Re: [PERFORM] Joel's Performance Issues WAS : Opteron vs Xeon

Joel, thanks. A couple of things jump out there for
me, not a problem for a routine ODBC connection, but
perhaps in the "lotsa stuff" context of your current
explorations, it might be relevant?

I am completely shooting from the hip, here, but...if
it were my goose to cook, I'd be investigating

Session("StringConn") = "DRIVER={PostgreSQL};DATABASE=wazagua;SERVER=192.168.123.252;PORT=5432;UID=;
PWD=;ReadOnly=0;Protocol=6.4;

|| Protocol? Is this related to version? is the driver waaaay old?

FakeOidIndex=0;ShowOidColumn=0;RowVersioning=0;
ShowSystemTables=0;ConnSettings=;Fetch=100;

|| Fetch great for OLTP, lousy for batch?

Socket=4096;UnknownSizes=0;MaxVarcharSize=254;MaxLongVarcharSize=8190;

|| what ARE the datatypes and sizes in your particular case?

Debug=0;

|| a run with debug=1 probably would spit up something interesting....

CommLog=0;Optimizer=1;

|| Optimizer? that's a new one on me....

Ksqo=1;UseDeclareFetch=0;TextAsLongVarchar=1;UnknownsAsLongVarchar=0;BoolsAsChar=1;Parse=0;CancelAsFreeStmt=;ExtraSysTablePrefixes=dd_;LFConversion=1;UpdatableCursors=1;DisallowPremature=0;TrueIsMinus1=0;BI=0;ByteaAsLongVarBinary=0;UseServerSidePrepare=0"

|| that's about all I can see, prima facie. I'll be very curious to know if ODBC is
any part of your performance equation.

HTH,

Ross

-----Original Message-----
From: Joel Fradkin [mailto:jfradkin(at)wazagua(dot)com]
Sent: Thursday, April 21, 2005 10:54 AM
To: Mohan, Ross
Cc: pgsql-odbc(at)postgresql(dot)org; PostgreSQL Perform
Subject: RE: [PERFORM] Joel's Performance Issues WAS : Opteron vs Xeon

Here is the connect string I am using.
It could be horrid as I cut it from ODBC program.

Session("StringConn") = "DRIVER={PostgreSQL};DATABASE=wazagua;SERVER=192.168.123.252;PORT=5432;UID=;
PWD=;ReadOnly=0;Protocol=6.4;FakeOidIndex=0;ShowOidColumn=0;RowVersioning=0;
ShowSystemTables=0;ConnSettings=;Fetch=100;Socket=4096;UnknownSizes=0;MaxVar
charSize=254;MaxLongVarcharSize=8190;Debug=0;CommLog=0;Optimizer=1;Ksqo=1;Us
eDeclareFetch=0;TextAsLongVarchar=1;UnknownsAsLongVarchar=0;BoolsAsChar=1;Pa
rse=0;CancelAsFreeStmt=0;ExtraSysTablePrefixes=dd_;LFConversion=1;UpdatableC
ursors=1;DisallowPremature=0;TrueIsMinus1=0;BI=0;ByteaAsLongVarBinary=0;UseS
erverSidePrepare=0"

Joel Fradkin

-----Original Message-----
From: Mohan, Ross [mailto:RMohan(at)arbinet(dot)com]
Sent: Thursday, April 21, 2005 9:42 AM
To: jfradkin(at)wazagua(dot)com
Subject: RE: [PERFORM] Joel's Performance Issues WAS : Opteron vs Xeon

FWIW, ODBC has variables to tweak, as well. fetch/buffer sizes, and the like.

Maybe one of the ODBC cognoscenti here can chime in more concretely....