Re: [PATCH] Use MAP_HUGETLB where supported (v3)

From: Abhijit Menon-Sen <ams(at)2ndquadrant(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Heikki Linnakangas <hlinnakangas(at)vmware(dot)com>, pgsql-hackers(at)postgresql(dot)org, andres(at)2ndquadrant(dot)com
Subject: Re: [PATCH] Use MAP_HUGETLB where supported (v3)
Date: 2013-10-30 17:09:20
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At 2013-10-30 11:04:36 -0400, tgl(at)sss(dot)pgh(dot)pa(dot)us wrote:
> > As a compromise, perhaps we can unconditionally round the size up to be
> > a multiple of 2MB? […]
> That sounds reasonably painless to me.

Here's a patch that does that and adds a DEBUG1 log message when we try
with MAP_HUGETLB and fail and fallback to ordinary mmap.

-- Abhijit

Attachment Content-Type Size
hugepages-v4.patch text/x-diff 9.4 KB

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