Upgrade 5.5 on linux to 5.6 on solaris

[jongse park]

Hi

I upgraded mysql 5.5 on linux to 5.6 on solaris using mysqldump.
There were no errors during insert data in mysql 5.6.
After it was upgraded. MySQL 5.6 was slower than before.
my.cnf file is exactly same both of them.
New Machine is better than 5.5 machine.

which part do I have to check to fix this problem?

I currently set back mysql 5.6 to mysql 5.5 for my service.

Please give me help.

Thanks