| From: | Takashi Horikawa <t-horikawa(at)aj(dot)jp(dot)nec(dot)com> |
|---|---|
| To: | Fabien COELHO <coelho(at)cri(dot)ensmp(dot)fr> |
| Cc: | "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Partitioned checkpointing |
| Date: | 2015-09-12 02:49:30 |
| Message-ID: | 73FA3881462C614096F815F75628AFCD03558AE0@BPXM01GP.gisp.nec.co.jp |
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| Thread: | |
| Lists: | pgsql-hackers |
Hello Fabien,
> I wanted to do some tests with this POC patch. For this purpose, it would
> be nice to have a guc which would allow to activate or not this feature.
Thanks.
> Could you provide a patch with such a guc? I would suggest to have the
number
> of partitions as a guc, so that choosing 1 would basically reflect the
> current behavior.
Sure.
Please find the attached patch.
A guc parameter named 'checkpoint_partitions' is added.
This can be set to 1, 2, 4, 8, or 16.
Default is 16. (It is trivial at this present, I think.)
And some definitions are moved from bufmgr.h to xlog.h.
It would be also trivial.
Best regards.
--
Takashi Horikawa
NEC Corporation
Knowledge Discovery Research Laboratories
| Attachment | Content-Type | Size |
|---|---|---|
| partitioned-checkpointing-v2.patch | application/octet-stream | 30.6 KB |
| smime.p7s | application/pkcs7-signature | 6.5 KB |
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