Hello.
At first, you should find out the root of the problem. Use 'SHOW PROCESSLIST' or mysqladmin processlist (-i 1 -r options might be helpful). See: http://dev.mysql.com/doc/mysql/en/show-processlist.html >1 query may be performed by mySQL at a time. >is this true ? It depends. But in general it is not true. InnoDB for example allows a great concurrency. See: http://dev.mysql.com/doc/mysql/en/innodb.html >hi, > >I run a web server on a linux box from which PHP connect to a mySQL 4 server ru nning on >another linux box. >tis works well but when the number of concurent connection/queries go high, the DB server >runs very slowly. > >while trying to find a fix to this problem, I've been told that whatever the nu mber of >concurent queries the DB server receive, it process them thru a queue, that no more than >1 query may be performed by mySQL at a time. > >is this true ? > >true or not, will I gain speed by by preventing the web server to perform too m any >connections/queries at the same time? I mean, will 10000 connection/queries be executed >faster if there is at most 25 concurent queries than if there are 100 or more c oncurent >connections/queries? (by queries, I mean a mix of select (lot) and update (few) ) > -- For technical support contracts, goto https://order.mysql.com/?ref=ensita This email is sponsored by Ensita.NET http://www.ensita.net/ __ ___ ___ ____ __ / |/ /_ __/ __/ __ \/ / Gleb Paharenko / /|_/ / // /\ \/ /_/ / /__ [EMAIL PROTECTED] /_/ /_/\_, /___/\___\_\___/ MySQL AB / Ensita.NET <___/ www.mysql.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]