Re: mysql driver speed - Jorge Bastos - com.mysql.lists.dotnet

8 messages in com.mysql.lists.dotnetRe: mysql driver speed

From	Sent On	Attachments
Lance Johnson	01 Feb 2005 07:45
Jordan Sparks	01 Feb 2005 08:49
Bob Dankert	01 Feb 2005 08:56
Lance Johnson	01 Feb 2005 09:14
Jorge Bastos	01 Feb 2005 11:03
Jorge Bastos	01 Feb 2005 11:09
Frank	01 Feb 2005 14:15
Barry Zubel	02 Feb 2005 00:36

Subject:	Re: mysql driver speed
From:	Jorge Bastos (mysq...@decimal.pt)
Date:	02/01/2005 11:03:42 AM
List:	com.mysql.lists.dotnet

Going to ODBC is like... going to the past.

----- Original Message ----- From: "Lance Johnson" <ljoh...@DOCS.com> To: <dot...@lists.mysql.com> Sent: Tuesday, February 01, 2005 5:15 PM Subject: RE: mysql driver speed

Your comment on the timing issue is what my thoughts are. On the odbc driver my results from dotnet show either it's taking 0seconds or right at .015seconds. For the mysql direct driver one, it's taking on average .15 seconds. It ranges from .12 seconds up to .20 seconds. But the fact of the matter is it's showing over .1 seconds.

For now we're switching back to odbc because this speed difference is huge when you perform a lot of queries. When just performing queries every now and then, it's not a big deal.

-----Original Message----- From: Bob Dankert [mailto:bo...@nvsn-it.com] Sent: Tuesday, February 01, 2005 10:57 AM To: dot...@lists.mysql.com Subject: RE: mysql driver speed

There are HIGHLY accurate counters available, you just need to use P/Invoke with the API to access them.

More information can be found here:

http://support.microsoft.com/kb/306979/EN-US/

Showing a 10x speed difference with standard timing should be rather accurate as well, especially if it is consistently reproducible.

Mine's blazing fast. But also remember that those numbers aren't all that accurate. Computers do a lousy job a giving accurate subsecond timing. Do you have any try-catch statements that could be slowing things down?

Has anybody noticed slow performance or is it just me? I can do a simple query to a mysql db on our network and it's taking on average .15 seconds. With the mysql odbc driver it's taking .015 seconds. That's a factor of 10. Something doesn't seem right to me.