Re: postgresql recommendation memory

Scott hi, i calculate all of my jdbc pool size. Maximum is 300 connections
from components wich use jdbc. I don't think that this is a good idea use
pgbouncer, because our application using spring framework which using jdbc
and prepared statement. I try to talk with our developer about disabling
prepared statement in this framework, they don't want do this. Thats why i
will try to upgrade HW and buy CPU with more core as you say based on
formula 3-4xcore. But most of this connection is idle. This is a web based
app not a datawarehouse, thats why all this connection is lightwear.

About my db freeze i set this kernel parameter:
echo 1048576 > /proc/sys/vm/min_free_kbytes
echo 80 > /proc/sys/vm/vfs_cache_pressure

And my freeze intervals is steel smaller. I try to dig deeper.

2013/11/6 Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com>

> Also also, the definitive page for postgres and dirty pages etc is here:
>
> http://www.westnet.com/~gsmith/content/linux-pdflush.htm
>
> Not sure if it's out of date with more modern kernels. Maybe Greg will
> chime in.
>

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