Hi,
I'm trying to fetch the amount of free cache in a system. I'm not able to 
find the correct parameter for it. I'm using the "sysctl" system call.
	e.g..,
		int mib[]={CTL_VM, <don't know>};
		sysctl( mib, 2, <don't know>,  sizeof(<don't know>), NULL,  0);

Could you please help me in figuring out the don't know part, or suggest me 
other ways to go about. Thankx in advance for the help.

-Mahesh.

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