mysql + php加速

Question

php script 1 -INSERT 500 record per second and php script 2 -UPDATE some data to that table (500 per second)

Web application SELECT data to the database to view data, draw statistic, etc

My problem is, it take long loading time to view data while the application inserting/updating data to table same time.

can anyone provide a solution for this?

Thanks in advance

Answer 1

You can use just one query for inserting:

Example:

INSERT INTO table (id,value) VALUES (1,2), 
                                    (2,3), 
                                    (3,4),
                                     ...

On some condition that applies to UPDATEs too

Edit

Based on your comment you can use INSERT DELAYED

Or you can use apccache or memcached to initially store the values in the memory than flush it into db each X time with the query above

Answer 2

If your SELECT clauses are mostly aggregate data or it's not mission critical that they be absolutely accurate every time they are called, you could try changing the isolation level to READ COMMITTED , or READ UNCOMMITTED which should give you a speed increase on the SELECT clause. You can read about the differences here:

http://dev.mysql.com/doc/refman/5.0/en/set-transaction.html