Everyone says WordPress can handle north of a 100,000 or a million posts, no problem! BS.
If you have a ton of posts in your WordPress blog (we have over 35K in one site at work), it turns out that the Previous and Next links on each post may be running a tough query on your database. I wanted to know why MySQL was using so much CPU and wrongly assumed
I wanted to see how I could improve the performance of a MySQL database with mixed table engines by converting all the MyISAM tables to InnoDB, as well as make the huge DB responsive while backing up by using mysqldump with the --single-transaction option. I used the following PHP script (I know, spare me): [crayon-5eab0f66c4297369255516/]