| From: | Christian Kruse <christian(at)2ndQuadrant(dot)com> |
|---|---|
| To: | Heikki Linnakangas <hlinnakangas(at)vmware(dot)com> |
| Cc: | Andres Freund <andres(at)2ndQuadrant(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Bruce Momjian <bruce(at)momjian(dot)us>, Peter Eisentraut <peter_e(at)gmx(dot)net>, Abhijit Menon-Sen <ams(at)2ndQuadrant(dot)com>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: [PATCH] Use MAP_HUGETLB where supported (v3) |
| Date: | 2014-02-26 14:25:24 |
| Message-ID: | 20140226142524.GK1400@defunct.ch |
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| Lists: | pgsql-hackers |
Hi,
On 26/02/14 14:34, Heikki Linnakangas wrote:
> That still says "The setting is ignored on other systems". That's not quite
> true: as explained later in the section, if you set huge_tlb_pages=on and
> the platform doesn't support it, the server will refuse to start.
I added a sentence about it.
> "Using huge TLB pages reduces overhead when using large contiguous chunks of
> memory, like PostgreSQL does."
Sentence added.
> That's good advice, but perhaps s/calculate/estimate/. It's just an
> approximation, after all.
Fixed.
New patch version is attached.
Best regards,
--
Christian Kruse http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
| Attachment | Content-Type | Size |
|---|---|---|
| huge_tlb_docs-v3.patch | text/x-diff | 3.7 KB |
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