個人積分：41分
文章編號：33665649
Under Windows XP writing of lots of small files to a 'Removable' pen drive is extremely slow, while it's fast under Windows 2000. Writing large files there is no appreciable difference.
Obviously Windows XP doesn't enable a write cache for USB drives that appear as 'Removable'. The option "Enable write caching on the disk" is grayed out for USB drive (this mean the hardware cache of the drive) and the removal policy setting ('Optimize for quick removal' or 'Optimize for performance') doesn't seem to make any difference, except that the latter enables the user to format 'Removable' USB drives with NTFS. But with NTFS Windows XP enables a write cache, writing small files becomes lightning fast.
Update Feb 2011
I was pointed to the fact that by means of the registry value WriteCacheEnableOverride a write cache can be forced for any USB drive, even FAT formatted removeable drives. And it indeed works!
I have made a litte tool: USB-WriteCache
