Does disk compression slow down windows XP if I compress c:/ that contains
windows. Thank You, Dave

On Mon, 13 Feb 2006 23:44:19 +0000, Dave wrote:

> Does disk compression slow down windows XP if I compress c:/ that contains
> windows. Thank You, Dave

Yes.

--
Registered Linux User no 240308
Ubuntu 5.10
gordonDOTburgessparkerATgbpcomputingDOTcoDOTuk
to email me replace the obvious!

You may notice a decrease in performance when working with
NTFS compressed files. When you open a compressed file,
Windows automatically decompresses it for you, and when you
close the file, Windows compresses it again. This process may
decrease your computers performance.

File compression overview
http://www.microsoft.com/resources/d..._overview.mspx

--
Carey Frisch
Microsoft MVP
Windows Shell/User

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"Dave" wrote:

| Does disk compression slow down windows XP if I compress c:/ that contains
| windows. Thank You, Dave

On Mon, 13 Feb 2006 17:51:47 -0600, Carey Frisch [MVP] wrote:

> You may notice a decrease in performance when working with
> NTFS compressed files. When you open a compressed file,
> Windows automatically decompresses it for you, and when you
> close the file, Windows compresses it again. This process may
> decrease your computers performance.
>
> File compression overview
> http://www.microsoft.com/resources/d..._overview.mspx

Wouldn't just a straight "yes" have sufficed?

--
Registered Linux User no 240308
Ubuntu 5.10
gordonDOTburgessparkerATgbpcomputingDOTcoDOTuk
to email me replace the obvious!

"Gordon" <(E-Mail Removed)> wrote in message
news(E-Mail Removed)...
> On Mon, 13 Feb 2006 17:51:47 -0600, Carey Frisch [MVP] wrote:
>
>> You may notice a decrease in performance when working with
>> NTFS compressed files. When you open a compressed file,
>> Windows automatically decompresses it for you, and when you
>> close the file, Windows compresses it again. This process may
>> decrease your computers performance.
>>
>> File compression overview
>> http://www.microsoft.com/resources/d..._overview.mspx
>
> Wouldn't just a straight "yes" have sufficed?


Probably not. With such an undetailed question, there is likely a "why"
inferred that the OP never stated, probably because the OP hasn't a clue
what compression really is or how it works.

No.

--
Carey Frisch
Microsoft MVP
Windows XP - Shell/User


"Gordon - Registered Linux User no 240308 " wrote:

> Wouldn't just a straight "yes" have sufficed?

Dave wrote:

> Does disk compression slow down windows XP if I compress c:/ that
> contains windows. Thank You, Dave


Compression slows down the computer because it takes time to compress or
uncompress a file every time it is written or read. On the other hand,
compression speeds up the computer, because every time you read or write a
file, there is less to read or write.

Which of these factors is more significant largely depends on the relative
speeds of the CPU (used for compressing/uncompressing) and the hard drive(
used for reading/writing), but on most modern computers, the result is
probably a near wash either way.

I strongly argue against disk compression, not becauseof its effect on
performance, but because of its effect on the reliability of your data.
Without compression, if you develop a bad spot on the drive, you won't be
able to read one or more files. With compression, all your eggs are in one
basket, and a bad spot makes everything unreadable.

--
Ken Blake - Microsoft MVP Windows: Shell/User
Please reply to the newsgroup

Dave wrote:
>
> Does disk compression slow down windows XP if I compress c:/ that contains
> windows. Thank You, Dave

Do NOT use disk compression for ANY reason.



--
http://www.bootdisk.com/

Ken Blake, MVP wrote:
> Dave wrote:
>
>
>>Does disk compression slow down windows XP if I compress c:/ that
>>contains windows. Thank You, Dave
>
>
>
> Compression slows down the computer because it takes time to compress or
> uncompress a file every time it is written or read. On the other hand,
> compression speeds up the computer, because every time you read or write a
> file, there is less to read or write.
>
> Which of these factors is more significant largely depends on the relative
> speeds of the CPU (used for compressing/uncompressing) and the hard drive(
> used for reading/writing), but on most modern computers, the result is
> probably a near wash either way.
>
> I strongly argue against disk compression, not becauseof its effect on
> performance, but because of its effect on the reliability of your data.
> Without compression, if you develop a bad spot on the drive, you won't be
> able to read one or more files. With compression, all your eggs are in one
> basket, and a bad spot makes everything unreadable.
>

This is not the case with NTFS compression which compresses on a
file-by-file basis, rather than the old "container" approach.

Carl

Plato wrote:
>
> Do NOT use disk compression for ANY reason.
>
>
>

Why?

--
capitan