| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Initializing initFileRelationIds list via write is unsafe |
| Date: | 2015-06-08 16:01:02 |
| Message-ID: | CA+TgmoaYUBsq_AHapow2HhqjQFXbAO2SpLCLMm=b5+SfLBb2pA@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Sat, Jun 6, 2015 at 11:51 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> This suggests that CLOBBER_CACHE_ALWAYS is actually missing a pretty
> large part of the cache behavioral space. Maybe we should devise some
> sort of "CLOBBER_CACHE_RANDOMLY" option that would inject cache flush
> events more selectively, perhaps only once every thousand opportunities
> or so. And perhaps not only full cache reset events, though I confess
> to not being sure what that ought to look like.
It should probably be done pseudo-randomly, but otherwise, +1.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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