> Do any of you use cfcache? I am inheriting a site that uses > it everywhere, even on pages that change every 30 seconds or > more (its an auction type site, so every bid would change the > page) In my experience, I try to optimize the DB and my > queries and processing to the Nth degree, so I have never had > a need for cfcache. Does this scale well, or has anyone had > problems or issues they have run into using it?
CFCACHE can certainly scale, and page-level caching can be useful even for short intervals, if enough people visit the page. Ideally, you should be using some sort of mechanism that takes advantage of If-Modified-Sincee HTTP request headers, so that you can skip processing the page if it hasn't changed. CFCACHE provides this by default in CF 7, and if you only want client-side caching (the HTTP request header stuff mentioned above), you can use that option. Here's a good overview of how caching works in CF: http://www.adobe.com/devnet/coldfusion/articles/cfcaching.html Of course, there is some overhead in server-side page-level caching, so you do want to limit it to cases where the cached page is likely to be reused. As far as I can tell, there's no overhead in client-side caching, so you should go ahead and use that wherever possible. If you want to cache segments of a page, there's a nice custom tag for this: http://www.bpurcell.org/blog/index.cfm?entry=963&mode=entry Again, you have to calculate whether those segments are likely to be reused, of course. Dave Watts, CTO, Fig Leaf Software http://www.figleaf.com/ Fig Leaf Software provides the highest caliber vendor-authorized instruction at our training centers in Washington DC, Atlanta, Chicago, Baltimore, Northern Virginia, or on-site at your location. Visit http://training.figleaf.com/ for more information! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Upgrade to Adobe ColdFusion MX7 Experience Flex 2 & MX7 integration & create powerful cross-platform RIAs http:http://ad.doubleclick.net/clk;56760587;14748456;a?http://www.adobe.com/products/coldfusion/flex2/?sdid=LVNU Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:267160 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
