From: Andrea Arcangeli <andrea@novell.com>
To: Albert Cahalan <albert@users.sf.net>
Cc: William Lee Irwin III <wli@holomorphy.com>,
Hugh Dickins <hugh@veritas.com>,
linux-kernel mailing list <linux-kernel@vger.kernel.org>,
Andrew Morton OSDL <akpm@osdl.org>,
Albert Cahalan <albert@users.sourceforge.net>
Subject: Re: per-process shared information
Date: Fri, 15 Oct 2004 19:02:36 +0200 [thread overview]
Message-ID: <20041015170236.GC17849@dualathlon.random> (raw)
In-Reply-To: <1097851258.2666.13421.camel@cube>
On Fri, Oct 15, 2004 at 10:40:58AM -0400, Albert Cahalan wrote:
> Why not get rid of rss too then? It's overhead.
"rss" is O(1), old "shared" is O(N). With N being a few terabytes of
data divided by PAGE_SIZE...
on any desktop machine you couldn't notice the difference, it only
matters on the high end.
But I believe Hugh's proposal will make everyone happy. Anything that we
stuff in statm must have O(1) complexity (or at least O(log(N)),
otherwise ps v will nearly stop running in the big boxes.
next prev parent reply other threads:[~2004-10-15 17:04 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-13 23:10 per-process shared information Andrea Arcangeli
2004-10-14 21:47 ` Marcelo Tosatti
2004-10-14 23:58 ` Andrea Arcangeli
2004-10-14 23:17 ` Marcelo Tosatti
2004-10-15 10:45 ` William Lee Irwin III
2004-10-14 21:49 ` Hugh Dickins
2004-10-14 22:11 ` William Lee Irwin III
2004-10-14 22:37 ` Andrea Arcangeli
2004-10-15 10:51 ` William Lee Irwin III
2004-10-15 11:56 ` Hugh Dickins
2004-10-15 13:19 ` Albert Cahalan
2004-10-15 14:28 ` William Lee Irwin III
2004-10-15 14:40 ` Albert Cahalan
2004-10-15 14:52 ` William Lee Irwin III
2004-10-15 17:02 ` Andrea Arcangeli [this message]
2004-10-15 16:20 ` Andrea Arcangeli
2004-10-15 16:31 ` Albert Cahalan
2004-10-15 17:10 ` William Lee Irwin III
2004-10-15 19:29 ` Albert Cahalan
2004-10-15 17:13 ` Andrea Arcangeli
2004-10-15 17:51 ` Albert Cahalan
2004-10-15 18:14 ` Andrea Arcangeli
2004-10-15 18:30 ` William Lee Irwin III
2004-10-15 18:40 ` Andrea Arcangeli
2004-10-15 18:47 ` William Lee Irwin III
2004-10-15 19:23 ` Andrea Arcangeli
2004-10-15 20:41 ` William Lee Irwin III
2004-10-15 20:52 ` Andrea Arcangeli
2004-10-15 21:16 ` William Lee Irwin III
2004-10-15 21:28 ` Andrea Arcangeli
2004-10-15 21:40 ` William Lee Irwin III
2004-10-15 22:04 ` Hugh Dickins
2004-10-19 15:09 ` Bill Davidsen
2004-10-15 16:04 ` Andrea Arcangeli
2004-10-19 15:18 ` Bill Davidsen
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