| From: | Simon Riggs <simon(at)2ndQuadrant(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Jeff Janes <jeff(dot)janes(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Make HeapTupleSatisfiesMVCC more concurrent |
| Date: | 2015-08-26 07:58:23 |
| Message-ID: | CANP8+jKsu8J=rZHGGS1H3FFov=rxRrc1xBtmSh+DsXbXLjDO5g@mail.gmail.com |
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| Lists: | pgsql-hackers |
On 25 August 2015 at 21:51, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>
> I don't mean to dismiss the potential for further optimization inside
> XidInMVCCSnapshot (for instance, the one-XID-cache idea sounds promising);
> but I think that's material for further research and a separate patch.
>
Patch attached. Doesn't seem worth a separate thread.
> It's not clear to me if anyone wanted to do further review/testing of
> this patch, or if I should go ahead and push it (after fixing whatever
> comments need to be fixed).
>
Push, please.
--
Simon Riggs http://www.2ndQuadrant.com/
<http://www.2ndquadrant.com/>
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
| Attachment | Content-Type | Size |
|---|---|---|
| xidinmvccsnapshot_cache.v1.patch | application/octet-stream | 2.4 KB |
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