LinuxQuestions.org - hdparm enabled but still slow copy

- Slackware (https://www.linuxquestions.org/questions/slackware-14/)

- - hdparm enabled but still slow copy (https://www.linuxquestions.org/questions/slackware-14/hdparm-enabled-but-still-slow-copy-351294/)

hdparm enabled but still slow copy

Hello

I have either dma enabled for my dvd and hard disk. My hard disk is divided into
2 partitions hda1 hda2

the settings are saved into rc.local
like as follows:

hdparm -d1 /dev/cdrom[/CODE]

Code:

hdparm -d1 /dev/hda



hdparm -d1 /dev/cdrom

[CODE]dev/hda:
multcount = 16 (on)
IO_support = 0 (default 16-bit)
unmaskirq = 0 (off)
using_dma = 1 (on)
keepsettings = 0 (off)
readonly = 0 (off)
readahead = 256 (on)
geometry = 65535/16/63, sectors = 80026361856, start = 0

The problem is that whenever i copy avi files which are huge files
my copy speed is 9mb /sec

can i fix this somehow .

do i have to enable dma for each partition for example ??
ps dma works fine with my dvd and with the hda1 which is the slackware partition

the hda2 is a storage space

Thanks in advance

Are you slaving your dvd off of your hard drive, or is it on a separate ide channel?

Samac

one ide cable from mobo is connected hd

one ide cable from mobo to dvd

if this is your question

what's the result of " hdparm -tT /dev/hda ?

egag

here it is egag

Code:

hdparm -tT /dev/hda



/dev/hda:

 Timing cached reads:  1176 MB in  2.00 seconds = 587.50 MB/sec

 Timing buffered disk reads:  148 MB in  3.01 seconds =  49.21 MB/sec

i cannot understand when i copy something from /dev/hda2 to /dev/hda1

i reach up to 7mb /sec

that is because it all goes through the same cable.
those readings look ok to me.

egag