6.2 Stable + Mysql 5.0 poor performance

[Volodymyr Kostyrko]

ivo tasev wrote:
> Hi all,
> i have machine with 2 x Quad Core Xeon cpu`s 2G ram and 4 3ware disks in 
> raid10. There is 6.2 Stable on it and mysql 5.0 from the ports.
> 
> The mysql is installed with the following build options:
> WITH_XCHARSET=all WITH_OPENSSL=yes BUILD_OPTIMIZED=yes WITH_ARCHIVE=yes  
> WITH_FEDERATED=yes WITH_NDB=yes
> 
> I`m using libmap.conf with this in it:
> 
> [mysqld]
> libpthread.so.2         libthr.so.2
> 
> This is what I have in my.cnf :
> 
> set-variable = key_buffer=1024M
> set-variable = max_allowed_packet=64M
> set-variable = thread_stack=1024K
> set-variable = read_buffer_size=2M
> set-variable = read_buffer_size=2M
> 
> set-variable = max_connections=350
> set-variable = interactive_timeout=100
> set-variable = wait_timeout=120
> set-variable = max_user_connections=340
> 
> set-variable = query_cache_limit=1M
> set-variable = query_cache_size=32M
> set-variable = query_cache_type=1
> 
> set-variable = table_cache=1024
> set-variable = thread_cache=128
> set-variable = thread_cache_size=40
> set-variable = thread_concurrency=16
> 
> I`m performing the following test with super-smack:
> :~# time super-smack -d mysql  
> /usr/local/share/super-smack/select-key.smack 10 10000
> 
> the results are:Query Barrel Report for client smacker1
> connect: max=1ms  min=0ms avg= 0ms from 10 clients
> Query_type      num_queries     max_time        min_time        q_per_s
> select_index    200000  0       0       18599.71
> 
> I can achieve better performance even on my colleague`s  notebook with 
> 6.2 stable !?
> 
> I`ll be very thankful if someone can give me any ideas:)

   Try looking at hard drive usage.

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