Linux File copy slowness ??

Hi,

We are trying to copy a 15Gig file from one directory to another
(inside same partition) for example:

cp /data/BigFile /data/data/ (Bigfile - being file that is greater
than 15 gig).

It takes about 32 minutes to finish copying. When we do the same
operation on a windows 2003 server it takes almost HALF the time.

I am wondering if this behaviour is normal or something wrong with
system?kernel? etc.

The system is a hefty: Dell 1850 server with Dual Xeons 3.2 ghz (hyper
threaded) with 2 Gig ram, SCSI hard drives 10k rpm.

Also, while the system is copying the file, I don't see any kernel
errors or IO errros and all the time while the sytem is copying this
drive the cpu usage is at 50 Any help is highly appreciated.

-Parvinder Bhasin

On Fri, 06 Jan 2006 11:26:28 -0800, parvinderb wrote:

> cp /data/BigFile /data/data/ (Bigfile - being file that is greater than
> 15 gig).

Try this instead:

$ time dd if=/data/BigFile of=/data/data bs=512k

and see if that helps.

Cheers