EnablePrefetcher to a value above 3 has no effect at all. Even systems with low RAM should keep the default setting of 3 because they actually do benefit from prefetching.

EnablePrefetcher

My suggestion would be to check the Registry key on your system to make sure that the value is set to 3. If it is not change it to 3 and you will probably witness great speed improvements.

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