Now if that really is your job profile, you 're probably a candidate for some
sort of connection pooling or multiple threading.
If, on the other hand, you 're trying to measure which straw has bigger
capacity, I think you want a test that draws a lot of data through the straw
per connection. To make the test fair for your apparent purpose, you 'll want
to check that you 've done everything you can to advise the Oracle software
and the OS that your connection is actually local (short of specifying BEQ)
for the TCP connection.
Interesting thought pattern to consider TNSPING in the context of PING to
check the data movement capacity. I wonder if Oracle could add data packet
shoving with PING-like specifications to TNSPING without creating a security
hole or destabilizing an "always works " diagnostic tool. I don 't think they
had the capacity testing aspect of PING in mind when they named the tool.
mwf
-- --Original Message-- --
From: oracle-l-bounce@(protected)
[mailto:oracle-l-bounce@(protected)]On Behalf Of Ahmed Abdel Fattah
Sent: Thursday, July 08, 2004 3:10 AM
To: oracle-l@(protected)
Subject: Perfomrance Issue When using BEQ protocol
Dear All,
I have an environment that has two databases, OFSA & ODS.
Database ODS has a database link to the OFSA database. This
database link uses a connect string called OFSA, which is defined
as follows:
OFSA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = CI-DW-PRD)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME =OFSA)
)
)
There is a batch job that run on the server and that uses the above
database link to retrieve some data from the OFSA database.
Due to performance issues on the above batch job, I suggested to implement
the BEQ protocol in the connect string that is used by the above databse
link
as long as the two databases are on the same server, and because I read some
documents that BEQ is faster than TCP/IP. So, I created another connect
string
as follows:
PROD =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = BEQ)(PROGRAM = oracle)(ARGV0 = oracleOFSA)(ARGS =
'(DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=BEQ))) ')(ENVS =
'ORACLE_SID=OFSA,ORACLE_HOME=/apps/oracle/product/8.1.7 '))
)
The I test connection using the two connect strings, using the tnsping
utility
over a period of time, and I found that using the BEQ connect string is much
slower than using the TCP/IP connect string. Following are sample test
results:
==============
Attempting to contact (ADDRESS=(PROTOCOL=TCP)(HOST=CIB-DW-PRD)(PORT=1521))
OK (10 msec)
TNS Ping Utility for Solaris: Version 8.1.7.2.0 - Production on 07-JUL-2004
17:4
5:56
(c) Copyright 1997 Oracle Corporation. All rights reserved.
Attempting to contact
(ADDRESS=(PROTOCOL=BEQ)(PROGRAM=oracle)(ARGV0=oracleOFSA)(
ARGS= '(DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=BEQ))) ')(ENVS= 'ORACLE_SID=O
FSA,
ORACLE_HOME=/apps/oracle/product/8.1.7 '))
OK (160 msec)
==============
TNS Ping Utility for Solaris: Version 8.1.7.2.0 - Production on 07-JUL-2004
17:4
6:00
(c) Copyright 1997 Oracle Corporation. All rights reserved.
Attempting to contact (ADDRESS=(PROTOCOL=TCP)(HOST=CIB-DW-PRD)(PORT=1521))
OK (10 msec)
TNS Ping Utility for Solaris: Version 8.1.7.2.0 - Production on 07-JUL-2004
17:4
6:00
(c) Copyright 1997 Oracle Corporation. All rights reserved.
Attempting to contact
(ADDRESS=(PROTOCOL=BEQ)(PROGRAM=oracle)(ARGV0=oracleOFSA)(
ARGS= '(DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=BEQ))) ')(ENVS= 'ORACLE_SID=O
FSA,
ORACLE_HOME=/apps/oracle/product/8.1.7 '))
OK (70 msec)
==============
TNS Ping Utility for Solaris: Version 8.1.7.2.0 - Production on 07-JUL-2004
17:4
6:03
(c) Copyright 1997 Oracle Corporation. All rights reserved.
Attempting to contact (ADDRESS=(PROTOCOL=TCP)(HOST=CIB-DW-PRD)(PORT=1521))
OK (10 msec)
TNS Ping Utility for Solaris: Version 8.1.7.2.0 - Production on 07-JUL-2004
17:4
6:03
(c) Copyright 1997 Oracle Corporation. All rights reserved.
Attempting to contact
(ADDRESS=(PROTOCOL=BEQ)(PROGRAM=oracle)(ARGV0=oracleOFSA)(
ARGS= '(DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=BEQ))) ')(ENVS= 'ORACLE_SID=O
FSA,
ORACLE_HOME=/apps/oracle/product/8.1.7 '))
OK (60 msec)
==============
TNS Ping Utility for Solaris: Version 8.1.7.2.0 - Production on 07-JUL-2004
17:4
6:06
(c) Copyright 1997 Oracle Corporation. All rights reserved.
Attempting to contact (ADDRESS=(PROTOCOL=TCP)(HOST=CIB-DW-PRD)(PORT=1521))
OK (10 msec)
TNS Ping Utility for Solaris: Version 8.1.7.2.0 - Production on 07-JUL-2004
17:4
6:06
(c) Copyright 1997 Oracle Corporation. All rights reserved.
Attempting to contact
(ADDRESS=(PROTOCOL=BEQ)(PROGRAM=oracle)(ARGV0=oracleOFSA)(
ARGS= '(DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=BEQ))) ')(ENVS= 'ORACLE_SID=O
FSA,
ORACLE_HOME=/apps/oracle/product/8.1.7 '))
OK (70 msec)
==============
TNS Ping Utility for Solaris: Version 8.1.7.2.0 - Production on 07-JUL-2004
17:4
6:10
(c) Copyright 1997 Oracle Corporation. All rights reserved.
Attempting to contact (ADDRESS=(PROTOCOL=TCP)(HOST=CIB-DW-PRD)(PORT=1521))
OK (0 msec)
TNS Ping Utility for Solaris: Version 8.1.7.2.0 - Production on 07-JUL-2004
17:4
6:10
(c) Copyright 1997 Oracle Corporation. All rights reserved.
Attempting to contact
(ADDRESS=(PROTOCOL=BEQ)(PROGRAM=oracle)(ARGV0=oracleOFSA)(
ARGS= '(DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=BEQ))) ')(ENVS= 'ORACLE_SID=O
FSA,
ORACLE_HOME=/apps/oracle/product/8.1.7 '))
OK (150 msec)
==============
Can someone till me if this is a normal behavior?
Is I missing some information?
Thanks & Best Regards
Ahmed
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