| From: | Heikki Linnakangas <hlinnaka(at)iki(dot)fi> |
|---|---|
| To: | Takashi Menjo <takashi(dot)menjou(dot)vg(at)hco(dot)ntt(dot)co(dot)jp>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: [PoC] Non-volatile WAL buffer |
| Date: | 2020-01-24 13:14:50 |
| Message-ID: | 5617eaf7-7554-4129-e3d9-dc1b71422080@iki.fi |
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| Lists: | pgsql-hackers |
On 24/01/2020 10:06, Takashi Menjo wrote:
> I propose "non-volatile WAL buffer," a proof-of-concept new feature. It
> enables WAL records to be durable without output to WAL segment files by
> residing on persistent memory (PMEM) instead of DRAM. It improves database
> performance by reducing copies of WAL and shortening the time of write
> transactions.
>
> I attach the first patchset that can be applied to PostgreSQL 12.0 (refs/
> tags/REL_12_0). Please see README.nvwal (added by the patch 0003) to use
> the new feature.
I have the same comments on this that I had on the previous patch, see:
https://www.postgresql.org/message-id/2aec6e2a-6a32-0c39-e4e2-aad854543aa8%40iki.fi
- Heikki
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