Hi, Good to hear that you have fun in diving into a very large code base. On 12/2/12 10:35 AM, swapnil joshi wrote:
Hi
I have done some fun with Monetdb. i have created my own user define xmin function. objective of that function is find minimum value from specific column.
I have writen some code as follow : ... //*************************************************************************************************/
when i am executing following SQL statement then it will give result but it takes 10 to 13 seconds I know where i am executing on single core of CPU but when i executing that above statement then, I think it will taking data from disk because disk access indicator led blow when i executing that above SQL statement. means, It was not using system main memory.
I will be wrong.
Can each time it is accessing BAT from disk or from main memory? All disk IO is transparently handled by the OS, i.e. see memorymapped file semantics. IO can be triggered both by MonetDB or indirectly by other programs competing with your memory resources, e.g. webbrowsers with heavy Flash scripts. A first impression of the numbers indicate this might be the case.
Can you test me Program ? We don't have the time/resources to test third party experimental code, which does not lead to major functional/bugfix/performance improvements of the MonetDB source code.
regards, Martin
-- Regards, Swapnil K. Joshi
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