Number of CPUs using PHP?

[Shekar]

Is there a class/module/function in PHP that will help me identify the
number of CPUs on a system?
php_uname() does not provide that information. Though I can execute a
system command, I do not have a
consistent method that will work across platforms like Linux, SunOS,
AIX, HP-UX and Windows*

Thanks
Shekar

[Andy Hassall]

On Thu, 19 Jul 2007 09:08:55 -0700, Shekar <sh********@gma il.comwrote:

>Is there a class/module/function in PHP that will help me identify the
number of CPUs on a system?
php_uname() does not provide that information. Though I can execute a
system command, I do not have a
consistent method that will work across platforms like Linux, SunOS,
AIX, HP-UX and Windows*

Not that I'm aware of, and I can't spot anything on PEAR - it's not the sort
of information you need very often. So you'll probably have to use php_uname
and then branch out to OS-specific methods (/proc/cpuinfo etc.)

You may also run into the definition of what is one CPU - multi-core and
hyperthreading cloud the issue, resulting in widely varying per-CPU licensing
terms for various commmercial products. Is this what you want the information
for?

--
Andy Hassall :: an**@andyh.co.u k :: http://www.andyh.co.uk
http://www.andyhsoftware.co.uk/space :: disk and FTP usage analysis tool

[Shekar]

I want to find the number of CPUs to guage the capacity of the system
and spawn
parallel executions to maximize CPU usage. Thanks anyway.

[Tim Roberts]

Shekar <sh********@gma il.comwrote:

>I want to find the number of CPUs to guage the capacity of the system
and spawn parallel executions to maximize CPU usage.

Interesting. How would you expect to do that in PHP?
--
Tim Roberts, ti**@probo.com
Providenza & Boekelheide, Inc.