VMware vSphere

I have installed UBUNTU 9.10 with a database server mysql in vmware ESXI 4.1 and I had experience

a very slow performance for that database.

there is some parameters to be configured with a no-default value?

thanks

Here are a few that I specify on my MySQL database servers. I'm sure someone with more MySQL admin experience might give me dirty looks for a couple of these, but they're what I use anyway. But I've been able to put a pretty heavy load on default installs of MySQL (hundreds of web sites accessing) with pretty decent performance. What sort of hardware resources do you have allocated to your VM? What is your storage system like?

key_buffer_size = 256M

innodb_buffer_pool_size = 32M

innodb_log_file_size = 32M

thread_cache_size = 25

query_cache_type = 1

query_cache_size = 16M

query_cache_limit =256M

max_heap_table_size = 32M

read_buffer_size = 1M

max_connections = 700

max_write_lock_count = 1

low_priority_updates = 1

max_allowed_packet = 1M

table_cache = 256

sort_buffer_size = 1M

read_rnd_buffer_size = 4M

myisam_sort_buffer_size = 64M

thankf for your help!

I had apply this configuration and now Mysql work fine.

thanks for help.