LargeSystemCache
Values: 0 = standard (default), 1 = large.
By default, Windows uses only 8 MB of memory for the filesystem
cache. Enabling this option will allow Windows to use all but 4 MB of
your computer??™s memory for the filesystem cache. This will improve
Windows??™ performance, but potentially at the expense of the performance
of some of your more memory-intensive applications.
This option can also be changed by opening the System page in Control
Panel: click the Advanced system settings link, click Settings in the Performance
section, and then choose the Advanced tab. The Memory
usage section has two settings: Programs and System cache, which correspond
to the 0 and 1 values here.
Other values in this key include PagingFiles, which is more easily set in the
Virtual Memory window described in ???Part 1: Virtual memory settings??? and
ClearPageFileAtShutdown, more easily set in the Local Security Settings console,
as described in ???Part 3: Clear the paging file on shutdown.???
254 | Chapter 5: Performance
Choose the Right Filesystem
The filesystem is the invisible mechanism on your hard disk that is responsible
for keeping track of all the data stored on the drive. Think of it as a massive
table of contents, matching up each filename with its corresponding
data stored somewhere on the disk surface. Vista supports three filesystem
types:*
FAT (File Allocation Table, 16-bit)
FAT is used for all drives under 512 MB, such as flash memory cards and
floppy disks.
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