| From: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> |
|---|---|
| To: | Heikki Linnakangas <hlinnakangas(at)vmware(dot)com> |
| Cc: | Andres Freund <andres(at)2ndquadrant(dot)com>, Abhijit Menon-Sen <ams(at)2ndquadrant(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: [PATCH] Use MAP_HUGETLB where supported (v3) |
| Date: | 2014-01-27 19:20:23 |
| Message-ID: | 20140127192023.GJ10723@eldon.alvh.no-ip.org |
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| Lists: | pgsql-hackers |
Heikki Linnakangas wrote:
> I spent some time whacking this around, new patch version attached.
> I moved the mmap() code into a new function, that leaves the
> PGSharedMemoryCreate more readable.
Did this patch go anywhere?
Someone just pinged me about a kernel scalability problem in Linux with
huge pages; if someone did performance measurements with this patch,
perhaps it'd be good to measure again with the kernel patch in place.
https://lkml.org/lkml/2014/1/26/227
--
Álvaro Herrera http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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