Very Computer

by **Bill Deriscavag** » Sat, 21 Jun 1997 04:00:00

HI folks:

I have an application that passes information via files. I need to speed
up this communication mechanism and still retain a file transfer
interface. One way to do this is via a ramdisk but I don't have the
foggiest idea of how to create one, assign a file name, format,erase,etc.
In other words i need do all the things you do to disks.

1) does anyone know how to make a ramdisk and assign files to it?
2) does anyone have c code to make a ramdisk?

Can someone point me in the "write" direction?

Bill D.

by **Brian McCaule** » Tue, 24 Jun 1997 04:00:00

> I have an application that passes information via files. I need to speed
> up this communication mechanism and still retain a file transfer
> interface. One way to do this is via a ramdisk

Ramdisks don't generally speed things up. Ramdisks reduce the ammount
of memory available so slow your system down. Real disks are cached
so just about are as fast as ramdisks for temporary files.

Quote:> 1) does anyone know how to make a ramdisk and assign files to it?

Yes, but I don't think you want to.

Quote:> 2) does anyone have c code to make a ramdisk?

As I recall on Linux you just write zeros to it.

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by **James Youngma** » Tue, 24 Jun 1997 04:00:00

> 1) does anyone know how to make a ramdisk and assign files to it?

# Make ramdisk
mke2fs /dev/ram1
mkdir /mnt/ramdisk
mount /dev/ram1 -t ext2 /mnt/ramdisk

# Use ramdisk.
cp foo /mnt/ramdisk

Quote:> 2) does anyone have c code to make a ramdisk?

Not I.

Very Computer

does anyone have c code for making a ramdisk?

does anyone have c code for making a ramdisk?

does anyone have c code for making a ramdisk?

does anyone have c code for making a ramdisk?