Bizarre query performance

2001-10-05 Thread Philip Brown
I have been testing an application that uses mysql on SCO OpenServer and I have discovered some strange query performance. To investigate the matter further, I have written a client program that uses the mysql C API directly so that I can time things exactly. Environment: Server: SCO OpenServer

RE: Bizarre query performance

2001-10-05 Thread Philip Brown
> Have you tried "explain"ing the two select to see where all the time is > being spent and how the queries are optimized? Sorry, I should have included that in my detail. +---+---+---+-+-+---+--+---+ | table | type | possible_keys | key | key

RE: Bizarre query performance

2001-10-05 Thread Philip Brown
> How is your DNS, WINS,... setup? SCO/Caldera UNIX can use DNS when you do > not think it will. Most SCO/Caldera tcp what ever will do a forward and > reverse DNS look-up. I can add entries in the MS machines in the hosts > file location MS OS/install dependent and very times. All machines ha

RE: Bizarre query performance

2001-10-05 Thread Philip Brown
> > - Original Message - > From: "Philip Brown" <[EMAIL PROTECTED]> > To: "Russell Miller" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> > Sent: Friday, October 05, 2001 1:34 PM > Subject: RE: Bizarre query performance > > > >

RE: Bizarre query performance

2001-10-05 Thread Philip Brown
> I suppose your test program connects, and loops the same query multiple > times in the same session? (Just to rule out connect/disconnect > overhead) Of course. I also run the same query multiple times, to eliminate caching issues. Performance on successive iterations is the same as on the fir