China DOS Union

rt

The advantage of DOS lies in disk management,

but at least the file copying speed I use in DOS is not as fast as Windows

5 times slower than Windows

Copying a file takes 2 minutes in Windows and 10 minutes in DOS

Except for ghost

Are there any tips to speed it up?

Experts, please give some advice

I have already loaded smartdrv

[ Last edited by shella on 2006-4-10 at 21:05 ]

Originally posted by shella at 2006-4-9 05:28 PM:
rt
The advantage of DOS lies in disk management,
but at least the file copying speed I use in DOS is not as fast as Windows
5 times slower than Windows
It takes 2 minutes in Windows to copy a file, and 10 minutes in DOS
...

Previously, it was XDMA, now it's QDMA. Enabling the hard disk's DMA mode, the speed is good
http://johnson.tmfc.net/freedos/qdma.html

Thanks, is there a simple introduction on how to use it and the parameter descriptions? Those are all in English, can't understand. I followed the instructions to set up:
DEVICE=QDBOOT.SYS
DEVICE=UMBPCI.SYS I=CC00-EFFF NOEMS
DEVICEHIGH=/L:1 QDMA.SYS /O /D /F /L
It doesn't work. It shows:
QDBOOT V1.0...
UltraDMA controller...
Primary-master disk is ST380011A.
Then it freezes.

[ Last edited by shella on 2006-4-10 at 01:59 ]

Just add this line:
DEVICEHIGH=QDMA.SYS

Additionally, you can load SMARTDRV to further improve disk speed.

The key is to load SMARTDRV

Originally posted by Wengier at 2006-4-10 03:05 AM:
Try adding this line directly:
DEVICEHIGH=QDMA.SYS

Additionally, you can load SMARTDRV to further improve disk speed.

It works! It can already reach 1/2 the speed of Windows.

I tried again
DEVICEHIGH=LOWDMA.SYS
DEVICEHIGH=UDMA.SYS
It seems a bit faster than QDMA.SYS

[ Last edited by shella on 2006-4-10 at 07:15 ]

Originally posted by dato at 2006-4-10 00:32:

The previous XDMA and now QDMA, one is to enable the hard disk's DMA mode, which has a good speed

Have you compared which is better between QDMA and UDMA? Refer to: XDMA vs. UDMA

Originally posted by DOSforever at 2006-4-10 10:39 AM:

Have you compared which is better between QDMA and UDMA? Refer to: XDMA vs. UDMA

Where can I download NCache2?
How to use it? Is it faster than smartdrv?

NCache2 is in NU, but NCache2 needs to recognize the DOS version number. The NCache2 in NU 8.0 can only be used in MS-DOS 6.22.

It seems that only using UDMA + SMARTDRV. His disk performance is already very high, but there is still a gap with Windows.

The last question:

Without considering other factors of the driver (memory usage, DOS version number, etc.), can the disk performance of DOS reach the level of Windows?

How to set it?

PC-Cache is also better than Smartdrv

The second question I think it can't be achieved

Ask, can this software speed up the speed of ghost?

The speed of copying files? Compared with WINDOWS? When DOS's memory management can be as good as WINDOWS, then we can compare again.

What the person above said is also correct. Well, this matter is like this.

Originally posted by wl00560 at 2006-4-10 17:04:
Ask, can this software speed up the speed of ghost?

Ghost has its own disk reading and writing method, and the disk buffer software we usually use seems to be ineffective for it.

I also want to post a special thread to discuss the disk access method of Ghost.