From mboxrd@z Thu Jan  1 00:00:00 1970
MIME-Version: 1.0
Date: Mon,  4 Apr 2011 15:19:41 -0400
Message-ID: <BANLkTi=UGG6kYMuYDHaNDEDfTO_m8cbTqw@mail.gmail.com>
Subject: Re: [9fans] Go Plan 9
From: Russ Cox <rsc@swtch.com>
To: 9fans <9fans@9fans.net>
Content-Type: text/plain; charset=UTF-8
Topicbox-Message-UUID: c8269042-ead6-11e9-9d60-3106f5b1d025

[Sorry for being quiet, I got unsubscribed from 9fans!]

> 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?

The large sparse address space is nice on 64-bit
because you can do some address calculation tricks.
On 32-bit it just doesn't matter.  I think the current
code in package runtime is correct already for Plan 9.

Russ