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Message-ID: <20141022121403.GI2804@localhost.localdomain> Date: Wed, 22 Oct 2014 14:14:03 +0200 From: Petr Holasek <pholasek@...hat.com> To: David Rientjes <rientjes@...gle.com> Cc: linux-mm@...ck.org, linux-kernel@...r.kernel.org, Dave Hansen <dave.hansen@...el.com> Subject: Re: [RFC][PATCH] add pagesize field to /proc/pid/numa_maps On Mon, 20 Oct 2014, David Rientjes <rientjes@...gle.com> wrote: > On Tue, 21 Oct 2014, Petr Holasek wrote: > > > There were some similar attempts to add vma's pagesize to numa_maps in the past, > > so I've distilled the most straightforward one - adding pagesize field > > expressing size in kbytes to each line. Although page size can be also obtained > > from smaps file, adding pagesize to numa_maps makes the interface more compact > > and easier to use without need for traversing other files. > > > > New numa_maps output looks like that: > > > > 2aaaaac00000 default file=/dev/hugepages/hugepagefile huge pagesize=2097152 dirty=1 N0=1 > > 7f302441a000 default file=/usr/lib64/libc-2.17.so pagesize=4096 mapped=65 mapmax=38 N0=65 > > > > Signed-off-by: Petr Holasek <pholasek@...hat.com> > > I guess the existing "huge" is insufficient on platforms that support > multiple hugepage sizes. Why do you think so? pagesize= could also distinguish between multiple hugepage sizes. -- Petr Holasek pholasek@...hat.com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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