Обсуждение: Application bottlenecks

Hi Carlos, I am working on project right now you might be interested in, namely a extfh interface to postgresql and a
isamwrapper for libpq.  I already have an isam bridge working direct to postgresql from AcuCobol without using odbc or
acommercial driver.  I just need to convert it to extfh and do a few other things to support microfocus. 

Merlin

________________________________________
From: pgsql-odbc-owner@postgresql.org [mailto:pgsql-odbc-owner@postgresql.org] On Behalf Of Carlos Henrique Reimer
Sent: Wednesday, September 07, 2005 7:24 AM
To: pgsql-odbc@postgresql.org
Subject: [ODBC] Application bottlenecks

Hello,
 
We are using Cobol Microfocus and pgsqlODBC to access Postgresql.
 
Originally these applications only accessed Oracle databases without ODBC, only Procobol and now we´re migrating to
Postgresql and ODBC. The application logic doesn´t changed, but some applications have higher response times than the
Oracleversion. We worked on database tunning but even so, the response times are very different.  
 
I turned on logging sql statemants in the server (log_duration) and discovered that the sum of all SQL duration times
givesonly 30% of the total response time felt at the client. This gives me a suspect that the bottleneck is outside the
server. 
 
Am I in the right way?
 
How can I discover the SQL duration times at the client? Is there some tool I could use?
 
Thanks in advance!
 
Reimer 
________________________________________
Yahoo! Messenger com voz: PROMOÇÃO VOCÊ PODE LEVAR UMA VIAGEM NA CONVERSA. Participe!

Hi Merlin...

We have an application that he uses one extfh that was modified by us
so that it has access Oracle bases natively through the use of
ProCobol.  I am interested in its work, would like to get greaters
information.

We use Microfocus NetExpress 3.0.

Cleber.

2005/9/8, Merlin Moncure <merlin.moncure@rcsonline.com>:
> Hi Carlos, I am working on project right now you might be interested in, namely a extfh interface to postgresql and a
isamwrapper for libpq.  I already have an isam bridge working direct to postgresql from AcuCobol without using odbc or
acommercial driver.  I just need to convert it to extfh and do a few other things to support microfocus. 
>
> Merlin
>
> ________________________________________
> From: pgsql-odbc-owner@postgresql.org [mailto:pgsql-odbc-owner@postgresql.org] On Behalf Of Carlos Henrique Reimer
> Sent: Wednesday, September 07, 2005 7:24 AM
> To: pgsql-odbc@postgresql.org
> Subject: [ODBC] Application bottlenecks
>
> Hello,
>
> We are using Cobol Microfocus and pgsqlODBC to access Postgresql.
>
> Originally these applications only accessed Oracle databases without ODBC, only Procobol and now we´re migrating to
Postgresqland ODBC. The application logic doesn´t changed, but some applications have higher response times than the
Oracleversion. We worked on database tunning but even so, the response times are very different. 
>
> I turned on logging sql statemants in the server (log_duration) and discovered that the sum of all SQL duration times
givesonly 30% of the total response time felt at the client. This gives me a suspect that the bottleneck is outside the
server.
>
> Am I in the right way?
>
> How can I discover the SQL duration times at the client? Is there some tool I could use?
>
> Thanks in advance!
>
> Reimer
> ________________________________________
> Yahoo! Messenger com voz: PROMOÇÃO VOCÊ PODE LEVAR UMA VIAGEM NA CONVERSA. Participe!
>
> ---------------------------(end of broadcast)---------------------------
> TIP 9: In versions below 8.0, the planner will ignore your desire to
>       choose an index scan if your joining column's datatypes do not
>       match
>


--
Cleber Nardelli
IPM Automação e Consultoria
9998-8670

> Hi Merlin...
>
> We have an application that he uses one extfh that was modified by us
> so that it has access Oracle bases natively through the use of
> ProCobol.  I am interested in its work, would like to get greaters
> information.
>
> We use Microfocus NetExpress 3.0.
>
> Cleber.
>
> 2005/9/8, Merlin Moncure <merlin.moncure@rcsonline.com>:
> > Hi Carlos, I am working on project right now you might be interested
in,
> namely a extfh interface to postgresql and a isam wrapper for libpq.
I
> already have an isam bridge working direct to postgresql from AcuCobol
> without using odbc or a commercial driver.  I just need to convert it
to
> extfh and do a few other things to support microfocus.
> >
> > Merlin

I have a project open on gborg called 'postisam'.  Right now there is no
code and no information on it...but right now I am developing a COBOL
ERP which works with postgresql and AcuCobol.  The reason why there is
no public code is that the AcuCobol file interface requires re-linking
the runtime and AcuCorp does not grant redistribution rights on the key
header files required to do that.

With version 7.0 AcuCorp now supports extfh file interfaces so I will
convert my current project to support extfh.  In theory, this will allow
postisam to support any cobol compiler that supports extfh.  Over the
next couple of weeks I am going to be updating the PostISAM site with
new information and sending in the code that was been reworked with all
the AcuCorp stuff removed and made more portable.

Merlin