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From: Rick Hohensee <humbubba@smarty.smart.net>
To: linux-kernel@vger.kernel.org
Subject: Re: /proc/<n>/maps growing...
Date: Mon, 6 Aug 2001 23:46:19 -0400 (EDT)	[thread overview]
Message-ID: <200108070346.XAA03685@smarty.smart.net> (raw)

>> I believe the best way is to allocate always the new vma, and to hide
>> the merging into the lowlevel of a new insert_vm_struct (with a special
>> function ala merge_segments that we can share with mprotect like in
>2.2).
>

Torvalds
>Oh, and THAT is going to speed things up?
>
>Hint: the merging actually happens at a fairly high percentage for the
>common cases. We win more by walking the tree twice and avoiding the

BROWNNOSE
No, I have nothing to say about malloc/mmap/etc. I just want to add some
balancing positiveness to offset my usual polemics. Torvalds harps on
optimizing for the common case all the time. This little voice with a
faint scandanavian accent in the back of my head keeps saying "optimize
for the common case". It is a wise little voice. The common case is
usually beyond the ken of a compiler, it's something a human has to
know, it works, can pay off huge, and works with anything from assembly
to Bash. 
END BROWNNOSE   
RESUME FLAMEBAIT

Rick Hohensee
						www.clienux.com

             reply	other threads:[~2001-08-07  3:27 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-08-07  3:46 Rick Hohensee [this message]
  -- strict thread matches above, loose matches on Subject: below --
2001-08-06  6:41 /proc/<n>/maps growing David Luyer
2001-08-06  7:43 ` Chris Wedgwood
2001-08-06  8:59 ` Andrea Arcangeli
2001-08-06  9:20   ` David S. Miller
2001-08-06  9:46     ` Chris Wedgwood
2001-08-06 10:57     ` Andrea Arcangeli
2001-08-06 12:26       ` Chris Wedgwood
2001-08-06 12:36         ` Andrea Arcangeli
2001-08-06 12:45           ` Chris Wedgwood
2001-08-06 12:50             ` Andrea Arcangeli
2001-08-06 13:06               ` David S. Miller
2001-08-06 13:29                 ` Andrea Arcangeli
2001-08-06 17:27                   ` Linus Torvalds
2001-08-06 17:20           ` Linus Torvalds
2001-08-07  2:24             ` David Luyer
2001-08-06 17:46           ` Anton Altaparmakov
2001-08-06 16:12     ` Rik van Riel
2001-08-06 17:46       ` Linus Torvalds
2001-08-06 10:30   ` Jakub Jelinek
2001-08-06 10:49     ` Andrea Arcangeli
2001-08-06 11:01       ` Jakub Jelinek
2001-08-06 11:25         ` Andrea Arcangeli
2001-08-06 17:17         ` Linus Torvalds
2001-08-06 17:26           ` Alan Cox
2001-08-06 22:55             ` Chris Wedgwood
2001-08-06 11:16       ` Jakub Jelinek
2001-08-06 17:18       ` Linus Torvalds

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