Re: Double buffered cp(1)

[Narvi]

On Sat, 22 Apr 2000, Matthew Dillon wrote:

[snip]

>     disk itself is probably the bottleneck.  Disk writes tend to be
>     somewhat slower then disk reads and the seeking alone (between source
>     file and destination file), even when using a large block size, 
>     will reduce performance drastically verses simply reading or writing
>     a single file linearly.  Double buffering may help a disk-to-disk
>     file copy, but I doubt it will help a disk-to-same-disk file copy.
> 

Wouldn't coping the file to another disk and then back to the original one
than just a simple copy in some cases be faster then?

After all, you are saving a lot of head seeks.

>                                       -Matt
>                                       Matthew Dillon 
>                                       <[EMAIL PROTECTED]>
> 



To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-hackers" in the body of the message