current cpu load

[Del4ev]

Hi,

Is there any cross-platform way to get current CPU load in percentage?
if no, how to get this load in linux and win separately {$ifdef linux}...{$endif} {ifdef win32}...{$endif}

for example, my program should work only if current cpu less than 10%

[Ocye]

You could evaluate output of "top" for Linux.
But I don't think your approach is well elaborated. If CPU usage falls below 10% and your program runs some calculation usage would raise to 100%, unless you implement sleep() cycles. It's a to do or not to do situation. Maybe you should think about threading with priority tpIdle.

[kees]

Have a look at sysstat for Linux:
http://pagesperso-orange.fr/sebastien.godard/

[marcov]

Various OSes use different ways to calculate such load numbers. Some factor in kernel time, some not.

(e.g. a BSD system's load number is  typically higher than an equivalent linux system. And that is not technical, just a result of how "load" is calculated).

I wouldn't try to take decisions on such value at all, but if I had to, I wouldn't hardcode the values if I were you, for the above reasons.

Also the meaning varies. Windows puts all CPU power (all cpus and cores combined) at 100%, while *nix loads take 100% as the CPU processing of one core.