| From: | Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com> |
|---|---|
| To: | Konstantin Knizhnik <k(dot)knizhnik(at)postgrespro(dot)ru> |
| Cc: | PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>, Sean Chittenden <seanc(at)joyent(dot)com> |
| Subject: | Re: WAL prefetch |
| Date: | 2018-06-14 06:52:51 |
| Message-ID: | CAEepm=0fZ02c0ZaU9h-y1rn+QzZWHh=mVHfk0D1vLr0S+Ns6Yw@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Thu, Jun 14, 2018 at 1:09 AM, Konstantin Knizhnik
<k(dot)knizhnik(at)postgrespro(dot)ru> wrote:
> pg_wal_prefetch function will infinitely traverse WAL and prefetch block
> references in WAL records
> using posix_fadvise(WILLNEED) system call.
Hi Konstantin,
Why stop at the page cache... what about shared buffers?
--
Thomas Munro
http://www.enterprisedb.com
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