Date: Wed, 18 Feb 2015 20:38:59 -0800 From: Alfred Perlstein <alfred@freebsd.org> To: freebsd-arch@freebsd.org Subject: Re: getting NUMA into the tree (userland most interesting for me) Message-ID: <54E568E3.3000905@freebsd.org> In-Reply-To: <20150219041012.GJ1953@funkthat.com> References: <20150219041012.GJ1953@funkthat.com>
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On 2/18/15 8:10 PM, John-Mark Gurney wrote: > I would like to help drive getting NUMA into the tree. Specificly, > getting userland allocations to be done from a specified domain. > > I've looked at the projects/numa tree, but it appears that not much was > done to get userland mappings to be NUMA aware. > > How are we going to do this? Do people have code to do this? > > I've looked at how Linux does this, at least from a programming > interface. They use mmap to create the mapping, and then use the call > mbind to tell the kernel where to handle the allocations. Is this > what people are thinking? > > I've checked the wiki status, and the userland section is quite > empty. > > Thanks. > Going with Linux makes sense at a glance just because it means that the software can run on us without mods. -Alfred
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