RE: compressed JFS on AIX for datafiles

From: jared still <jkstill_at_teleport.com>
Date: Fri, 8 Dec 2000 09:01:20 -0800 (PST)
Message-Id: <10704.124069@fatcity.com>

On Fri, 8 Dec 2000, JAGAN RAO wrote:

> Cold back up files it is ok. Not very much recommended for active datafiles.
> The overhead is quite a bit. According to my aix system admin training
> notes:
>
> "In order to perform data compression, approximately 50 CPU cycles per byte
> are required and about 10 cpu cycles per byte for decompression. Data
> compression, therefore, places a load on the processor by increasing the
> number of processor cycles".
>

How many CPU cycles does it take without compression?

Jared Still
Certified Oracle DBA and Part Time Perl Evangelist ;) jkstill_at_teleport.com
jared_still_at_enron.net Received on Fri Dec 08 2000 - 11:01:20 CST