Messages in this thread | | | From | KOSAKI Motohiro <> | Subject | Re: [RFC Patch] getrusage: fill ru_ixrss, ru_idrss and ru_isrss fields | Date | Tue, 8 Dec 2009 18:21:19 +0900 (JST) |
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> KOSAKI Motohiro wrote: > > The next three fields, the subject of this patch, are named ru_XXrss: > > though the 80-column comment omits to say "resident set" before "size", > > I believe they'd be expected to account (subdivided) resident set sizes? > > > > > > your calculation is not rss nor not integral. > > > > Hmm, I misunderstood rss here. Does it mean the memory stayed in > physical mem? i.e. not swapped out.
Yes.
Plus, 'integral' mean "tick * rss". but in dyntick environment, per tick statistics is not so easy nor low cost.
> So, if I want to get those rss statistics, I have to add some more > mm_counter by myself? I only find file_rss and anon_rss in mm_struct.
Hmm.. I doubt nobody use such statistics. if nobody explain real world usage, I oppose to add new counter overhead.
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