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This patch changes the following defaults:

max_dirty_pages_pct: default from 90 to 75. max allowed from 100 to 99
additional_mem_pool_size: default from 1 to 8 MB
buffer_pool_size: default from 8 to 128 MB
log_buffer_size: default from 1 to 8 MB
read_io_threads/write_io_threads: default from 1 to 4

The log file sizes are untouched because of upgrade issues

Reviewed by: Heikki
This commit is contained in:
inaam
2009-06-11 12:15:41 +00:00
parent 66d6887d53
commit 5dbf1ce63f
3 changed files with 8 additions and 8 deletions
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12
handler/ha_innodb.cc
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@ -9620,7 +9620,7 @@ static MYSQL_SYSVAR_STR(log_group_home_dir, innobase_log_group_home_dir,
static MYSQL_SYSVAR_ULONG(max_dirty_pages_pct, srv_max_buf_pool_modified_pct, static MYSQL_SYSVAR_ULONG(max_dirty_pages_pct, srv_max_buf_pool_modified_pct,
PLUGIN_VAR_RQCMDARG, PLUGIN_VAR_RQCMDARG,
"Percentage of dirty pages allowed in bufferpool.", "Percentage of dirty pages allowed in bufferpool.",
NULL, NULL, 90, 0, 100, 0); NULL, NULL, 75, 0, 99, 0);
static MYSQL_SYSVAR_ULONG(max_purge_lag, srv_max_purge_lag, static MYSQL_SYSVAR_ULONG(max_purge_lag, srv_max_purge_lag,
PLUGIN_VAR_RQCMDARG, PLUGIN_VAR_RQCMDARG,
@ -9662,7 +9662,7 @@ static MYSQL_SYSVAR_ULONG(replication_delay, srv_replication_delay,
static MYSQL_SYSVAR_LONG(additional_mem_pool_size, innobase_additional_mem_pool_size, static MYSQL_SYSVAR_LONG(additional_mem_pool_size, innobase_additional_mem_pool_size,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY, PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"Size of a memory pool InnoDB uses to store data dictionary information and other internal data structures.", "Size of a memory pool InnoDB uses to store data dictionary information and other internal data structures.",
NULL, NULL, 1*1024*1024L, 512*1024L, LONG_MAX, 1024); NULL, NULL, 8*1024*1024L, 512*1024L, LONG_MAX, 1024);
static MYSQL_SYSVAR_ULONG(autoextend_increment, srv_auto_extend_increment, static MYSQL_SYSVAR_ULONG(autoextend_increment, srv_auto_extend_increment,
PLUGIN_VAR_RQCMDARG, PLUGIN_VAR_RQCMDARG,
@ -9672,7 +9672,7 @@ static MYSQL_SYSVAR_ULONG(autoextend_increment, srv_auto_extend_increment,
static MYSQL_SYSVAR_LONGLONG(buffer_pool_size, innobase_buffer_pool_size, static MYSQL_SYSVAR_LONGLONG(buffer_pool_size, innobase_buffer_pool_size,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY, PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"The size of the memory buffer InnoDB uses to cache data and indexes of its tables.", "The size of the memory buffer InnoDB uses to cache data and indexes of its tables.",
NULL, NULL, 8*1024*1024L, 5*1024*1024L, LONGLONG_MAX, 1024*1024L); NULL, NULL, 128*1024*1024L, 5*1024*1024L, LONGLONG_MAX, 1024*1024L);
static MYSQL_SYSVAR_ULONG(commit_concurrency, innobase_commit_concurrency, static MYSQL_SYSVAR_ULONG(commit_concurrency, innobase_commit_concurrency,
PLUGIN_VAR_RQCMDARG, PLUGIN_VAR_RQCMDARG,
@ -9692,12 +9692,12 @@ static MYSQL_SYSVAR_LONG(file_io_threads, innobase_file_io_threads,
static MYSQL_SYSVAR_ULONG(read_io_threads, innobase_read_io_threads, static MYSQL_SYSVAR_ULONG(read_io_threads, innobase_read_io_threads,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY, PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"Number of background read I/O threads in InnoDB.", "Number of background read I/O threads in InnoDB.",
NULL, NULL, 1, 1, 64, 0); NULL, NULL, 4, 1, 64, 0);
static MYSQL_SYSVAR_ULONG(write_io_threads, innobase_write_io_threads, static MYSQL_SYSVAR_ULONG(write_io_threads, innobase_write_io_threads,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY, PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"Number of background write I/O threads in InnoDB.", "Number of background write I/O threads in InnoDB.",
NULL, NULL, 1, 1, 64, 0); NULL, NULL, 4, 1, 64, 0);
static MYSQL_SYSVAR_LONG(force_recovery, innobase_force_recovery, static MYSQL_SYSVAR_LONG(force_recovery, innobase_force_recovery,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY, PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
@ -9707,7 +9707,7 @@ static MYSQL_SYSVAR_LONG(force_recovery, innobase_force_recovery,
static MYSQL_SYSVAR_LONG(log_buffer_size, innobase_log_buffer_size, static MYSQL_SYSVAR_LONG(log_buffer_size, innobase_log_buffer_size,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY, PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"The size of the buffer which InnoDB uses to write log to the log files on disk.", "The size of the buffer which InnoDB uses to write log to the log files on disk.",
NULL, NULL, 1024*1024L, 256*1024L, LONG_MAX, 1024); NULL, NULL, 8*1024*1024L, 256*1024L, LONG_MAX, 1024);
static MYSQL_SYSVAR_LONGLONG(log_file_size, innobase_log_file_size, static MYSQL_SYSVAR_LONGLONG(log_file_size, innobase_log_file_size,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY, PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,

2
mysql-test/innodb.result
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@ -1738,7 +1738,7 @@ count(*)
drop table t1; drop table t1;
SELECT variable_value FROM information_schema.global_status WHERE LOWER(variable_name) = 'innodb_buffer_pool_pages_total'; SELECT variable_value FROM information_schema.global_status WHERE LOWER(variable_name) = 'innodb_buffer_pool_pages_total';
variable_value variable_value
511 8191
SELECT variable_value FROM information_schema.global_status WHERE LOWER(variable_name) = 'innodb_page_size'; SELECT variable_value FROM information_schema.global_status WHERE LOWER(variable_name) = 'innodb_page_size';
variable_value variable_value
16384 16384

2
srv/srv0srv.c
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@ -239,7 +239,7 @@ in the buffer pool to all database pages in the buffer pool smaller than
the following number. But it is not guaranteed that the value stays below the following number. But it is not guaranteed that the value stays below
that during a time of heavy update/insert activity. */ that during a time of heavy update/insert activity. */
UNIV_INTERN ulong srv_max_buf_pool_modified_pct = 90; UNIV_INTERN ulong srv_max_buf_pool_modified_pct = 75;
/* variable counts amount of data read in total (in bytes) */ /* variable counts amount of data read in total (in bytes) */
UNIV_INTERN ulint srv_data_read = 0; UNIV_INTERN ulint srv_data_read = 0;