I would agree that the DB is probably the biggest bottleneck...
Are you connecting to the DB via ODBC? I'm not an expert at DB stuff
outside of the MySQL realm, but I've heard many say ODBC is horribly
slow. I don't know ASP that well, but could someone comment on ADODB?
It uses OLEDB, not ODBC, correct? I've read that OLEDB is much faster.
First and foremost, as Michael said, optimize your SQL... That's the
first thing I'd do... Then, check and see how you are connecting to the
DB...
I think I can safely say, that if you switch to PHP/MySQL, that using
MySQL native libs to connect to the database are fastest... But I have
been wrong in the past...
-----Original Message-----
From: Michael Kimsal [mailto:[EMAIL PROTECTED]]
Sent: Sunday, September 16, 2001 11:54 PM
To: Masami Kawakami
Cc: php forum
Subject: Re: [PHP] Performance: PHP vs. Visual Basic
Much as I don't like to defend MS, I'll take a stab here.
By 40-50 people in an office, I presume you're talking about an intranet
of some type - 40-50 aren't constantly hitting it (meaning 40-50
requests per second all the time), but 40-50 are using it throughout the
day for various tasks.
You don't give the machine specs, but I'd hazard to say, if it's
moderate equipment, that there's some DB optimization (or VB
optimization) that could be done. 40 people lightly hitting a machine
shouldn't cause much of a problem regardless of language used, unless
there's some extremely bad coding going on.
Are you closing DB connections?
Are you avoiding putting objects in session and/or application scope?
Are the DB queries optimized properly (proper indices on tables, etc)?
Those are just a few things I'd look for. Yeah it'd be great to have
you switch to PHP, but some optimization issues are universal, and if
it's written poorly in one language, chances are it'll be written poorly
in another.
Regardless of this, we still recommened PHP to most clients because of
the cost issue as well. However, since you've already paid for this
software you're running (right?) it's probably worth it to take a while
to optimize what you've got first.
--------------------
Michael Kimsal
http://www.tapinternet.com
734-480-9961
On Sun, 16 Sep 2001, Masami Kawakami wrote:
> Maybe this is one of FAQ, Please give me a URL of this kind of
> comparison page, or your experience.
>
> A web server program is running in my office. It consists of Visual
> Basic, IIS, and MS SQL Server on Windows 2000. although the
> performance is confortable for few users, it is terribly slow for
> 40-50 users. Once all of them start to use, it takes more than 20
> seconds to open a page in client browser.
>
> To improve the performance, we have an idea to use, instead of
> Microsoft, PHP, Apache, and mySQL/ProgreSQL on Linux. How much will be
> the improvement?
>
> We also have plan to enhance the hardware, 1PC for DataBase, 2nd and
> 3rd for IIS or Apaches. Which has better scalability, VB or PHP?
>
>
>
> --
> Masami Kawakami <[EMAIL PROTECTED]>
>
>
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