From: rminnich@gmail.com (ron minnich)
Subject: [9fans] Go Plan 9
Date: Mon, 4 Apr 2011 08:18:09 -0700 [thread overview]
Message-ID: <BANLkTimMsU3GCh2On9tSvTTzzVz0WyYrHA@mail.gmail.com> (raw)
In-Reply-To: <946377fc99d55f66708553c16bb698de@coraid.com>
On Sun, Apr 3, 2011 at 2:24 PM, erik quanstrom <quanstro at labs.coraid.com> wrote:
>> The reason it doesn't work on 9vx is because the 32 bit Go runtime
>> reserves a large chunk of address space (currently 768mb). ?On all
>> other platforms, this is accomplised with an mmap equivalient, which
>> we all know won't work on Plan 9.
>>
>
> if i read the thread on this topic correctly, this reservation
> isn't necessary on plan 9, since there are no shared libraries
> and the heap will always be contiguous.
>
no, the shared libraries are not going to affect the heap size.
Certainly not to this scale.
My understanding was that Go used this large sparse address space to
effect for its garbage collection; the fact that it is backed by mmap
of anonymous memory is what makes it work, since pages are not
allocated until touched. Russ?
ron
next prev parent reply other threads:[~2011-04-04 15:18 UTC|newest]
Thread overview: 83+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <AANLkTik3gx8QK7O-+O=R8oFELTt6WgVHO3dJV51cZiPQ@mail.gmail.com>
2011-04-02 22:56 ` Pavel Zholkover
2011-04-02 23:00 ` andrey mirtchovski
2011-04-02 23:52 ` David Leimbach
2011-04-03 0:04 ` ron minnich
2011-04-03 0:04 ` ron minnich
2011-04-03 0:11 ` ron minnich
2011-04-03 0:16 ` andrey mirtchovski
2011-04-03 0:09 ` andrey mirtchovski
2011-04-03 7:57 ` Pavel Zholkover
2011-04-03 2:18 ` Skip Tavakkolian
2011-04-03 2:48 ` Rob Pike
2011-04-03 5:07 ` Lucio De Re
2011-04-03 18:50 ` Steve Simon
2011-04-03 20:57 ` Lucio De Re
2011-04-03 7:45 ` Pavel Zholkover
2011-04-03 7:51 ` andrey mirtchovski
2011-04-03 9:16 ` erik quanstrom
2011-04-03 21:13 ` Anthony Martin
2011-04-03 21:16 ` Anthony Martin
2011-04-03 21:23 ` Pavel Zholkover
2011-04-03 22:30 ` Anthony Martin
2011-04-04 7:37 ` Pavel Zholkover
2011-04-04 17:27 ` Lucio De Re
2011-04-04 19:18 ` Pavel Zholkover
2011-04-04 20:05 ` Lucio De Re
2011-04-04 20:11 ` Lucio De Re
2011-04-04 20:33 ` erik quanstrom
2011-04-05 4:52 ` Lucio De Re
2011-04-04 23:10 ` ron minnich
2011-04-05 4:33 ` Lucio De Re
2011-04-05 4:56 ` erik quanstrom
2011-04-05 6:37 ` Pavel Zholkover
2011-04-05 19:06 ` Yaroslav
2011-04-05 20:14 ` Paul Lalonde
2011-04-06 13:43 ` Lucio De Re
2011-04-09 17:51 ` Sergey Kish
2011-04-09 18:24 ` Skip Tavakkolian
2011-04-09 18:34 ` Pavel Zholkover
2011-04-03 21:24 ` erik quanstrom
2011-04-04 15:18 ` ron minnich [this message]
2011-04-04 15:59 ` erik quanstrom
2011-04-04 23:09 ` ron minnich
2011-04-04 23:17 ` erik quanstrom
2011-04-04 23:27 ` ron minnich
2011-04-05 4:00 ` ron minnich
2011-04-05 4:22 ` Russ Cox
2011-04-05 4:47 ` Lucio De Re
2011-04-05 5:11 ` Russ Cox
2011-04-05 5:44 ` Lucio De Re
2011-04-05 5:53 ` Russ Cox
2011-04-05 15:48 ` ron minnich
2011-04-05 17:33 ` ron minnich
2011-04-05 17:33 ` David Leimbach
2011-04-05 17:32 ` David Leimbach
2011-04-05 17:36 ` erik quanstrom
2011-04-05 17:42 ` David Leimbach
2011-04-05 17:43 ` andrey mirtchovski
2011-04-05 17:48 ` David Leimbach
2011-04-05 10:42 ` Anthony Martin
2011-04-03 9:40 Pavel Zholkover
2011-04-03 10:34 ` erik quanstrom
2011-04-03 14:42 ` Lucio De Re
2011-04-03 14:57 ` Lucio De Re
2011-04-03 15:43 ` erik quanstrom
2011-04-03 16:25 ` Skip Tavakkolian
2011-04-03 17:46 ` erik quanstrom
2011-04-06 7:27 ` Skip Tavakkolian
2011-04-03 17:43 ` Devon H. O'Dell
2011-04-03 17:58 ` Lucio De Re
2011-04-03 18:20 ` Rob Pike
2011-04-03 20:45 ` Lucio De Re
2011-04-03 16:49 Pavel Zholkover
2011-04-03 17:36 ` Lucio De Re
2011-04-04 19:19 Russ Cox
2011-04-05 19:15 Jason Catena
2011-04-06 13:27 Joel C. Salomon
2011-04-06 16:16 ` David Leimbach
2011-04-09 18:53 Pavel Zholkover
2011-04-09 19:04 ` Skip Tavakkolian
2011-04-09 22:01 ` Pavel Zholkover
2011-04-10 5:07 ` Lucio De Re
2011-04-10 6:28 ` Pavel Zholkover
2011-04-10 9:15 ` Lucio De Re
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