Memory Performance Tweak

August 1st, 2004 Leave a comment Visited 2303 times, 6 so far today















These Settings will fine tune your systems memory

management -atleast 256MB of ram recccomended

go to start runregedit -and then to the following key

HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSession ManagerMemory Management

1.DisablePagingExecutive -double click it and in the decimal put a 1 – this allows XP to keep data in memory now instead of paging sections of ram to harddrive yeilds faster performance.

2.LargeSystemCache- double click it and change the decimal to 1 -this allows XP Kernal to Run in memory improves system performance alot

3.create a new dword and name it IOPageLockLimit – double click it and set the value in hex – 4000 if you have 128MB of ram or set it to 10000 if you have 256MB set it to 40000 if you have more than 512MB of ram -this tweak will speed up your disckcache

Reboot and watch your system fly.

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DON'T BOTHER
The descriptions of these settings contain gross errors. They are best ignored.
DisablePagingExecutive:
This effects only a small portion of the Kernek. If you have. With a reasonable amount of RAM the kernel will hardley ever be paged out anyway.
LargeSystemCache:
As Microsoft clearly states, this is for servers only. For general use it will almost always be a bad thing. It can also cause severe problems with some common hardware configurations.
IOPageLockLimit:
This does absolutely dothing in XP. Support for this setting was removed as of Windows 2000 SP1. It has never been supported on any version of XP or Vista.

Be carefull with the LargeSystemCache switch. If you run a server it is very usefull however if, like myself, you have a gaming machine with lots of memory and use AGP Apature cache this can decrease performance greatly, as Microsoft mentions here:
"When you enable System cache mode on a computer that uses Unified Memory Architecture-based video hardware or AGP, you may experience a severe and random decrease in performance. The Drivers for these components consume a large part of the remaining application memory when they are initialized during startup."
Otherwise the rest of the suggestions here are great!
~j

Wow very nice my system is flying...literally.

Thanks this part was VERY HELPFUL.
3.create a new dword and name it IOPageLockLimit - double click it and set the value in hex - 4000 if you have 128MB of ram or set it to 10000 if you have 256MB set it to 40000 if you have more than 512MB of ram -this tweak will speed up your disckcache

how do you create a new dword

You have givin an incomplete registry key.
HKeyLocalMachine => System => CurrentControlSet001 =>Control=>
Memory Management

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