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Performance Problem
We have Two databases which resides on two diff systems and the configuartion of the systems are:
1St System:
Xeon(TM) CPU :3 GHZ
TOTAL RAM:2GB
AVAILABLE RAM:34382
Total System Global Area 1180854300 bytes
Fixed Size 75804 bytes
Variable Size 310693888 bytes
Database Buffers 870006784 bytes
Redo Buffers 77824 bytes
2nd System:
Xeon(TM) :3GHz
Total RAM:1gb
Available RAM:228040
Total System Global Area 1180575772 bytes
Fixed Size 75804 bytes
Variable Size 310415360 bytes
Database Buffers 870006784 bytes
Redo Buffers 77824 bytes
Copyright (c) 1991, 2000 by Oracle Corporation
#
##############################################################################
# Example INIT.ORA file
#
# This file is provided by Oracle Corporation to help you customize
# your RDBMS installation for your site. Important system parameters
# are discussed, and example settings given.
#
# Some parameter settings are generic to any size installation.
# For parameters that require different values in different size
# installations, three scenarios have been provided: SMALL, MEDIUM
# and LARGE. Any parameter that needs to be tuned according to
# installation size will have three settings, each one commented
# according to installation size.
#
# Use the following table to approximate the SGA size needed for the
# three scenarious provided in this file:
#
# -------Installation/Database Size------
# SMALL MEDIUM LARGE
# Block 2K 4500K 6800K 17000K
# Size 4K 5500K 8800K 21000K
#
# To set up a database that multiple instances will be using, place
# all instance-specific parameters in one file, and then have all
# of these files point to a master file using the IFILE command.
# This way, when you change a public
# parameter, it will automatically change on all instances. This is
# necessary, since all instances must run with the same value for many
# parameters. For example, if you choose to use private rollback segments,
# these must be specified in different files, but since all gc_*
# parameters must be the same on all instances, they should be in one file.
#
# INSTRUCTIONS: Edit this file and the other INIT files it calls for
# your site, either by using the values provided here or by providing
# your own. Then place an IFILE= line into each instance-specific
# INIT file that points at this file.
#
# NOTE: Parameter values suggested in this file are based on conservative
# estimates for computer memory availability. You should adjust values upward
# for modern machines.
#
###############################################################################
db_name = "JMMS"
instance_name = JMMS
service_names = JMMS
db_files = 1024
control_files = ("G:\oracle\oradata\JMMS\control01.ctl", "G:\oracle\oradata\JMMS\control02.ctl", "G:\oracle\oradata\JMMS\control03.ctl")
open_cursors = 300
max_enabled_roles = 30
db_file_multiblock_read_count = 8
#db_block_buffers = 200340
db_block_buffers = 106202
#shared_pool_size = 154706380
#shared_pool_size = 290003763
shared_pool_size = 145001881
large_pool_size = 614400
java_pool_size = 0
log_checkpoint_interval = 10000
log_checkpoint_timeout = 1800
processes = 250
parallel_max_servers = 5
#log_buffer = 327680
log_buffer = 32768
#audit_trail = true # if you want auditing
#timed_statistics = true # if you want timed statistics
max_dump_file_size = 10240 # limit trace file size to 5M each
# Uncommenting the line below will cause automatic archiving if archiving has
# been enabled using ALTER DATABASE ARCHIVELOG.
# log_archive_start = true
# log_archive_dest_1 = "location=E:\oracle\oradata\JMMS\archive"
# log_archive_format = %%ORACLE_SID%%T%TS%S.ARC
# If using private rollback segments, place lines of the following
# form in each of your instance-specific init.ora files:
#rollback_segments = ( RBS0, RBS1, RBS2, RBS3, RBS4, RBS5, RBS6 )
# Global Naming -- enforce that a dblink has same name as the db it connects to
global_names = true
# Uncomment the following line if you wish to enable the Oracle Trace product
# to trace server activity. This enables scheduling of server collections
# from the Oracle Enterprise Manager Console.
# Also, if the oracle_trace_collection_name parameter is non-null,
# every session will write to the named collection, as well as enabling you
# to schedule future collections from the console.
# oracle_trace_enable = true
oracle_trace_collection_name = ""
# define directories to store trace and alert files
background_dump_dest = G:\oracle\admin\JMMS\bdump
#Uncomment this parameter to enable resource management for your database.
#The SYSTEM_PLAN is provided by default with the database.
#Change the plan name if you have created your own resource plan.# resource_manager_plan = system_plan
user_dump_dest = G:\oracle\admin\JMMS\udump
db_block_size = 8192
remote_login_passwordfile = exclusive
os_authent_prefix = ""
distributed_transactions = 10
compatible = 8.1.0
sort_area_size = 65536
sort_area_retained_size = 65536
and the following are the parameters that i set for the First System Init.ora file
#
# Copyright (c) 1991, 2000 by Oracle Corporation
#
##############################################################################
# Example INIT.ORA file
#
# This file is provided by Oracle Corporation to help you customize
# your RDBMS installation for your site. Important system parameters
# are discussed, and example settings given.
#
# Some parameter settings are generic to any size installation.
# For parameters that require different values in different size
# installations, three scenarios have been provided: SMALL, MEDIUM
# and LARGE. Any parameter that needs to be tuned according to
# installation size will have three settings, each one commented
# according to installation size.
#
# Use the following table to approximate the SGA size needed for the
# three scenarious provided in this file:
#
# -------Installation/Database Size------
# SMALL MEDIUM LARGE
# Block 2K 4500K 6800K 17000K
# Size 4K 5500K 8800K 21000K
#
# To set up a database that multiple instances will be using, place
# all instance-specific parameters in one file, and then have all
# of these files point to a master file using the IFILE command.
# This way, when you change a public
# parameter, it will automatically change on all instances. This is
# necessary, since all instances must run with the same value for many
# parameters. For example, if you choose to use private rollback segments,
# these must be specified in different files, but since all gc_*
# parameters must be the same on all instances, they should be in one file.
#
# INSTRUCTIONS: Edit this file and the other INIT files it calls for
# your site, either by using the values provided here or by providing
# your own. Then place an IFILE= line into each instance-specific
# INIT file that points at this file.
#
# NOTE: Parameter values suggested in this file are based on conservative
# estimates for computer memory availability. You should adjust values upward
# for modern machines.
#
###############################################################################
db_name = "MTFDB"
instance_name = MTFDB
service_names = MTFDB
#db_files = 1024
db_files = 25
control_files = ("F:\oracle\oradata\MTFDB\control01.ctl", "F:\oracle\oradata\MTFDB\control02.ctl", "F:\oracle\oradata\MTFDB\control03.ctl")
open_cursors = 300
max_enabled_roles = 30
db_file_multiblock_read_count = 8
db_block_buffers = 106202
shared_pool_size = 290003763
large_pool_size = 614400
java_pool_size = 0
log_checkpoint_interval = 10000
log_checkpoint_timeout = 1800
processes = 350
parallel_max_servers = 5
log_buffer = 32768
#audit_trail = true # if you want auditing
#timed_statistics = true # if you want timed statistics
max_dump_file_size = 10240 # limit trace file size to 5M each
# Uncommenting the line below will cause automatic archiving if archiving has
# been enabled using ALTER DATABASE ARCHIVELOG.
# log_archive_start = true
# log_archive_dest_1 = "location=E:\oracle\oradata\MTFDB\archive"
# log_archive_format = %%ORACLE_SID%%T%TS%S.ARC
# If using private rollback segments, place lines of the following
# form in each of your instance-specific init.ora files:
#rollback_segments = ( RBS0, RBS1, RBS2, RBS3, RBS4, RBS5, RBS6, RBS7, RBS8, RBS9, RBS10, RBS11 )
# Global Naming -- enforce that a dblink has same name as the db it connects to
# global_names = true
# Uncomment the following line if you wish to enable the Oracle Trace product
# to trace server activity. This enables scheduling of server collections
# from the Oracle Enterprise Manager Console.
# Also, if the oracle_trace_collection_name parameter is non-null,
# every session will write to the named collection, as well as enabling you
# to schedule future collections from the console.
# oracle_trace_enable = true
oracle_trace_collection_name = ""
# define directories to store trace and alert files
background_dump_dest = F:\oracle\admin\MTFDB\bdump
#Uncomment this parameter to enable resource management for your database.
#The SYSTEM_PLAN is provided by default with the database.
#Change the plan name if you have created your own resource plan.# resource_manager_plan = system_plan
user_dump_dest = F:\oracle\admin\MTFDB\udump
db_block_size = 8192
remote_login_passwordfile = exclusive
os_authent_prefix = ""
distributed_transactions = 10
compatible = 8.1.0
sort_area_size = 65536
sort_area_retained_size = 65536
utl_file_dir = *
pls suggest me some steps to shoot up the performance of the Second system database when compared to the First System database
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Hi,
It could be helpful to understand if you post more details about your issue. BTW U can use stats pack to get an idea about your system like load etc.
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Sort area size 64K.. What is the value of "sorts (disk)" from V$sysstat
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Performnace Problem
The following are the parameters that we set for the Sort.
sorts (memory) 64 25009
sorts (disk) 64
263
sorts (rows) 64 15456674
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