Wesley Vogel said:amanda;
I think you want to keep it.
[[Improved Boot and Logon Performance When a Windows XP-based system is
first booted; data is saved about all logical disk read operations. On
later boots, this information is used to pre-fetch these files in parallel
with other boot operations.]]
[[Boot Prefetching
Windows XP speeds up system boot by observing the code and data needed each
time the system is booted and prefetching the necessary file contents early
in the boot process. This prefetching is not done until the third boot of
the system, when sufficient information is available to make the prefetching
most effective. The files observed during system boot will be used in the
disk layout process mentioned above. Additional information on the
prefetcher and the Windows XP boot process can be found at Fast Boot/Fast
Resume for the Windows Platform.
Application-Launch Prefetching
Windows XP also uses prefetching when launching applications. The files and
the contents of the files accessed by each new process are observed and
recorded. No prefetching can be done for the first launch of an
application, so first launches are often considerably slower than subsequent
launches. About 85% to 90% of the improvement is realized after just one
launch of an application, with the remaining speed improvement coming after
the system has had an opportunity to adjust the disk layout with information
specific to this application.]]
[[Windows XP monitors the files that are used when the computer starts and
when you start applications. By monitoring these files, Windows XP can
prefetch them. Prefetching data is the process whereby data that is
expected to be requested is read ahead into the cache. Prefetching boot
files and applications decreases the time needed to start Windows XP
Professional and start applications.
Prefetching is further improved if the files are located next to each other
on the outer edge of the disk. Windows XP optimizes the location of boot
files and applications when the computer is idle. The optimization occurs
in the background and lasts only a minute or two; you might hear the hard
disk being accessed when optimization occurs. After the initial
optimization takes place, subsequent optimization occurs, at most, every
three days. {Three Boots}
When you run the Disk Defragmenter tools that are included with Windows XP,
they can perform any optimization updates that are scheduled to take place
during the next idle period. The Disk Defragmenter tools do not disturb the
existing layout of optimized boot files and applications.]]
--
Hope this helps. Let us know.
Wes
Inamanda said:is was wondering if anyone knows of a way to delete
Prefetchs or if it's impossible.and if it is can someone
give me more information on what their purpose is
FrankV said:I've deleted them a few times. They are recreated as needed.
Frank
Wesley Vogel said:amanda;
I think you want to keep it.
[[Improved Boot and Logon Performance When a Windows XP-based system is
first booted; data is saved about all logical disk read operations. On
later boots, this information is used to pre-fetch these files in
parallel with other boot operations.]]
[[Boot Prefetching
Windows XP speeds up system boot by observing the code and data needed
each time the system is booted and prefetching the necessary file
contents early in the boot process. This prefetching is not done until
the third boot of the system, when sufficient information is available
to make the prefetching most effective. The files observed during
system boot will be used in the disk layout process mentioned above.
Additional information on the prefetcher and the Windows XP boot
process can be found at Fast Boot/Fast Resume for the Windows Platform.
Application-Launch Prefetching
Windows XP also uses prefetching when launching applications. The
files and the contents of the files accessed by each new process are
observed and recorded. No prefetching can be done for the first launch
of an application, so first launches are often considerably slower than
subsequent launches. About 85% to 90% of the improvement is realized
after just one launch of an application, with the remaining speed
improvement coming after the system has had an opportunity to adjust
the disk layout with information specific to this application.]]
[[Windows XP monitors the files that are used when the computer starts
and when you start applications. By monitoring these files, Windows XP
can prefetch them. Prefetching data is the process whereby data that is
expected to be requested is read ahead into the cache. Prefetching boot
files and applications decreases the time needed to start Windows XP
Professional and start applications.
Prefetching is further improved if the files are located next to each
other on the outer edge of the disk. Windows XP optimizes the location
of boot files and applications when the computer is idle. The
optimization occurs in the background and lasts only a minute or two;
you might hear the hard disk being accessed when optimization occurs.
After the initial optimization takes place, subsequent optimization
occurs, at most, every three days. {Three Boots}
When you run the Disk Defragmenter tools that are included with Windows
XP, they can perform any optimization updates that are scheduled to
take place during the next idle period. The Disk Defragmenter tools do
not disturb the existing layout of optimized boot files and
applications.]]
--
Hope this helps. Let us know.
Wes
Inamanda said:is was wondering if anyone knows of a way to delete
Prefetchs or if it's impossible.and if it is can someone
give me more information on what their purpose is