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非常奇怪的性能问题
F80上的INIT:
db_name = "shoe"
instance_name = shoe
service_names = shoe
# db_files = 80 # SMALL
# db_files = 400 # MEDIUM
# db_files = 1500 # LARGE
control_files = ("/u02/oradata/shoe/control01.ctl", "/u02/oradata/shoe/control02.ctl", "/u02/oradata/shoe/control03.ctl"
open_cursors = 300
max_enabled_roles = 30
# db_file_multiblock_read_count = 8 # SMALL
# db_file_multiblock_read_count = 16 # MEDIUM
# db_file_multiblock_read_count = 32 # LARGE
db_block_buffers = 26179
# db_block_buffers = 100 # SMALL
# db_block_buffers = 550 # MEDIUM
# db_block_buffers = 3200 # LARGE
#shared_pool_size = 31457280 # INITIAL
shared_pool_size = 71487488
# shared_pool_size = 3500000 # SMALL
# shared_pool_size = 5000000 # MEDIUM
# shared_pool_size = 9000000 # LARGE
large_pool_size = 614400
java_pool_size = 20971520
log_checkpoint_interval = 10000
log_checkpoint_timeout = 1800
processes = 300
# processes = 50 # SMALL
# processes = 100 # MEDIUM
# processes = 200 # LARGE
log_buffer = 163840 # INITIAL
# log_buffer = 32768 # SMALL
# log_buffer = 32768 # MEDIUM
# log_buffer = 163840 # LARGE
# audit_trail = false # if you want auditing
# timed_statistics = false # if you want timed statistics
# max_dump_file_size = 10000 # limit trace file size to 5M each
# Uncommenting the lines below will cause automatic archiving if archiving has
# been enabled using ALTER DATABASE ARCHIVELOG.
# log_archive_start = true
# log_archive_dest_1 = "location=/u01/app/oracle/admin/shoe/arch"
# log_archive_format = arch_%t_%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 )
# If using public rollback segments, define how many
# rollback segments each instance will pick up, using the formula
# # of rollback segments = transactions / transactions_per_rollback_segment
# In this example each instance will grab 40/10 = 4:
# transactions = 40
# transactions_per_rollback_segment = 10
# Global Naming -- enforce that a dblink has same name as the db it connects to
# global_names = false
# Edit and uncomment the following line to provide the suffix that will be
# appended to the db_name parameter (separated with a dot) and stored as the
# global database name when a database is created. If your site uses
# Internet Domain names for e-mail, then the part of your e-mail address after
# the '@' is a good candidate for this parameter value.
# db_domain = us.acme.com # global database name is db_name.db_domain
# 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
# define directories to store trace and alert files
background_dump_dest = /u01/app/oracle/admin/shoe/bdump
core_dump_dest = /u01/app/oracle/admin/shoe/cdump
#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 = /u01/app/oracle/admin/shoe/udump
db_block_size = 8192
remote_login_passwordfile = exclusive
os_authent_prefix = ""
# The following parameters are needed for the Advanced Replication Option
job_queue_processes = 4
job_queue_interval = 60
distributed_transactions = 10
open_links = 4
mts_dispatchers = "(PROTOCOL=TCP)(PRE=oracle.aurora.server.SGiopServer)"
# Uncomment the following line when your listener is configured for SSL
# (listener.ora and sqlnet.ora)
# mts_dispatchers = "(PROTOCOL=TCPS)(PRE=oracle.aurora.server.SGiopServer)"
compatible = "8.1.0"
sort_area_size = 65536
sort_area_retained_size = 65536
至于H80上的,就是上面写到的两个参数的改变。 |
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