RE: Query takes different times for execution...

2006-08-23 Thread Jerry Schwartz
: Wednesday, August 23, 2006 7:02 AM To: mysql@lists.mysql.com Subject: Query takes different times for execution... Hello all, I wanted to know why a select query takes ,say, 18 sec to execute the first time I execute it and then for every successive execution it takes, say, 10 sec. I have disabled

Re: Query takes different times for execution...

2006-08-23 Thread Dan Buettner
When a query goes from 18 to 10 seconds, or similar times, it is likely because of caching at the MySQL or OS/disk level, not query caching. The first time, the info had to be found on the disk and read, which is relatively slow. After that it's in memory and can be accessed more quickly in the

Re: Query takes different times for execution...

2006-08-23 Thread chris smith
On 8/23/06, Ratheesh K J <[EMAIL PROTECTED]> wrote: Hello all, I wanted to know why a select query takes ,say, 18 sec to execute the first time I execute it and then for every successive execution it takes, say, 10 sec. I have disabled Query Caching on the server. If its not Query Caching then

Query takes different times for execution...

2006-08-23 Thread Ratheesh K J
Hello all, I wanted to know why a select query takes ,say, 18 sec to execute the first time I execute it and then for every successive execution it takes, say, 10 sec. I have disabled Query Caching on the server. If its not Query Caching then what else is causing this variation in exec time? 1