CPU Utilization (via WinAPI?)

[f0tz!baerchen]

yeah.. Im looking for a way to get the "CPU utilization" for a single process (Game.exe I think )

I thought this would be possible with a WinAPI command..

Does anybody know how to do that?

Edit: I mean this value you find in the Task Manager, too (for every process there is the name, the user, cpu utilization and memory useage..)

 

[Saucetenuto]

I don't see any way offhand to get that out of the C API (there are a couple of C# things that look relevant, search MSDN). However, why do you want this? There may be an easier way.

 

[f0tz!baerchen]

I already checked MDSN.. there are some things which may help.. but because I dont know much about API at all, I dont know how to make these things useful.. I found no direct function to get the cpu utilization like there is one for the priority.. (which I dont need anymore Myonosken )

and.. yeah.. you're right it is for the antilag script.. ^^

 

[f0tz!baerchen]

ok.. I think I found something which could be useful.. but.. I dont know how to use it ^^

GetProcessTimes

does somebody know how to impletement this in rgss? I dont get it.. the game always crashes..

edit: sry for double posting

edit2: another maybe useful thing: 'klick'
but I dont know how this could be useful in ruby.. -.-

 

[Yeyinde]

Ruby has a built in module called Process, which may be of some aid.
Click here
Some bits may not be available in RMXP, so try it out.

 

[f0tz!baerchen]

mh.. this also didnt help me.. but I managed it myself..

def get_cpu_utilization
    
    @GetProcessTimes = Win32API.new('kernel32', 'GetProcessTimes', ['i','p','p','p','p'], 'i')

    # uses API Call to get the Kernel and User Time
    creation_time = '0' * 10
    exit_time = '0' * 10
    kernel_time = '0' * 10
    user_time = '0' * 10
    @GetProcessTimes.call(-1,creation_time, exit_time, kernel_time, user_time)
        
    # converts times into integer (in 100ns)
    kernel_time = kernel_time.unpack('l2')
    user_time = user_time.unpack('l2')
    kernel_time = kernel_time[0] + kernel_time[1]
    user_time = user_time[0] + user_time[1]
    
    # takes differences to calculate cpu utilization
    if @old_time != nil
      timer_difference = Time.new - @old_timer
      time_difference = kernel_time + user_time - @old_time
      result = time_difference / timer_difference / 100000
    else
      result = 0
    end
    
    # saves values (to calculate the differences, s.a.)
    @old_timer = Time.new
    @old_time = kernel_time + user_time
    
    return result
    
  end

(has to be called at least twice.. )

works fine