Install Applet Cache Manager

By Mark Russinovich Published: November 1, 2006 (44 KB) Run now from. Introduction CacheSet is an applet that allows you to manipulate the working-set parameters of the system file cache. Unlike CacheMan, CacheSet runs on all versions of NT and will work without modifications on new Service Pack releases. In addition to providing you the ability to control the minimum and maximum working set sizes, it also allows you to reset the Cache's working set, forcing it to grow as necessary from a minimal starting point. Also unlike CacheMan, changes made with CacheSet have an immediate effect on the size of the Cache. Use CacheSet to performance tune the system Cache size in a way not possible without tweaking internal variables the way CacheMan does. Note: To use CacheSet on NT 4.0 Service Pack 4 and later you must have the 'Increase Quota' privilege (administrator accounts have this privilege by default).

CacheSet has been updated to enable this privilege so that it works on SP4. Installation and Use After it starts it presents the system file cache's current size (updated twice a second), it's peak size (the largest it's been since the last reboot), and lets you set new minimum and maximum working set sizes. Setting New Sizes Simply enter the new minimum and maximum sizes and hit the Apply button. E Voter Id Card Download Telangana more.

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If you get an error, then one of the following conditions holds: you've entered a maximum that is smaller than the minimum, the minimum you've entered is smaller than the minimum system working-set size, or the maximum you've entered is larger than the maximum system working-set sizes. Adjust the values you've entered and try again. You may notice that the Cache's size changes immediately and then proceeds to shrink or grow quickly.

This is because the system automatically trims working sets once a second. The Cache pages that are released are still in memory, but can be relinquished quickly for use by other programs that need more memory. Similarly, the Cache can eaily regain pages as applications access file system data.

Resetting Previous Values At any time you can restore the Cache's working set values that were active when you last started CacheSet by hitting the Reset button. Clearing the Cache's Working Set You can force the Cache to release all of it's pages by pressing the Clear button.

Note that the Cache can grow again as necessary, and that this is not the same as flushing the Cache - pages that were assigned to it are simply made available to other programs and can be reclaimed by the Cache. Using the Command-Line Interface You can enter the minimum and maximum working set sizes on CacheSet's command line. CacheSet will apply these new values silently. Thus, you can add CacheSet to your Start program group to automatically set the Cache's sizes every time you boot.

Usage: CacheSet [minimum working set] [maximum working set] How It Works CacheSet uses a NtQuerySystemInformation call to obtain information about the Cache's settings and NtSetSystemInformation to set new sizing information. The working-set information for a process serves as guidelines for NT's Memory Manager regarding how many pages of physical memory should be assigned to the application. Because they are guidelines, conditions can result such that the Memory Manager grows a working-set to a size greater than the maximum, or shrinks it to less than the minimum.

Pm Fastrak V7 License Serial Number Downloads. However, the settings are factors that will affect the overall allocation, and hence responsiveness, of an application. In the case of CacheSet the application is the file system Cache. Internally NtSetSystemInformation calls MmAdjustWorkingSetSize, which either grows an application's working set or trims it. If the third parameter passed to MmAdjustWorkingSetSize is 1, the system Cache's working set is adjusted, otherwise the adjustment occurs on the current process (the system information calls affect only the system cache). Passing in a minimum and maximum of -1 causes MmAjustWorkingSetSize to perform a working-set clear operation, releasing all pages from the application's working set.

(44 KB) Run now from. Runs on: • Client: Windows Vista and higher. • Server: Windows Server 2008 and higher.