Ravindran G - TLS, Chennai. wrote:
Hi,
We are using PostgreSQL 7.1 cygwin installed on Windows 2000 (2 GB Memory,
P4).
I would strongly suggest moving to native 8.1 :). You will find your
life much better.
Joshua D. Drake
We understand that the maximum connections that can be set is 64 in
Postgresql 7.1 version.
The performance is very slow and some time the database is not getting
connected from our application because of this.
Please advise us on how to increase the performance by setting any
attributes in configuration files ?.
Find enclosed the configuration file.
Thanks and regards,
Ravi
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------------------------------------------------------------------------
#
# PostgreSQL configuration file
# -----------------------------
#
# This file consists of lines of the form
#
# name = value
#
# (The `=' is optional.) White space is collapsed, comments are
# introduced by `#' anywhere on a line. The complete list of option
# names and allowed values can be found in the PostgreSQL
# documentation. The commented-out settings shown in this file
# represent the default values.
# Any option can also be given as a command line switch to the
# postmaster, e.g., 'postmaster -c log_connections=on'. Some options
# can be changed at run-time with the 'SET' SQL command.
#========================================================================
#
# Connection Parameters
#
tcpip_socket = true
#ssl = false
max_connections = 64
#port = 5432
#hostname_lookup = false
#show_source_port = false
#unix_socket_directory = ''
#unix_socket_group = ''
#unix_socket_permissions = 0777
#virtual_host = ''
#krb_server_keyfile = ''
#
# Shared Memory Size
#
shared_buffers = 20000 # 2*max_connections, min 16
#max_fsm_relations = 100 # min 10, fsm is free space map
max_fsm_pages = 20000 # min 1000, fsm is free space map
#max_locks_per_transaction = 64 # min 10
#wal_buffers = 8 # min 4
#
# Non-shared Memory Sizes
#
#sort_mem = 512 # min 32
#vacuum_mem = 8192 # min 1024
#
# Write-ahead log (WAL)
#
#wal_files = 0 # range 0-64
wal_sync_method = open_sync # the default varies across platforms:
# # fsync, fdatasync, open_sync, or open_datasync
#wal_debug = 0 # range 0-16
#commit_delay = 0 # range 0-100000
#commit_siblings = 5 # range 1-1000
#checkpoint_segments = 3 # in logfile segments (16MB each), min 1
#checkpoint_timeout = 300 # in seconds, range 30-3600
#fsync = true
#
# Optimizer Parameters
#
#enable_seqscan = true
#enable_indexscan = true
#enable_tidscan = true
#enable_sort = true
#enable_nestloop = true
#enable_mergejoin = true
#enable_hashjoin = true
#ksqo = false
effective_cache_size = 5000 # default in 8k pages
#random_page_cost = 4
#cpu_tuple_cost = 0.01
#cpu_index_tuple_cost = 0.001
#cpu_operator_cost = 0.0025
#
# GEQO Optimizer Parameters
#
#geqo = true
#geqo_selection_bias = 2.0 # range 1.5-2.0
#geqo_threshold = 11
#geqo_pool_size = 0 # default based on #tables in query, range 128-1024
#geqo_effort = 1
#geqo_generations = 0
#geqo_random_seed = -1 # auto-compute seed
#
# Debug display
#
#silent_mode = false
log_connections = true
log_timestamp = true
#log_pid = false
#debug_level = 0 # range 0-16
debug_print_query = true
#debug_print_parse = false
#debug_print_rewritten = false
#debug_print_plan = false
#debug_pretty_print = false
# requires USE_ASSERT_CHECKING
#debug_assertions = true
#
# Syslog
#
# requires ENABLE_SYSLOG
#syslog = 0 # range 0-2
#syslog_facility = 'LOCAL0'
#syslog_ident = 'postgres'
#
# Statistics
#
#show_parser_stats = false
#show_planner_stats = false
#show_executor_stats = false
#show_query_stats = false
# requires BTREE_BUILD_STATS
#show_btree_build_stats = false
#
# Access statistics collection
#
#stats_start_collector = true
#stats_reset_on_server_start = true
#stats_command_string = false
#stats_row_level = false
#stats_block_level = false
#
# Lock Tracing
#
#trace_notify = false
# requires LOCK_DEBUG
#trace_locks = false
#trace_userlocks = false
#trace_lwlocks = false
#debug_deadlocks = false
#trace_lock_oidmin = 16384
#trace_lock_table = 0
#
# Misc
#
#dynamic_library_path = '$libdir'
#australian_timezones = false
#authentication_timeout = 60 # min 1, max 600
#deadlock_timeout = 1000
#default_transaction_isolation = 'read committed'
#max_expr_depth = 10000 # min 10
#max_files_per_process = 1000 # min 25
#password_encryption = false
#sql_inheritance = true
#transform_null_equals = false
------------------------------------------------------------------------
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