Re: Process wakeups when idle and power consumption

Peter Geoghegan <peter@2ndquadrant.com>

From: Peter Geoghegan <peter@2ndquadrant.com>
To: Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>
Cc: Fujii Masao <masao.fujii@gmail.com>, Tom Lane <tgl@sss.pgh.pa.us>, pgsql-hackers@postgresql.org
Date: 2011-05-10T09:14:35Z
Lists: pgsql-hackers
On 10 May 2011 09:45, Heikki Linnakangas
<heikki.linnakangas@enterprisedb.com> wrote:

> I think we need to refactor the function into something like:
>
> #define WL_LATCH_SET    1
> #define WL_SOCKET_READABLE 2
> #define WL_SOCKET_WRITEABLE 4
> #define WL_TIMEOUT      8
> #define WL_POSTMASTER_DEATH 16

While I agree with the need to not box ourselves into a corner on the
latch interface by making sweeping assumptions, isn't the fact that a
socket became readable or writable strictly an implementation detail?

-- 
Peter Geoghegan       http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training and Services