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Home » Performance » MySQL » Server Optimization Request, please help.
icon4.gif  Server Optimization Request, please help. [message #1552] Wed, 25 July 2007 06:52 Go to next message
kaahbonk is currently offline kaahbonk
Messages: 3
Registered: February 2007
Junior Member
Please help me optimize this server. I am pretty sure a lot could be done to improve its performance. Any help will be most appreciated Smile

Server Specs:
Quad Opteron 842+
4096MB RAM
2 x 73GB U320 SCSI Raid
FreeBSD 6.2
apache/IIS version: apache 2.2.4
PHP version: PHP Version 5.2.2
MySQL version: mysql 5.0.27


my.cnf:
skip-locking
key_buffer = 768M
max_allowed_packet = 10M
table_cache =1536
sort_buffer_size = 16M
read_buffer_size = 16M
read_rnd_buffer_size = 16M
myisam_sort_buffer_size = 512M
thread_cache_size = 64
query_cache_size = 256M
# Try number of CPU's*2 for thread_concurrency
thread_concurrency = 8
max_connections = 1000
query_cache_limit=4M
query_cache_type=1

MySQL stats:
---------------------------------+------------------------------------------------------------+
| Variable_name                   | Value                                                      |
+---------------------------------+------------------------------------------------------------+
| auto_increment_increment        | 1                                                          |
| auto_increment_offset           | 1                                                          |
| automatic_sp_privileges         | ON                                                         |
| back_log                        | 50                                                         |
| basedir                         | /usr/local/                                                |
| bdb_cache_size                  | 8388600                                                    |
| bdb_home                        | /var/db/mysql/                                             |
| bdb_log_buffer_size             | 786432                                                     |
| bdb_logdir                      |                                                            |
| bdb_max_lock                    | 10000                                                      |
| bdb_shared_data                 | OFF                                                        |
| bdb_tmpdir                      | /var/tmp/                                                  |
| binlog_cache_size               | 32768                                                      |
| bulk_insert_buffer_size         | 8388608                                                    |
| character_set_client            | latin1                                                     |
| character_set_connection        | latin1                                                     |
| character_set_database          | latin1                                                     |
| character_set_filesystem        | binary                                                     |
| character_set_results           | latin1                                                     |
| character_set_server            | latin1                                                     |
| character_set_system            | utf8                                                       |
| character_sets_dir              | /usr/local/share/mysql/charsets/                           |
| collation_connection            | latin1_swedish_ci                                          |
| collation_database              | latin1_swedish_ci                                          |
| collation_server                | latin1_swedish_ci                                          |
| completion_type                 | 0                                                          |
| concurrent_insert               | 1                                                          |
| connect_timeout                 | 5                                                          |
| datadir                         | /var/db/mysql/                                             |
| date_format                     | %Y-%m-%d                                                   |
| datetime_format                 | %Y-%m-%d %H:%i:%s                                          |
| default_week_format             | 0                                                          |
| delay_key_write                 | ON                                                         |
| delayed_insert_limit            | 100                                                        |
| delayed_insert_timeout          | 300                                                        |
| delayed_queue_size              | 1000                                                       |
| div_precision_increment         | 4                                                          |
| engine_condition_pushdown       | OFF                                                        |
| expire_logs_days                | 0                                                          |
| flush                           | OFF                                                        |
| flush_time                      | 0                                                          |
| ft_boolean_syntax               | + -><()~*:""&|                                             |
| ft_max_word_len                 | 84                                                         |
| ft_min_word_len                 | 4                                                          |
| ft_query_expansion_limit        | 20                                                         |
| ft_stopword_file                | (built-in)                                                 |
| group_concat_max_len            | 1024                                                       |
| have_archive                    | NO                                                         |
| have_bdb                        | YES                                                        |
| have_blackhole_engine           | NO                                                         |
| have_compress                   | YES                                                        |
| have_crypt                      | YES                                                        |
| have_csv                        | NO                                                         |
| have_dynamic_loading            | YES                                                        |
| have_example_engine             | NO                                                         |
| have_federated_engine           | NO                                                         |
| have_geometry                   | YES                                                        |
| have_innodb                     | YES                                                        |
| have_isam                       | NO                                                         |
| have_merge_engine               | YES                                                        |
| have_ndbcluster                 | NO                                                         |
| have_openssl                    | NO                                                         |
| have_query_cache                | YES                                                        |
| have_raid                       | NO                                                         |
| have_rtree_keys                 | YES                                                        |
| have_symlink                    | YES                                                        |
| init_connect                    |                                                            |
| init_file                       |                                                            |
| init_slave                      |                                                            |
| innodb_additional_mem_pool_size | 1048576                                                    |
| innodb_autoextend_increment     | 8                                                          |
| innodb_buffer_pool_awe_mem_mb   | 0                                                          |
| innodb_buffer_pool_size         | 8388608                                                    |
| innodb_checksums                | ON                                                         |
| innodb_commit_concurrency       | 0                                                          |
| innodb_concurrency_tickets      | 500                                                        |
| innodb_data_file_path           | ibdata1:10M:autoextend                                     |
| innodb_data_home_dir            |                                                            |
| innodb_doublewrite              | ON                                                         |
| innodb_fast_shutdown            | 1                                                          |
| innodb_file_io_threads          | 4                                                          |
| innodb_file_per_table           | OFF                                                        |
| innodb_flush_log_at_trx_commit  | 1                                                          |
| innodb_flush_method             |                                                            |
| innodb_force_recovery           | 0                                                          |
| innodb_lock_wait_timeout        | 50                                                         |
| innodb_locks_unsafe_for_binlog  | OFF                                                        |
| innodb_log_arch_dir             |                                                            |
| innodb_log_archive              | OFF                                                        |
| innodb_log_buffer_size          | 1048576                                                    |
| innodb_log_file_size            | 5242880                                                    |
| innodb_log_files_in_group       | 2                                                          |
| innodb_log_group_home_dir       | ./                                                         |
| innodb_max_dirty_pages_pct      | 90                                                         |
| innodb_max_purge_lag            | 0                                                          |
| innodb_mirrored_log_groups      | 1                                                          |
| innodb_open_files               | 300                                                        |
| innodb_support_xa               | ON                                                         |
| innodb_sync_spin_loops          | 20                                                         |
| innodb_table_locks              | ON                                                         |
| innodb_thread_concurrency       | 8                                                          |
| innodb_thread_sleep_delay       | 10000                                                      |
| interactive_timeout             | 28800                                                      |
| join_buffer_size                | 131072                                                     |
| key_buffer_size                 | 805306368                                                  |
| key_cache_age_threshold         | 300                                                        |
| key_cache_block_size            | 1024                                                       |
| key_cache_division_limit        | 100                                                        |
| language                        | /usr/local/share/mysql/english/                            |
| large_files_support             | ON                                                         |
| large_page_size                 | 0                                                          |
| large_pages                     | OFF                                                        |
| lc_time_names                   | en_US                                                      |
| license                         | GPL                                                        |
| local_infile                    | ON                                                         |
| locked_in_memory                | OFF                                                        |
| log                             | OFF                                                        |
| log_bin                         | ON                                                         |
| log_bin_trust_function_creators | OFF                                                        |
| log_error                       |                                                            |
| log_queries_not_using_indexes   | OFF                                                        |
| log_slave_updates               | OFF                                                        |
| log_slow_queries                | ON                                                         |
| log_warnings                    | 2                                                          |
| long_query_time                 | 15                                                         |
| low_priority_updates            | OFF                                                        |
| lower_case_file_system          | OFF                                                        |
| lower_case_table_names          | 0                                                          |
| max_allowed_packet              | 10484736                                                   |
| max_binlog_cache_size           | 4294967295                                                 |
| max_binlog_size                 | 1073741824                                                 |
| max_connect_errors              | 10000                                                      |
| max_connections                 | 1000                                                       |
| max_delayed_threads             | 20                                                         |
| max_error_count                 | 64                                                         |
| max_heap_table_size             | 16777216                                                   |
| max_insert_delayed_threads      | 20                                                         |
| max_join_size                   | 4294967295                                                 |
| max_length_for_sort_data        | 1024                                                       |
| max_prepared_stmt_count         | 16382                                                      |
| max_relay_log_size              | 0                                                          |
| max_seeks_for_key               | 4294967295                                                 |
| max_sort_length                 | 1024                                                       |
| max_sp_recursion_depth          | 0                                                          |
| max_tmp_tables                  | 32                                                         |
| max_user_connections            | 0                                                          |
| max_write_lock_count            | 4294967295                                                 |
| multi_range_count               | 256                                                        |
| myisam_data_pointer_size        | 6                                                          |
| myisam_max_sort_file_size       | 2147483647                                                 |
| myisam_recover_options          | OFF                                                        |
| myisam_repair_threads           | 1                                                          |
| myisam_sort_buffer_size         | 536870912                                                  |
| myisam_stats_method             | nulls_unequal                                              |
| net_buffer_length               | 16384                                                      |
| net_read_timeout                | 30                                                         |
| net_retry_count                 | 1000000                                                    |
| net_write_timeout               | 60                                                         |
| new                             | OFF                                                        |
| old_passwords                   | OFF                                                        |
| open_files_limit                | 11095                                                      |
| optimizer_prune_level           | 1                                                          |
| optimizer_search_depth          | 62                                                         |
| pid_file                        | /var/db/mysql/databas.wcmprem.com.pid                      |
| port                            | 3306                                                       |
| preload_buffer_size             | 32768                                                      |
| prepared_stmt_count             | 0                                                          |
| protocol_version                | 10                                                         |
| query_alloc_block_size          | 8192                                                       |
| query_cache_limit               | 4194304                                                    |
| query_cache_min_res_unit        | 4096                                                       |
| query_cache_size                | 268435456                                                  |
| query_cache_type                | ON                                                         |
| query_cache_wlock_invalidate    | OFF                                                        |
| query_prealloc_size             | 8192                                                       |
| range_alloc_block_size          | 2048                                                       |
| read_buffer_size                | 16773120                                                   |
| read_only                       | OFF                                                        |
| read_rnd_buffer_size            | 16773120                                                   |
| relay_log_purge                 | ON                                                         |
| relay_log_space_limit           | 0                                                          |
| rpl_recovery_rank               | 0                                                          |
| secure_auth                     | OFF                                                        |
| server_id                       | 1                                                          |
| skip_external_locking           | ON                                                         |
| skip_networking                 | OFF                                                        |
| skip_show_database              | OFF                                                        |
| slave_compressed_protocol       | OFF                                                        |
| slave_load_tmpdir               | /var/tmp/                                                  |
| slave_net_timeout               | 3600                                                       |
| slave_skip_errors               | OFF                                                        |
| slave_transaction_retries       | 10                                                         |
| slow_launch_time                | 2                                                          |
| socket                          | /tmp/mysql.sock                                            |
| sort_buffer_size                | 16777208                                                   |
| sql_big_selects                 | ON                                                         |
| sql_mode                        |                                                            |
| sql_notes                       | ON                                                         |
| sql_warnings                    | OFF                                                        |
| ssl_ca                          |                                                            |
| ssl_capath                      |                                                            |
| ssl_cert                        |                                                            |
| ssl_cipher                      |                                                            |
| ssl_key                         |                                                            |
| storage_engine                  | MyISAM                                                     |
| sync_binlog                     | 0                                                          |
| sync_frm                        | ON                                                         |
| system_time_zone                | CEST                                                       |
| table_cache                     | 1536                                                       |
| table_lock_wait_timeout         | 50                                                         |
| table_type                      | MyISAM                                                     |
| thread_cache_size               | 64                                                         |
| thread_stack                    | 196608                                                     |
| time_format                     | %H:%i:%s                                                   |
| time_zone                       | SYSTEM                                                     |
| timed_mutexes                   | OFF                                                        |
| tmp_table_size                  | 33554432                                                   |
| tmpdir                          | /var/tmp/                                                  |
| transaction_alloc_block_size    | 8192                                                       |
| transaction_prealloc_size       | 4096                                                       |
| tx_isolation                    | REPEATABLE-READ                                            |
| updatable_views_with_limit      | YES                                                        |
| version                         | 5.0.27-log                                                 |
| version_bdb                     | Sleepycat Software: Berkeley DB 4.1.24: (October 21, 2006) |
| version_comment                 | FreeBSD port: mysql-server-5.0.27                          |
| version_compile_machine         | i386                                                       |
| version_compile_os              | portbld-freebsd6.1                                         |
| wait_timeout                    | 28800                                                      |
+---------------------------------+------------------------------------------------------------+
+-----------------------------------+------------+
| Variable_name                     | Value      |
+-----------------------------------+------------+
| Aborted_clients                   | 80         |
| Aborted_connects                  | 13         |
| Binlog_cache_disk_use             | 0          |
| Binlog_cache_use                  | 29115      |
| Bytes_received                    | 58300033   |
| Bytes_sent                        | 301428993  |
| Com_admin_commands                | 30         |
| Com_alter_db                      | 0          |
| Com_alter_table                   | 0          |
| Com_analyze                       | 0          |
| Com_backup_table                  | 0          |
| Com_begin                         | 0          |
| Com_change_db                     | 405        |
| Com_change_master                 | 0          |
| Com_check                         | 0          |
| Com_checksum                      | 0          |
| Com_commit                        | 0          |
| Com_create_db                     | 0          |
| Com_create_function               | 0          |
| Com_create_index                  | 0          |
| Com_create_table                  | 0          |
| Com_dealloc_sql                   | 0          |
| Com_delete                        | 5562       |
| Com_delete_multi                  | 0          |
| Com_do                            | 0          |
| Com_drop_db                       | 0          |
| Com_drop_function                 | 0          |
| Com_drop_index                    | 0          |
| Com_drop_table                    | 0          |
| Com_drop_user                     | 0          |
| Com_execute_sql                   | 0          |
| Com_flush                         | 0          |
| Com_grant                         | 0          |
| Com_ha_close                      | 0          |
| Com_ha_open                       | 0          |
| Com_ha_read                       | 0          |
| Com_help                          | 0          |
| Com_insert                        | 16661      |
| Com_insert_select                 | 0          |
| Com_kill                          | 0          |
| Com_load                          | 0          |
| Com_load_master_data              | 0          |
| Com_load_master_table             | 0          |
| Com_lock_tables                   | 0          |
| Com_optimize                      | 0          |
| Com_preload_keys                  | 0          |
| Com_prepare_sql                   | 0          |
| Com_purge                         | 0          |
| Com_purge_before_date             | 0          |
| Com_rename_table                  | 0          |
| Com_repair                        | 0          |
| Com_replace                       | 19         |
| Com_replace_select                | 0          |
| Com_reset                         | 0          |
| Com_restore_table                 | 0          |
| Com_revoke                        | 0          |
| Com_revoke_all                    | 0          |
| Com_rollback                      | 0          |
| Com_savepoint                     | 0          |
| Com_select                        | 115389     |
| Com_set_option                    | 43         |
| Com_show_binlog_events            | 0          |
| Com_show_binlogs                  | 1          |
| Com_show_charsets                 | 3          |
| Com_show_collations               | 3          |
| Com_show_column_types             | 0          |
| Com_show_create_db                | 0          |
| Com_show_create_table             | 0          |
| Com_show_databases                | 3          |
| Com_show_errors                   | 0          |
| Com_show_fields                   | 0          |
| Com_show_grants                   | 1          |
| Com_show_innodb_status            | 0          |
| Com_show_keys                     | 0          |
| Com_show_logs                     | 0          |
| Com_show_master_status            | 0          |
| Com_show_ndb_status               | 0          |
| Com_show_new_master               | 0          |
| Com_show_open_tables              | 0          |
| Com_show_privileges               | 0          |
| Com_show_processlist              | 0          |
| Com_show_slave_hosts              | 30         |
| Com_show_slave_status             | 0          |
| Com_show_status                   | 7          |
| Com_show_storage_engines          | 0          |
| Com_show_tables                   | 12         |
| Com_show_triggers                 | 0          |
| Com_show_variables                | 43         |
| Com_show_warnings                 | 0          |
| Com_slave_start                   | 0          |
| Com_slave_stop                    | 0          |
| Com_stmt_close                    | 0          |
| Com_stmt_execute                  | 0          |
| Com_stmt_fetch                    | 0          |
| Com_stmt_prepare                  | 0          |
| Com_stmt_reset                    | 0          |
| Com_stmt_send_long_data           | 0          |
| Com_truncate                      | 3          |
| Com_unlock_tables                 | 0          |
| Com_update                        | 40054      |
| Com_update_multi                  | 0          |
| Com_xa_commit                     | 0          |
| Com_xa_end                        | 0          |
| Com_xa_prepare                    | 0          |
| Com_xa_recover                    | 0          |
| Com_xa_rollback                   | 0          |
| Com_xa_start                      | 0          |
| Compression                       | OFF        |
| Connections                       | 233456     |
| Created_tmp_disk_tables           | 1266       |
| Created_tmp_files                 | 13         |
| Created_tmp_tables                | 2079       |
| Delayed_errors                    | 0          |
| Delayed_insert_threads            | 0          |
| Delayed_writes                    | 0          |
| Flush_commands                    | 1          |
| Handler_commit                    | 58230      |
| Handler_delete                    | 103        |
| Handler_discover                  | 0          |
| Handler_prepare                   | 58230      |
| Handler_read_first                | 12412      |
| Handler_read_key                  | 42935537   |
| Handler_read_next                 | 273099367  |
| Handler_read_prev                 | 77         |
| Handler_read_rnd                  | 1333194    |
| Handler_read_rnd_next             | 117571738  |
| Handler_rollback                  | 0          |
| Handler_savepoint                 | 0          |
| Handler_savepoint_rollback        | 0          |
| Handler_update                    | 675414     |
| Handler_write                     | 1079186    |
| Innodb_buffer_pool_pages_data     | 491        |
| Innodb_buffer_pool_pages_dirty    | 11         |
| Innodb_buffer_pool_pages_flushed  | 17015      |
| Innodb_buffer_pool_pages_free     | 0          |
| Innodb_buffer_pool_pages_latched  | 13         |
| Innodb_buffer_pool_pages_misc     | 20         |
| Innodb_buffer_pool_pages_total    | 512        |
| Innodb_buffer_pool_read_ahead_rnd | 29078      |
| Innodb_buffer_pool_read_ahead_seq | 42605      |
| Innodb_buffer_pool_read_requests  | 775770445  |
| Innodb_buffer_pool_reads          | 7306943    |
| Innodb_buffer_pool_wait_free      | 0          |
| Innodb_buffer_pool_write_requests | 193413     |
| Innodb_data_fsyncs                | 49863      |
| Innodb_data_pending_fsyncs        | 0          |
| Innodb_data_pending_reads         | 0          |
| Innodb_data_pending_writes        | 0          |
| Innodb_data_read                  | 1111085056 |
| Innodb_data_reads                 | 7487542    |
| Innodb_data_writes                | 62401      |
| Innodb_data_written               | 595682816  |
| Innodb_dblwr_pages_written        | 17015      |
| Innodb_dblwr_writes               | 852        |
| Innodb_log_waits                  | 0          |
| Innodb_log_write_requests         | 26736      |
| Innodb_log_writes                 | 47982      |
| Innodb_os_log_fsyncs              | 48185      |
| Innodb_os_log_pending_fsyncs      | 0          |
| Innodb_os_log_pending_writes      | 0          |
| Innodb_os_log_written             | 38043648   |
| Innodb_page_size                  | 16384      |
| Innodb_pages_created              | 407        |
| Innodb_pages_read                 | 7932003    |
| Innodb_pages_written              | 17015      |
| Innodb_row_lock_current_waits     | 0          |
| Innodb_row_lock_time              | 5853       |
| Innodb_row_lock_time_avg          | 7          |
| Innodb_row_lock_time_max          | 75         |
| Innodb_row_lock_waits             | 768        |
| Innodb_rows_deleted               | 813        |
| Innodb_rows_inserted              | 800        |
| Innodb_rows_read                  | 270720967  |
| Innodb_rows_updated               | 22619      |
| Key_blocks_not_flushed            | 2          |
| Key_blocks_unused                 | 657947     |
| Key_blocks_used                   | 39873      |
| Key_read_requests                 | 33252925   |
| Key_reads                         | 40644      |
| Key_write_requests                | 77752      |
| Key_writes                        | 15515      |
| Last_query_cost                   | 0.000000   |
| Max_used_connections              | 176        |
| Not_flushed_delayed_rows          | 0          |
| Open_files                        | 456        |
| Open_streams                      | 0          |
| Open_tables                       | 424        |
| Opened_tables                     | 438        |
| Qcache_free_blocks                | 3847       |
| Qcache_free_memory                | 252542352  |
| Qcache_hits                       | 341345     |
| Qcache_inserts                    | 89561      |
| Qcache_lowmem_prunes              | 0          |
| Qcache_not_cached                 | 25895      |
| Qcache_queries_in_cache           | 10025      |
| Qcache_total_blocks               | 24064      |
| Questions                         | 753954     |
| Rpl_status                        | NULL       |
| Select_full_join                  | 56         |
| Select_full_range_join            | 0          |
| Select_range                      | 13250      |
| Select_range_check                | 0          |
| Select_scan                       | 18888      |
| Slave_open_temp_tables            | 0          |
| Slave_retried_transactions        | 0          |
| Slave_running                     | OFF        |
| Slow_launch_threads               | 0          |
| Slow_queries                      | 373        |
| Sort_merge_passes                 | 4          |
| Sort_range                        | 12783      |
| Sort_rows                         | 10790387   |
| Sort_scan                         | 5819       |
| Table_locks_immediate             | 241827     |
| Table_locks_waited                | 396        |
| Tc_log_max_pages_used             | 0          |
| Tc_log_page_size                  | 0          |
| Tc_log_page_waits                 | 0          |
| Threads_cached                    | 23         |
| Threads_connected                 | 76         |
| Threads_created                   | 184        |
| Threads_running                   | 27         |
| Uptime                            | 1804       |
+-----------------------------------+------------+
Uptime: 1804  Threads: 76  Questions: 753955  Slow queries: 373  Opens: 438  Flush tables: 1  Open tables: 424  Queries per second avg: 417.935
mysqladmin  Ver 8.41 Distrib 5.0.27, for portbld-freebsd6.1 on i386
Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
This software comes with ABSOLUTELY NO WARRANTY. This is free software,
and you are welcome to modify and redistribute it under the GPL license

Server version        5.0.27-log
Protocol version    10
Connection        Localhost via UNIX socket
UNIX socket        /tmp/mysql.sock
Uptime:            30 min 4 sec

Threads: 76  Questions: 753955  Slow queries: 373  Opens: 438  Flush tables: 1  Open tables: 424  Queries per second avg: 417.935
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Re: Server Optimization Request, please help. [message #1614 is a reply to message #1552 ] Thu, 16 August 2007 10:48 Go to previous messageGo to next message
Peter is currently offline Peter
Messages: 405
Registered: August 2006
Senior Member
Super Guru
you're actively using Innodb but you have not set any Innodb settings.

Plus your local buffers (sort_buffer, read_buffer, read_rnd_buffer) may be too large.

Peter Zaitsev, MySQL Performance Expert
MySQL Performance Blog - http://www.mysqlperformanceblog.com
MySQL Consulting http://www.mysqlperformanceblog.com/mysql-consulting/
Report message to a moderator
Re: Server Optimization Request, please help. [message #1769 is a reply to message #1552 ] Sun, 09 September 2007 00:23 Go to previous messageGo to next message
allworknoplay is currently offline allworknoplay
Messages: 58
Registered: September 2007
Location: New York
Member
Peter is right, you only have a 4GIG server.

Your buffers are massive..

sort_buffer_size = 16M
read_buffer_size = 16M
read_rnd_buffer_size = 16M

Assuming that you have dedicated this box entirely
for MySQL they should be around:

sort_buffer_size = 4M
read_buffer_size = 4M
read_rnd_buffer_size = 4M
Report message to a moderator
Re: Server Optimization Request, please help. [message #1776 is a reply to message #1552 ] Mon, 10 September 2007 02:45 Go to previous messageGo to next message
kaahbonk is currently offline kaahbonk
Messages: 3
Registered: February 2007
Junior Member
Thanks, yes the box is dedicated for MySQL.
I just recently upgraded to 8GB. Should the buffers double up too?
Report message to a moderator
Re: Server Optimization Request, please help. [message #1780 is a reply to message #1776 ] Mon, 10 September 2007 09:51 Go to previous message
allworknoplay is currently offline allworknoplay
Messages: 58
Registered: September 2007
Location: New York
Member
kaahbonk wrote on Mon, 10 September 2007 02:45

Thanks, yes the box is dedicated for MySQL.
I just recently upgraded to 8GB. Should the buffers double up too?



You could probably safely double them, I guess it also depends
on what else you have done to up the ante since you've upgraded to 8GIG...
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