Messagethanks!
"Ray Hunter" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
Here is general information on postgres:
http://www.ca.postgresql.org/docs/aw_pgsql_book/index.html
Here is an optimization file included: This was not written by me!!!
Let me know if you have questions...s
Ray Hunter
Firmware Engineer
ENTERASYS NETWORKS
-----Original Message-----
From: Aron Pilhofer [mailto:[EMAIL PROTECTED]]
Sent: Monday, March 04, 2002 9:10 AM
To: Hunter, Ray
Subject: RE: [PHP-DB] optimization (another tack)
That would be great! Thanks.
[Aron Pilhofer]
-----Original Message-----
From: Hunter, Ray [mailto:[EMAIL PROTECTED]]
Sent: Monday, March 04, 2002 11:04 AM
To: 'Aron Pilhofer'; [EMAIL PROTECTED]
Subject: RE: [PHP-DB] optimization (another tack)
If you are using php and a database you can add more memory to the script and
optimize the database. I only use postgres databases for all my large data so I can
let you know how to optimize postgres...
Ray Hunter
Firmware Engineer
ENTERASYS NETWORKS
-----Original Message-----
From: Aron Pilhofer [mailto:[EMAIL PROTECTED]]
Sent: Monday, March 04, 2002 9:02 AM
To: [EMAIL PROTECTED]
Subject: [PHP-DB] optimization (another tack)
Let me try this again more generally. I am trying to optimize a function in PHP
that handles very large result sets, which are transferred to arrays, and that does
some extremely heavy lifting in terms of calculations on those arrays. By design, it
iterates through each possible combination of two result sets, and does some
calculations on those results. As you can imagine, the numbers get quite large, quite
fast; sets of 500 by 1000 necessitate a half-million calculations.
So, short of rewriting this function in C, which I cannot do, are there any
suggestions for optimizing. For example:
1) is there any advantage to caching an array as a local file?
2) the script pumps the results of the calculations into a new table.. would it
be faster to dump it into a local file instead?
3) is there any advantage to executing the script as a CGI? (does that make
sense? I don't know if I know the correct jargon here...)
Any other tips folks have for scripts that handle a lot of calculations would be
greatly appreciated.
Thanks in advance.
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