| From: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> |
|---|---|
| To: | Greg Smith <greg(at)2ndQuadrant(dot)com> |
| Cc: | Stephen Frost <sfrost(at)snowman(dot)net>, Andres Freund <andres(at)2ndquadrant(dot)com>, Peter Eisentraut <peter_e(at)gmx(dot)net>, Robert Haas <robertmhaas(at)gmail(dot)com>, Jon Nelson <jnelson+pgsql(at)jamponi(dot)net>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: fallocate / posix_fallocate for new WAL file creation (etc...) |
| Date: | 2013-05-30 15:21:26 |
| Message-ID: | 20130530152126.GE2548@eldon.alvh.no-ip.org |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
Greg Smith escribió:
> The messy part of extending relations in larger chunks
> is how to communicate that back into the buffer manager usefully.
> The extension path causing trouble is RelationGetBufferForTuple
> calling ReadBufferBI. All of that is passing a single buffer
> around. There's no simple way I can see to rewrite it to handle
> more than one at a time.
No, but we can have it create several pages and insert them into the
FSM. So they aren't returned to the original caller but are available
to future users.
--
Álvaro Herrera http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Greg Smith | 2013-05-30 15:45:31 | Re: fallocate / posix_fallocate for new WAL file creation (etc...) |
| Previous Message | Dimitri Fontaine | 2013-05-30 15:11:12 | Re: pg_dump with postgis extension dumps rules separately |