Oracle 5.0 Reference Manual page 1258

that are created if you use
regardless of the value of
small amounts, after which extensions occur in increments of 4MB.
•
innodb_buffer_pool_awe_mem_mb
Command-Line Format
Option-File Format
Option Sets Variable
Variable Name
Variable Scope
Dynamic Variable
Platform Specific
The size of the buffer pool (in MB), if it is placed in the AWE memory. If it is greater than 0,
innodb_buffer_pool_size
maps that AWE memory. A good value for
InnoDB
The maximum possible value is 63000.
To take advantage of AWE memory, you will need to recompile MySQL yourself. The current project
settings needed for doing this can be found in the
This variable is relevant only in 32-bit Windows. If your 32-bit Windows operating system supports
more than 4GB memory, using so-called "Address Windowing Extensions," you can allocate the
buffer pool into the AWE physical memory using this variable.
InnoDB
•
innodb_buffer_pool_size
Command-Line Format
Option-File Format
Option Sets Variable
Variable Name
Variable Scope
Dynamic Variable
The size in bytes of the memory buffer
default value is 8MB. The larger you set this value, the less disk I/O is needed to access data in
tables. On a dedicated database server, you may set this to up to 80% of the machine physical
memory size. However, do not set it too large because competition for physical memory might cause
paging in the operating system. Also, the time to initialize the buffer pool is roughly proportional to its
size. On large installations, this initialization time may be significant. For example, on a modern Linux
x86_64 server, initialization of a 10GB buffer pool takes approximately 6 seconds. See
"The Buffer Pool"
InnoDB
•
innodb_checksums
Version Introduced
Command-Line Format
Startup Options and System Variables
InnoDB
innodb_file_per_table=1
innodb_autoextend_increment
--innodb_buffer_pool_awe_mem_mb=#
innodb_buffer_pool_awe_mem_mb
Yes,
innodb_buffer_pool_awe_mem_mb
innodb_buffer_pool_awe_mem_mb
Global
No
windows
Permitted Values
Type
numeric
(windows)
Default
0
Range
0 .. 63000
[1238] is the window in the 32-bit address space of
--innodb_buffer_pool_size=#
innodb_buffer_pool_size
Yes,
innodb_buffer_pool_size
innodb_buffer_pool_size
Global
No
InnoDB
5.0.3
--innodb_checksums
1238
[1241]. Those files are auto-extending
[1237]. The initial extensions are by
innodb_buffer_pool_size
innobase/os/os0proc.c
[1238]
uses to cache data and indexes of its tables. The
[1238]
where
mysqld
[1238] is 500MB.
source file.
Section 8.6.2,