Date: Fri, 4 Jan 2008 16:12:47 +0300 From: Andrey Chernov <ache@nagual.pp.ru> To: Poul-Henning Kamp <phk@phk.freebsd.dk> Cc: freebsd-current@FreeBSD.ORG, Jason Evans <jasone@FreeBSD.ORG> Subject: Re: sbrk(2) broken Message-ID: <20080104131247.GA17816@nagual.pp.ru> In-Reply-To: <5705.1199451431@critter.freebsd.dk> References: <20080104122149.GA17103@nagual.pp.ru> <5705.1199451431@critter.freebsd.dk>
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On Fri, Jan 04, 2008 at 12:57:11PM +0000, Poul-Henning Kamp wrote: > There is address space allocated to the process (via sbrk/mmap) > > A subset of this, is address space allocated by the program (via malloc) > > ...and then there is memory actually in use, which is an entirely different > thing, of which we currently only have some kind of clue in the VM > system. Then, we need sysctl to fetch that "memory actually in use" from the kernel and compare that with getrlimit() which allows malloc() to return 0 when needed. -- http://ache.pp.ru/
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