From: Lennart Borgman <lennart.borgman@gmail.com>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: Yavor Doganov <yavor@gnu.org>, emacs-devel@gnu.org
Subject: Re: Surely 'bzr branch' shouldn't be this slow?
Date: Thu, 7 Jan 2010 20:46:34 +0100 [thread overview]
Message-ID: <e01d8a51001071146q42860af3h260518cd444d27fe@mail.gmail.com> (raw)
In-Reply-To: <jwvbph5hfd2.fsf-monnier+emacs@gnu.org>
On Thu, Jan 7, 2010 at 8:43 PM, Stefan Monnier <monnier@iro.umontreal.ca> wrote:
>>> But it probably thrashes wildly because Bzr ends up using more than
>>> 500MB.
>> Indeed, it eats the memory + 500 MB swap, but there's still 500 MB
>> swap availaible, so I can't explain myself this behavior.
>
> The amount of swap left is mostly irrelevant. What matters is that
> there more memory in active use than the amount of RAM you have, so the
> system spends its time moving data back&forth between RAM and swap,
> which brings the whole system to a crawl.
>
> http://en.wikipedia.org/wiki/Thrash_%28computer_science%29
Is it the design or the algorithm that are the problem?
next prev parent reply other threads:[~2010-01-07 19:46 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-03 17:47 Surely 'bzr branch' shouldn't be this slow? Alan Mackenzie
2010-01-03 17:59 ` Óscar Fuentes
2010-01-06 13:10 ` Alan Mackenzie
2010-01-06 13:28 ` Jason Rumney
2010-01-06 14:06 ` Óscar Fuentes
2010-01-06 18:23 ` Eli Zaretskii
2010-01-06 20:21 ` Stefan Monnier
2010-01-07 7:44 ` Yavor Doganov
2010-01-07 8:37 ` Lennart Borgman
2010-01-07 9:31 ` Juanma Barranquero
2010-01-07 19:18 ` Stephen Berman
2010-01-07 19:54 ` Eli Zaretskii
2010-01-07 20:09 ` Lennart Borgman
2010-01-07 21:48 ` Jason Earl
2010-01-07 23:48 ` Lennart Borgman
2010-01-08 2:07 ` Jason Earl
2010-01-08 7:10 ` Lennart Borgman
2010-01-08 8:13 ` Eli Zaretskii
2010-01-07 14:46 ` Stefan Monnier
2010-01-07 17:05 ` Yavor Doganov
2010-01-07 19:43 ` Stefan Monnier
2010-01-07 19:46 ` Lennart Borgman [this message]
2010-01-07 20:26 ` Thrashing [was: Surely 'bzr branch' shouldn't be this slow?] Stephen J. Turnbull
2010-01-07 20:20 ` Lennart Borgman
2010-01-07 13:40 ` Surely 'bzr update' shouldn't be this slow? [was: branch] Alan Mackenzie
2010-01-07 13:56 ` Surely 'bzr update' shouldn't be this slow? Óscar Fuentes
2010-01-07 14:03 ` Lennart Borgman
2010-01-07 15:18 ` Jan Djärv
2010-01-07 14:52 ` Alan Mackenzie
2010-01-07 15:00 ` Juanma Barranquero
2010-01-07 15:17 ` Karl Fogel
2010-01-07 17:51 ` Glenn Morris
2010-01-07 20:48 ` Karl Fogel
2010-01-07 21:21 ` Glenn Morris
2010-01-08 8:48 ` Eli Zaretskii
2010-01-07 15:17 ` Óscar Fuentes
2010-01-07 17:54 ` Stephen J. Turnbull
2010-01-07 15:06 ` Stefan Monnier
2010-01-06 14:37 ` Surely 'bzr branch' " Stefan Monnier
2010-01-07 5:00 ` Karl Fogel
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