[Devel] Re: [PATCH v3 3/6] expose fine-grained per-cpu data for cpuacct stats

[Peter Zijlstra]

On Wed, 2012-05-30 at 14:44 +0400, Glauber Costa wrote:
> But I don't really parse what you mean by "make the files go away". We 
> have just one file, with multiple entries. The entries are in key:value 
> form, so I don't see a huge problem in having some entries disappearing.
> 
> As a matter of fact, this is exactly what happens in /proc/stat when you 
> offline a cpu: the correspondent line will stop showing up.

Oh, I thought you had a file per cpu.

If you have content per cpu, this all might become a problem with 4096
cpus, that's bound to overflow the page of output space?