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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: decreased caching efficiency?
On Fri, Oct 20, 2000 at 11:59:58AM -0700, Travis Grant wrote: [..] > Commerce sites are also dependent on dynamic technology that cannot be > cached. Although you will find sites that are entirely static (buy.com & > etoys.com) you will generally find that these models are based on volume and > that the majority of these sites have never seen a dollar in profit. However > the profitable boutique type sites like eStyle.com, are entirely dynamic. > Margins are protected by a contractual product line. When you place an > order, a query verifies inventory prior to final checkout. In addition, > product pages indicate whether items are in stock or not. You cant cache > these types of sites. [..] Each and every button, product image etc could be cached, regardless of the dynamic nature of the website. Images cost cycles, bw. [..] > Most caching implementations will cost way more than the bandwidth costs > they avoid. You get no argument there ;-). I never felt that you could ever justify caching in terms of bandwidth savings. You can only justify in terms of improving a users experience. And in that sense, you are giving considerable resources to a content origin, and a free service to them. That's why the CDN strategy is much more attractive, where you have a hosting relationship of some kind with the content origin. [..] > load on the DB servers. But TTLs will usually have to be set pretty low (2 > seconds) in order to do this and the technologies will have to be catered to > web development environments (like cacheflow and ASP). [..] Hmm, if you cache what I suggest above, that's not really neccessary... No? Cheers, Chris -- Christian Kuhtz Architecture, BellSouth.net <[email protected]> -wk, <[email protected]> -hm Atlanta, GA "Speaking for myself only."
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