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Date: Tue, 9 Sep 2014 14:25:18 +0400
From: Slawa Olhovchenkov <slw@zxy.spb.ru>
To: John Baldwin <jhb@freebsd.org>
Subject: Re: svn commit: r270759 - in head/sys: cddl/compat/opensolaris/kern
 cddl/compat/opensolaris/sys cddl/contrib/opensolaris/uts/common/fs/zfs vm
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Cc: src-committers@freebsd.org, Peter Wemm <peter@wemm.org>,
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 Dmitry Morozovsky <marck@rinet.ru>, Andriy Gapon <avg@freebsd.org>,
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On Mon, Sep 08, 2014 at 11:17:51AM -0400, John Baldwin wrote:

> On Sunday, September 07, 2014 04:56:49 PM Slawa Olhovchenkov wrote:
> > PS: very bad that 'data limit' don't anymore reflect application
> > memory consumer. and very small application can adapt to 'no memory'
> > from system.
> 
> You can use RLIMIT_AS instead of RLIMIT_DATA.  jemalloc can also be configured 
> to use sbrk(), though I think there's no way to prevent it from falling back 
> to mmap(MAP_ANON) if sbrk() fails.

Formally you are right. Realy this is scorn. And I don't know how
rightly. May be account in RLIMIT_DATA MAP_ANON? Anyway firefox don't
run GC if malloc fail and this is bad.