Re: Mac OS X shared_buffers not same as postgresql.conf file
От | Guillaume Lelarge |
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Тема | Re: Mac OS X shared_buffers not same as postgresql.conf file |
Дата | |
Msg-id | 1316899307.2122.1.camel@localhost.localdomain обсуждение исходный текст |
Ответ на | Re: Mac OS X shared_buffers not same as postgresql.conf file (Neil Tiffin <neil@neiltiffin.com>) |
Ответы |
Re: Mac OS X shared_buffers not same as postgresql.conf file
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Список | pgsql-general |
On Sat, 2011-09-24 at 14:43 -0500, Neil Tiffin wrote: > On Sep 24, 2011, at 1:31 PM, Joe Conway wrote: > > > On 09/23/2011 02:33 PM, Neil Tiffin wrote: > >> I have shared_buffers in the config file set for 32 MB and pgAdmin > >> reports a value of 32 MB, but pgAdmin also says the current value is > >> 4096. Can anyone point me to any docs about why the current value > >> may be different than the config value? Temp_buffers are the same > >> way, config file 8MB, but current value in pgAdmin is 1024? > > > > Internally shared_buffers is tracked as number of 8K pages. > > > > postgres=# show shared_buffers; > > shared_buffers > > ---------------- > > 32MB > > (1 row) > > > > postgres=# select setting from pg_settings where name='shared_buffers'; > > setting > > --------- > > 4096 > > (1 row) > > > > postgres=# select 4096 * 8 / 1024 as MB; > > mb > > ---- > > 32 > > (1 row) > > > > HTH, > > Excellent, just what I was looking for. I know there had to be a simple explanation, even though it seems a little retardedthat pgAdmin does not point this out. And how do you get that value from pgAdmin? the config editor gives me the value with its unit, so I guess it's not from the config editor. -- Guillaume http://blog.guillaume.lelarge.info http://www.dalibo.com
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