MySQL Forums
Forum List  »  InnoDB

Re: Need help to improve innodb performance
Posted by: Rick James
Date: April 18, 2009 05:58PM

20K connections is not advised. See this thread:,238056,258337

1.5GB/thread -- that is worst case, based on sort_buffer_size, etc. You will rarely have more than a few threads even attempting to use the max. I have found a dozen formulas, all different, none realistic.

20GB buffer pool -- fine. And it leaves a bunch of room in case you really have lots of connections.

Do you have 20K people who might log in? Will they log in at the same time? Will they be executing queries all the time? I doubt all those. And, if you do have such huge numbers, then you probably need lots of slaves, and possibly sharding of the data among multiple masters.

Options: ReplyQuote

Written By
Re: Need help to improve innodb performance
April 18, 2009 05:58PM

Sorry, you can't reply to this topic. It has been closed.

Content reproduced on this site is the property of the respective copyright holders. It is not reviewed in advance by Oracle and does not necessarily represent the opinion of Oracle or any other party.