linux-kernel - Re: [PATCH 2/2 v2] perf bench futex: add NUMA support

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Date:   Wed, 19 Oct 2016 11:16:16 -0700
From:   Davidlohr Bueso <dave@...olabs.net>
To:     Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Jiri Olsa <jolsa@...hat.com>, Jiri Olsa <jolsa@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org,
        Davidlohr Bueso <dbueso@...e.de>
Subject: Re: [PATCH 2/2 v2] perf bench futex: add NUMA support

On Mon, 17 Oct 2016, Sebastian Andrzej Siewior wrote:

>By default the application uses malloc() and all available CPUs. This
>patch introduces NUMA support which means:
>- memory is allocated node local via numa_alloc_local()
>- all CPUs of the specified NUMA node are used. This is also true if the
>  number of threads set is greater than the number of CPUs available on
>  this node.

Can't we just use numactl to bind cpus and memory to be node-local?

Thanks,
Davidlohr