Extracting speeds

leoncc · 16 May 2009 at 22:53

I have 2 WD740ADFD's in Raid 0 with 16k stripe

Currently use 7zip, I do a lot of extracting and get speeds of 8000 kb/s obviously I would like higher, do these speeds seem about right?

What does everyone else get when extracting large files like MKV's?

-=Vect0r=- · 16 May 2009 at 23:54

I extract 2GB .rar files at a max of 44 MB/s with a single Raptor 150GB. So your 8 Mbps extraction seems low. That said I have no .mkv files to compare it with...

dirtydog · 17 May 2009 at 09:43

leoncc said:
I have 2 WD740ADFD's in Raid 0 with 16k stripe

Currently use 7zip, I do a lot of extracting and get speeds of 8000 kb/s obviously I would like higher, do these speeds seem about right?

What does everyone else get when extracting large files like MKV's?

What are the rest of your system specs as extracting speeds will be dependent on more than just HDD performance.

dirtydog · 17 May 2009 at 09:45

-=Vect0r=- said:
I extract 2GB .rar files at a max of 44 MB/s with a single Raptor 150GB. So your 8 Mbps extraction seems low. That said I have no .mkv files to compare it with...

8000 kilobytes is 8 megabytes, not 8 megabits. I agree it is still too slow though.

Andre · 17 May 2009 at 10:19

My stats:
7zip 4.58 (x64)
CPU (X4 940 @ stock) @6%,
source: Seagate 500GB 7200.9
destination: Seagate 500GB 7200.9, speed 39MB/s (same as source)
destination: Samsung F1 1TB, speed 72MB/s
destination: WD Green 1TB (16MB cache), speed 60MB/s

File compressed as .rar, with WINRAR (3.9b1, x64), best compression. Source
1172833kB, compressed 1145346kB

I think there is something wrong with your setup

[edit]
sorry - just re-read OP...you do not say what format the original files were compressed with/to: .rar, .7z, .zip, .sit?
I just compressed the same file with 7zip, then extracted - speed was down to 9MB/s, so 7zip cannot extract its own archives as fast as it can winrar - but, for most things, the size is a lot smaller
[/edit]

-=Vect0r=- · 18 May 2009 at 00:24

leoncc said:
... I do a lot of extracting and get speeds of 8000 kb/s ....

dirtydog said:
8000 kilobytes is 8 megabytes, not 8 megabits. I agree it is still too slow though.

Yup, which is why I was quoting the OP. He is stating 8000kb/s and I simply referred back to 8 Mbps, not 8 MB/s as you state

dirtydog · 18 May 2009 at 03:09

-=Vect0r=- said:
Yup, which is why I was quoting the OP. He is stating 8000kb/s and I simply referred back to 8 Mbps, not 8 MB/s as you state

He obviously meant kilobytes though.

leoncc · 18 May 2009 at 17:05

dirtydog said:
What are the rest of your system specs as extracting speeds will be dependent on more than just HDD performance.

q6600
abit ip35-pro
8gig mem
xp x64

i'm not sure if my old storage drive is causing my system to slow down, its about dead, can't copy large files to it or do anything intense from it otherwise my system just locks up and i have to do a hard reset

bledd · 18 May 2009 at 17:15

depends how much compression is used on them..

disable antivirus
use 7zip 4.65 too