I see your point about seeing more of a performance difference under load.

And I think you're right about "something else changing" about the same time
I cleared the cache.  I believe I didn't delete all data from the table before
inserting some duplicate data.

Thanks for the feedback!

Rick

> -----Original Message-----
> From: Dave Watts [mailto:[EMAIL PROTECTED]
> Sent: Saturday, April 26, 2008 10:29 PM
> To: CF-Talk
> Subject: RE: CachedWithin question...
> 
> > I've just begun using "cachedwithin" and ran into an issue
> > when running an insert query (not the one with the
> > "cachedwithin" setting).
> >
> > I got a duplicate key error.  I traced that down to the fact
> > that I had used "cachedwithin" on another query (a select
> > query) with a different name that involved the same data as
> > the above mentioned insert query.
> >
> > Once I ran the select query with a cachedwithin setting of 0,
> > the cache apparently cleared and the other insert query ran
> > without any error.
> 
> The existence of a cached query should have absolutely no effect on any
> insert queries you run. I suspect there's another problem that simply went
> away around the same time as your manually clearing the cache. Can you post
> the exact error message you received?
> 
> > This could get complicated.  The "cachedwithin" setting is
> > only shaving about 1 second off query results... from 2-3 for
> > query and display, down to about 2 seconds.  I'm wondering if
> > having to run a query using "cachedwithin" with a 0 setting
> > every time I want to insert data is worth it.
> 
> The measure of any performance enhancement is how it works under normal
> load. When you look at this, if you're the only one running the application,
> you're unlikely to see a significant performance difference. That said, I
> usually see more of a difference than that when casually observing the
> application debug output.
> 
> Dave Watts, CTO, Fig Leaf



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