Messages in this thread |  | | | Date | Sun, 8 Nov 2009 18:04:53 +0100 | | From | Pavel Machek <> | | Subject | Re: [PATCH] show per-process swap usage via procfs |
On Thu 2009-11-05 10:04:01, Christoph Lameter wrote: > On Thu, 5 Nov 2009, KOSAKI Motohiro wrote: > > > > On Wed, 4 Nov 2009, KAMEZAWA Hiroyuki wrote: > > > > > > > Now, anon_rss and file_rss is counted as RSS and exported via /proc. > > > > RSS usage is important information but one more information which > > > > is often asked by users is "usage of swap".(user support team said.) > > > > > > Hmmm... Could we do some rework of the counters first so that they are per > > > cpu? > > > > per-cpu swap counter? > > It seems overkill effort.... > > The other alternative is to use atomic ops which are significantly slower > and have an impact on critical sections.
...but compared to disk i/o, overhead should be almost zero, right? Keep it simple...
Pavel
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