Re: [RFC] [PATCH procfs] Add process age

[Davidlohr Bueso]

On Mon, 2010-07-26 at 09:47 +0200, Andi Kleen wrote:
> Davidlohr Bueso <dave.bueso@xxxxxxxxx> writes:
> 
> > On Fri, 2010-07-23 at 21:35 +0300, Alexey Dobriyan wrote:
> >> On Fri, Jul 23, 2010 at 01:47:51PM -0400, Davidlohr Bueso wrote:
> >> > This patch exports a process's age, in seconds, adding a /proc/#/age file.
> >> 
> >> What for?
> >
> > I have not found any straight way to get the run time of a processes,
> > without having to interpret the start_time entry in /proc/#/stat and
> > manually subtract the uptime from it.
> 
> That sounds like something an user space program should simply do.
> Perhaps you can add it as a new optional "-o" field in "ps" ?
> 
True, but there are also many other no-so-useful files under /proc that
can also be replaced by userspace apps.

Davidlohr

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