| From: | Heikki Linnakangas <hlinnakangas(at)vmware(dot)com> |
|---|---|
| To: | Jeff Davis <pgsql(at)j-davis(dot)com> |
| Cc: | Simon Riggs <simon(at)2ndQuadrant(dot)com>, Greg Smith <greg(at)2ndquadrant(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Enabling Checksums |
| Date: | 2013-03-04 21:22:01 |
| Message-ID: | 51351079.1@vmware.com |
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| Thread: | |
| Lists: | pgsql-hackers |
On 04.03.2013 23:00, Jeff Davis wrote:
> On Mon, 2013-03-04 at 22:27 +0200, Heikki Linnakangas wrote:
>> Yeah, fragmentation will certainly hurt some workloads. But how badly,
>> and which workloads, and how does that compare with the work that
>> PostgreSQL has to do to maintain the checksums? I'd like to see some
>> data on those things.
>
> I think we all would. Btrfs will be a major filesystem in a few years,
> and we should be ready to support it.
Perhaps we should just wait a few years? If we suspect that this becomes
obsolete in a few years, it's probably better to just wait, than add a
feature we'll have to keep maintaining. Assuming it gets committed
today, it's going to take a year or two for 9.3 to get released and all
the bugs ironed out, anyway.
- Heikki
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