[ic] caching search results, academic discussion
Mike Heins
interchange-users@icdevgroup.org
Thu Jan 30 23:44:01 2003
Quoting Mike Heins (mike@perusion.com):
> Quoting Jeff Dafoe (jeff@badtz-maru.com):
> > Hello,
> >
> > I have noticed that, on my system, most of the load is generated by
> > product scans. It seems to be the IO issue created when dozens of people
> > hit the first page of the search results at once and the system has to scan
> > the products and write the resultant match list out to the session
> > directory. I suspect it is the writing of the results that creates the
> > highest load, as write operations are typically much slower than read
> > operations. When pondering this, I realized that all of my users are doing
> > the same searches (via the category_vertical links) but each search is
> > resulting in redundant scans and writes. I think there may be some
> > opportunity for caching here. I am thinking it might be possible to create
> > one copy of the results that were returned for a given search instead of
> > each user having their own copy. This global result list could be updated
> > at certain intervals, much like the timed-build tag.
> > This is assuming I haven't missed some way to cache results page that
> > currently exists, which is not impossible.
>
> [timed-build ...] with an embedded search-region would be the way to
> go.
>
[timed-build file="timed/cat.[cgi name=cat filter=filesafe keep=1]" minutes=60]
You need the keep=1 to prevent transforming the variable....
--
Mike Heins
Perusion -- Expert Interchange Consulting http://www.perusion.com/
phone +1.513.523.7621 <mike@perusion.com>
Nature, to be commanded, must be obeyed. -- Francis Bacon