| From: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> |
|---|---|
| To: | Gavin Flower <GavinFlower(at)archidevsys(dot)co(dot)nz> |
| Cc: | Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Dilip kumar <dilip(dot)kumar(at)huawei(dot)com>, Magnus Hagander <magnus(at)hagander(dot)net>, Jan Lentfer <Jan(dot)Lentfer(at)web(dot)de>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Sawada Masahiko <sawada(dot)mshk(at)gmail(dot)com>, Euler Taveira <euler(at)timbira(dot)com(dot)br> |
| Subject: | Re: TODO : Allow parallel cores to be used by vacuumdb [ WIP ] |
| Date: | 2014-09-26 18:47:42 |
| Message-ID: | 20140926184742.GE5311@eldon.alvh.no-ip.org |
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| Lists: | pgsql-hackers |
Gavin Flower wrote:
> Curious: would it be both feasible and useful to have multiple
> workers process a 'large' table, without complicating things too
> much? The could each start at a different position in the file.
Feasible: no. Useful: maybe, we don't really know. (You could just as
well have a worker at double the speed, i.e. double vacuum_cost_limit).
--
Álvaro Herrera http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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