Re: bgwriter idle-mode behavior (was Re: Latch for the WAL writer)

Tom Lane <tgl@sss.pgh.pa.us>

From: Tom Lane <tgl@sss.pgh.pa.us>

To: Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>

Cc: Peter Geoghegan <peter@2ndquadrant.com>, Greg Smith <greg@2ndquadrant.com>, pgsql-hackers@postgreSQL.org

Date: 2012-05-10T06:38:06Z

Lists: pgsql-hackers

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

Make bgwriter sleep longer when it has no work to do, to save electricity.
- 6d90eaaa89a0 9.2.0 cited

Heikki Linnakangas <heikki.linnakangas@enterprisedb.com> writes:
> On 10.05.2012 00:34, Tom Lane wrote:
>> After further study of the bgwriter hibernation patch (commit
>> 6d90eaaa89a007e0d365f49d6436f35d2392cfeb), I think that my worries about
>> race conditions in the use of the bgwriter's latch are really the least
>> of its problems.

> Seems reasonable. Would you like me to write a patch, or are you already 
> on it?

Done already, but please review the commit.

			regards, tom lane