Re: [PATCH 1/4] maps: PSS(proportional set size) accounting in smaps

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Thu, Aug 16, 2007 at 09:13:47PM -0500, Matt Mackall wrote:
> On Fri, Aug 17, 2007 at 06:05:17AM +0800, Fengguang Wu wrote:
> > The "proportional set size" (PSS) of a process is the count of pages it has in
> > memory, where each page is divided by the number of processes sharing it. So if
> > a process has 1000 pages all to itself, and 1000 shared with one other process,
> > its PSS will be 1500.
> >                - lwn.net: "ELC: How much memory are applications really using?"
> > 
> > The PSS proposed by Matt Mackall is a very nice metic for measuring an process's
> > memory footprint. So collect and export it via /proc/<pid>/smaps.
> > 
> > Matt Mackall's pagemap/kpagemap and John Berthels's exmap can also do the job.
> > They are comprehensive tools. But for PSS, let's do it in the simple way. 
> 
> It's a bit odd that you attribute the description of PSS to LWN rather
> than me. But anyway:
> 
> Acked-by: Matt Mackall <[email protected]>

Sorry and thank you!
I'll change it in the next take.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux