Re: SHMMAX / SHMALL Was (Re: [PERFORM] postgresql-8.0.1 performance tuning)

2005-06-03 Thread Martin Fandel
ok i set it to 524288. ;) Am Freitag, den 03.06.2005, 21:10 +1200 schrieb Mark Kirkwood: > Martin Fandel wrote: > > Aah ok :) > > > > I've set my values now as follow (2GB RAM): > > > > SHMMAX=`cat /proc/meminfo | grep MemTotal | cut -d: -f 2 | awk '{print > > $1*1024/3}'` > > echo kernel.shmma

Re: SHMMAX / SHMALL Was (Re: [PERFORM] postgresql-8.0.1 performance

2005-06-03 Thread Mark Kirkwood
Martin Fandel wrote: Aah ok :) I've set my values now as follow (2GB RAM): SHMMAX=`cat /proc/meminfo | grep MemTotal | cut -d: -f 2 | awk '{print $1*1024/3}'` echo kernel.shmmax=${SHMMAX} >> /etc/sysctl.conf SHMALL=`expr ${SHMALL} / 4096 \* \( 4096 / 16 \)` echo kernel.shmall=${SHMALL} >> /etc

Re: SHMMAX / SHMALL Was (Re: [PERFORM] postgresql-8.0.1 performance tuning)

2005-06-03 Thread Martin Fandel
Aah ok :) I've set my values now as follow (2GB RAM): SHMMAX=`cat /proc/meminfo | grep MemTotal | cut -d: -f 2 | awk '{print $1*1024/3}'` echo kernel.shmmax=${SHMMAX} >> /etc/sysctl.conf SHMALL=`expr ${SHMALL} / 4096 \* \( 4096 / 16 \)` echo kernel.shmall=${SHMALL} >> /etc/sysctl.conf sysctl.co

Re: SHMMAX / SHMALL Was (Re: [PERFORM] postgresql-8.0.1 performance

2005-06-02 Thread Mark Kirkwood
Paul McGarry wrote: Based on the powerpostgresql.com Performance Checklist [1] and Annotated Postgresql.conf [2] I understand that: -I should have less than 1/3 of my total memory as shared_buffers -For my server 15000 is a fairly reasonable starting point for shared_buffers which is ~120MB -I

SHMMAX / SHMALL Was (Re: [PERFORM] postgresql-8.0.1 performance tuning)

2005-06-02 Thread Paul McGarry
On 6/1/05, Mark Kirkwood <[EMAIL PROTECTED]> wrote: > Cosimo Streppone wrote: > > # Config > >> /etc/sysctl.conf: > >> kernel.shmall = 786432000 > >> kernel.shmmax = 786432000 > > > > I think you have a problem here. > > kernel.shmmax should *not* be set to an amount of RAM, bu