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SuperFetch
Windows SuperFetch enables programs and files to load much faster than they would on Windows XP–based PCs.

When you're not actively using your computer, background tasks—including automatic backup programs and antivirus scans—run when they will least disturb you. These background tasks can take up system memory space that your programs had been using. On Windows XP–based PCs, this can slow progress to a crawl when you attempt to resume work.

SuperFetch monitors which applications you use the most and preloads these into your system memory so they'll be ready when you need them. Windows Vista also runs background programs, like disk defragmenting and Windows Defender, at low priority so that they can do their job but your work always comes first.

Catch 22:
Stvarno bi deal (!!???)

Catch 22:
Ni na XP-u nisam koristio prefetch

BrokeBody: Ne postoji prefetch za XP. ;-)

Microsoft Technet: Windows XP Performance
Dynamic Determination of Code and Data Needed During Boot

By observing successive boots of the system, Windows XP can dynamically determine the code and data needed for the boot and can optimize the placement of these files on the disk. When the computer boots, Windows XP can issue large I/O requests that can be handled efficiently with high throughput. Moreover, the operating system can find opportunities to issue these requests so that they will overlap in time with device detection and initialization. This is done in a way that will not add to the overall boot time. This allows for subsequent processing to occur with the operating system substantially resident in memory, and dramatically decreases the time needed for the system to boot.

See Figure 1 for an illustration of disk I/O for booting without prefetching, and Figure 2 for an illustration of booting with prefetching.


Figure 1: Disk I/O for booting without prefetch; the bottom graph shows the I/Os per second, while the top graph shows the pattern on the disk
(Refer to legend in Figure 2)




Figure 2: Booting with prefetching: Everything gets done much more quickly, because seek costs have been significantly reduced; high I/O efficiency comes from improvements in layout and from issuing the I/O as a single large "shopping list"
Note: A fresh installation will require three boots before the observation and optimization for fast boot is complete

Ivan Dimkovic: Superfetch je "godsend" za poslovne laptopove gde se svaki dan koriste iste aplikacije. Meni se zahvaljujuci superfetchu Office 2007 aplikacije dizu za manje od 0.5 sec na procesoru od 1.2 GHz (na baterijama 700 MHz!)

Instalirao sam Vistu Ultimate SP1 64bit. Ne može da se poredi sa 32bitnom verzijom

Supefetch service mi je na "manual", kada pokrenem Word treba mu 2-2,5 sec, ali sledeće pokretanje Worda je skoro trenutno 0,5 sec...