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comparessing hard drive?

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Name: mirna
Date: December 6, 2005 at 10:37:09 Pacific
OS: xp
CPU/Ram: 3.1/512
Comment:

what do you guys think comparessing hard drive? is it good to comparess or not? whats the advantages and disadvantages?

thanks alot

leave it, or u gonna f--- it



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Response Number 1
Name: foo
Date: December 6, 2005 at 10:48:58 Pacific
Reply:

If you compress your local disk, it will allow you to gain more space, but when you want to open your programs it will run a bit slow, because it needs to decompress the files 1st.


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Response Number 2
Name: ham30
Date: December 6, 2005 at 11:17:46 Pacific
Reply:

Compressing is not a good idea. If you need more space, add a second hard drive.

Actually, I think everyone should have a second hard drive for backups.


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Response Number 3
Name: XpUser
Date: December 6, 2005 at 12:00:31 Pacific
Reply:

In addition, if your file system is FAT32, compression is not an option. Compression used to be an important criteria in the early days of the PC. Nowaday why bother with it when the HD prices today are so cheap ($125USD for a 300GB HD)?

i_XpUser


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Response Number 4
Name: jefro
Date: December 6, 2005 at 13:02:49 Pacific
Reply:

I disagree that a compressed drive will act slow. The average drive is VERY slow access compaired to internal system speeds. Ms's versus Us's access to the order of 1000 to 1 speed difference. In most computers you have excess cpu time. The disk that is compressed has it's data compressed on the disk and up the ide or scsi chain up to the processor, which decompresses it. Becase you transfer less data on the slowest of the devices the computer will normally act faster. This is the same sales pitch that is true for dial up companies that offer speed improvements. they transfer less actual data in a compressed form. Your computer decompresses it. Unless you transfering a iso or zipped or other compressed file that is.

I can see no disadvantage unless you deal with very large files that are non-compressable.


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Response Number 5
Name: ham30
Date: December 6, 2005 at 17:00:38 Pacific
Reply:

Jefro, I'm afraid that you have been musinformed. The decompression time is much more than the time saved by transferring less data. The data is transferred using DMA which does not use CPU cycles, whereas decompression uses the CPU intensely.


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Response Number 6
Name: ham30
Date: December 6, 2005 at 18:03:15 Pacific
Reply:

Addendum to the above. Even if DMA wasn't used,decompression would still take more time than the data transfer would.


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