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<SPAN
class=320214912-11052001>Group:
This article
came from a German magazine which I got translated to English. I was interested
as well as other group members thus am sharing it with anyone so include to read
it.If you wish to read it in German go to <A
href="http://www.virtusoft.com";>www.virtusoft.com and you may find
it.
<SPAN
class=320214912-11052001>
By
Matthias Carstens
bypass VRAMDIR: (K)eine RAM disk for Windows 95
VRAMDIR unites the advantages of a RAM disk in itself, done thereby however
without the typical disadvantages. By an ingenious trick it generally
accelerates fixed disk accesses and thus Windows. Since there is Windows 95,
many users look a genuine 32-Bit-RAM-Disk up, because the provided operates only
in the 16-Bit-Kompatibilitaetsmodus. But it does not give until today.
Instead the Virtual software corporation offers now
however a beginning the unusual at first sight more ingenious on the second view
for the use of the fallow-being situated RAMs. By Setup the user defines
directories on his fixed disks, into whom from now on physically nothing more is
written - all files land in the RAM. This principle eliminates at one blow all
with usual RAM disks accompanying restrictions, like additional drive letters,
specific cluster sizes and partition information. They prevent a dynamic
groessenaenderung with DOS-BASED RAM disks. Too German: The RAM disk had to be
produced with a fixed size. If it were not too small, it was excessive and
occupied unnecessarily much RAM.
The 32-Bit-Treiber VRAMDIR produces a
virtual file system in the RAM. The small vxd file operates by the
renouncement of fixed disk-similar characteristics completely dynamically. Only
so much memory is thus occupied, how also actually are at data in the VRAMDIR
directories. To the easier understanding and a fast check the program is after
the installation also than data source in the system monitor. At present used
storage space, number of file operations and quantity of read and written bytes
are representable and help during the optimization of the system. By default are
all the operating system admitted temporary directories (C:\Temp,
D:\Windows\Temp etc..) to the virtual bypass announced. Further, like Netscapes
Internet Cache, special directories or own set in certain applications, which
are to be used in typical RAM disk manners (to unpack, tests etc. installs), to
add are manually over a dialog box accessible in the system control.
Modifications require in each case a restart of Windows.
That performance gain actually which can be obtained
depends strongly on the used applications and the rate of the computer and the
fixed disk. Typical candidates for noticeable improvements are Mailpacker or
compilers, which do not use 32-bittig the disk free space, but solid temporary
files create. But even if owing to fastest computer and newest
Windows-95-Software in practice no difference becomes noticeable, VRAMDIR
reduces a fragmenting of the fixed disk by the decrease of the fixed disk
activity. In the test the software operated perfectly. The more data in the
virtual directories, the fewer memory are available Windows land. The transition
for storing externally and the return of free memory occur smoothly. When
copying within of/after VRAMDIR about 10 MByte/s are realistic, some
non-practical of bench mark 35 MByte/s measured. In the unregistrierten tri
aluminum version VRAMDIR functions only 30 minutes long, afterwards operate like
had the fixed disks in place of the RAMs. VRAMDIR is the drop oil, which lets
the Windows-95-Rechner so correctly approximately run only. For 10 $ Shareware
fee one receives one which can be easily applied, problem-free utility, which
can surely use everyone. (se)
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