大家看看 windows2003 四核 4g内存 my.ini 优化设置是否正确

1. # MySQL Server Instance Configuration File
   
2. # ----------------------------------------------------------------------
   
3. # Generated by the MySQL Server Instance Configuration Wizard
   
4. #
   
5. #
   
6. # Installation Instructions
   
7. # ----------------------------------------------------------------------
   
8. #
   
9. # On Linux you can copy this file to /etc/my.cnf to set global options,
   
10. # mysql-data-dir/my.cnf to set server-specific options
    
11. # (@localstatedir@ for this installation) or to
    
12. # ~/.my.cnf to set user-specific options.
    
13. #
    
14. # On Windows you should keep this file in the installation directory
    
15. # of your server (e.g. C:\Program Files\MySQL\MySQL Server X.Y). To
    
16. # make sure the server reads the config file use the startup option
    
17. # "--defaults-file".
    
18. #
    
19. # To run run the server from the command line, execute this in a
    
20. # command line shell, e.g.
    
21. # mysqld --defaults-file="C:\Program Files\MySQL\MySQL Server X.Y\my.ini"
    
22. #
    
23. # To install the server as a Windows service manually, execute this in a
    
24. # command line shell, e.g.
    
25. # mysqld --install MySQLXY --defaults-file="C:\Program Files\MySQL\MySQL Server X.Y\my.ini"
    
26. #
    
27. # And then execute this in a command line shell to start the server, e.g.
    
28. # net start MySQLXY
    
29. #
    
30. #
    
31. # Guildlines for editing this file
    
32. # ----------------------------------------------------------------------
    
33. #
    
34. # In this file, you can use all long options that the program supports.
    
35. # If you want to know the options a program supports, start the program
    
36. # with the "--help" option.
    
37. #
    
38. # More detailed information about the individual options can also be
    
39. # found in the manual.
    
40. #
    
41. #
    
42. # CLIENT SECTION
    
43. # ----------------------------------------------------------------------
    
44. #
    
45. # The following options will be read by MySQL client applications.
    
46. # Note that only client applications shipped by MySQL are guaranteed
    
47. # to read this section. If you want your own MySQL client program to
    
48. # honor these values, you need to specify it as an option during the
    
49. # MySQL client library initialization.
    
50. #
    
51. [client]
    
52. 
    
53. port=3306
    
54. 
    
55. [mysql]
    
56. 
    
57. default-character-set=latin1
    
58. 
    
59. 
    
60. # SERVER SECTION
    
61. # ----------------------------------------------------------------------
    
62. #
    
63. # The following options will be read by the MySQL Server. Make sure that
    
64. # you have installed the server correctly (see above) so it reads this
    
65. # file.
    
66. #
    
67. [mysqld]
    
68. 
    
69. # The TCP/IP Port the MySQL Server will listen on
    
70. port=3306
    
71. 
    
72. 
    
73. #Path to installation directory. All paths are usually resolved relative to this.
    
74. basedir="c:/mysql/"
    
75. 
    
76. #Path to the database root
    
77. datadir="c:/mysql/Data/"
    
78. 
    
79. # The default character set that will be used when a new schema or table is
    
80. # created and no character set is defined
    
81. default-character-set=latin1
    
82. 
    
83. # The default storage engine that will be used when create new tables when
    
84. default-storage-engine=INNODB
    
85. 
    
86. # Set the SQL mode to strict
    
87. sql-mode="STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"
    
88. 
    
89. # The maximum amount of concurrent sessions the MySQL server will
    
90. # allow. One of these connections will be reserved for a user with
    
91. # SUPER privileges to allow the administrator to login even if the
    
92. # connection limit has been reached.
    
93. max_connections=100
    
94. 
    
95. # Query cache is used to cache SELECT results and later return them
    
96. # without actual executing the same query once again. Having the query
    
97. # cache enabled may result in significant speed improvements, if your
    
98. # have a lot of identical queries and rarely changing tables. See the
    
99. # "Qcache_lowmem_prunes" status variable to check if the current value
    
100. # is high enough for your load.
     
101. # Note: In case your tables change very often or if your queries are
     
102. # textually different every time, the query cache may result in a
     
103. # slowdown instead of a performance improvement.
     
104. query_cache_size=8M
     
105. 
     
106. # The number of open tables for all threads. Increasing this value
     
107. # increases the number of file descriptors that mysqld requires.
     
108. # Therefore you have to make sure to set the amount of open files
     
109. # allowed to at least 4096 in the variable "open-files-limit" in
     
110. # section [mysqld_safe]
     
111. table_cache=2048
     
112. 
     
113. # Maximum size for internal (in-memory) temporary tables. If a table
     
114. # grows larger than this value, it is automatically converted to disk
     
115. # based table This limitation is for a single table. There can be many
     
116. # of them.
     
117. tmp_table_size=256M
     
118. 
     
119. 
     
120. # How many threads we should keep in a cache for reuse. When a client
     
121. # disconnects, the client's threads are put in the cache if there aren't
     
122. # more than thread_cache_size threads from before.  This greatly reduces
     
123. # the amount of thread creations needed if you have a lot of new
     
124. # connections. (Normally this doesn't give a notable performance
     
125. # improvement if you have a good thread implementation.)
     
126. thread_cache_size=120
     
127. 
     
128. #*** MyISAM Specific options
     
129. 
     
130. # The maximum size of the temporary file MySQL is allowed to use while
     
131. # recreating the index (during REPAIR, ALTER TABLE or LOAD DATA INFILE.
     
132. # If the file-size would be bigger than this, the index will be created
     
133. # through the key cache (which is slower).
     
134. myisam_max_sort_file_size=100G
     
135. 
     
136. # If the temporary file used for fast index creation would be bigger
     
137. # than using the key cache by the amount specified here, then prefer the
     
138. # key cache method.  This is mainly used to force long character keys in
     
139. # large tables to use the slower key cache method to create the index.
     
140. myisam_max_extra_sort_file_size=100G
     
141. 
     
142. # If the temporary file used for fast index creation would be bigger
     
143. # than using the key cache by the amount specified here, then prefer the
     
144. # key cache method.  This is mainly used to force long character keys in
     
145. # large tables to use the slower key cache method to create the index.
     
146. myisam_sort_buffer_size=64M
     
147. 
     
148. # Size of the Key Buffer, used to cache index blocks for MyISAM tables.
     
149. # Do not set it larger than 30% of your available memory, as some memory
     
150. # is also required by the OS to cache rows. Even if you're not using
     
151. # MyISAM tables, you should still set it to 8-64M as it will also be
     
152. # used for internal temporary disk tables.
     
153. key_buffer_size=256M
     
154. 
     
155. # Size of the buffer used for doing full table scans of MyISAM tables.
     
156. # Allocated per thread, if a full scan is needed.
     
157. read_buffer_size=8m
     
158. read_rnd_buffer_size=32m
     
159. 
     
160. # This buffer is allocated when MySQL needs to rebuild the index in
     
161. # REPAIR, OPTIMZE, ALTER table statements as well as in LOAD DATA INFILE
     
162. # into an empty table. It is allocated per thread so be careful with
     
163. # large settings.
     
164. sort_buffer_size=212K
     
165. 
     
166. 
     
167. #*** INNODB Specific options ***
     
168. 
     
169. 
     
170. # Use this option if you have a MySQL server with InnoDB support enabled
     
171. # but you do not plan to use it. This will save memory and disk space
     
172. # and speed up some things.
     
173. #skip-innodb
     
174. 
     
175. # Additional memory pool that is used by InnoDB to store metadata
     
176. # information.  If InnoDB requires more memory for this purpose it will
     
177. # start to allocate it from the OS.  As this is fast enough on most
     
178. # recent operating systems, you normally do not need to change this
     
179. # value. SHOW INNODB STATUS will display the current amount used.
     
180. innodb_additional_mem_pool_size=8M
     
181. 
     
182. # If set to 1, InnoDB will flush (fsync) the transaction logs to the
     
183. # disk at each commit, which offers full ACID behavior. If you are
     
184. # willing to compromise this safety, and you are running small
     
185. # transactions, you may set this to 0 or 2 to reduce disk I/O to the
     
186. # logs. Value 0 means that the log is only written to the log file and
     
187. # the log file flushed to disk approximately once per second. Value 2
     
188. # means the log is written to the log file at each commit, but the log
     
189. # file is only flushed to disk approximately once per second.
     
190. innodb_flush_log_at_trx_commit=0
     
191. 
     
192. # The size of the buffer InnoDB uses for buffering log data. As soon as
     
193. # it is full, InnoDB will have to flush it to disk. As it is flushed
     
194. # once per second anyway, it does not make sense to have it very large
     
195. # (even with long transactions).
     
196. innodb_log_buffer_size=4M
     
197. 
     
198. # InnoDB, unlike MyISAM, uses a buffer pool to cache both indexes and
     
199. # row data. The bigger you set this the less disk I/O is needed to
     
200. # access data in tables. On a dedicated database server you may set this
     
201. # parameter up to 80% of the machine physical memory size. Do not set it
     
202. # too large, though, because competition of the physical memory may
     
203. # cause paging in the operating system.  Note that on 32bit systems you
     
204. # might be limited to 2-3.5G of user level memory per process, so do not
     
205. # set it too high.
     
206. innodb_buffer_pool_size=8M
     
207. 
     
208. # Size of each log file in a log group. You should set the combined size
     
209. # of log files to about 25%-100% of your buffer pool size to avoid
     
210. # unneeded buffer pool flush activity on log file overwrite. However,
     
211. # note that a larger logfile size will increase the time needed for the
     
212. # recovery process.
     
213. innodb_log_file_size=10M
     
214. 
     
215. # Number of threads allowed inside the InnoDB kernel. The optimal value
     
216. # depends highly on the application, hardware as well as the OS
     
217. # scheduler properties. A too high value may lead to thread thrashing.
     
218. innodb_thread_concurrency=18
     

复制代码

感觉此设置主要是针对双核+2g内存的 哪位高手帮助配置一下，谢谢

用2003简直是浪费硬件.而且跑不出极限数据
-------------------------------------------------
换操作平台 2008 R2
IIS 7.5
PHP5.2.12
MySQL 5.1.X

eeeeeeeeeeeeeeee

100G    64M
用的上innodb？
连接数直接开到1024吧