Performance: Remoting vs. Web Services

本文探讨了HTTP与TCP在极端场景下的吞吐量对比,虽然TCP在某些情况下能提供更高的吞吐量,但HTTP因其广泛的应用和额外的功能(如代理、压缩和路由等)而更具优势。此外还讨论了Windows Service与IIS、二进制与SOAP、远程调用与Web服务之间的权衡。

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HTTP vs. TCP. Even though TCP squeezes out more throughput in extreme scenarios, it's hard to argue against the ubiquity of HTTP and port 80. It costs a little more, but you get proxies, compression, routing, and a lot more. Well worth it for the small cost.


Windows Service vs. IIS. Really the same argument as above. Like HTTP, IIS is such a well understood entity. It gives you a lot of free bonus functionality you wouldn't get in a vanilla service (think web farms for scalability). It's hard to justify not using it, given the minor performance hit.


Binary vs. SOAP. Binary is "poor man's compression". Plaintext/SOAP has the advantage of transparency, so if you can get a decent compression layer in there somewhere, you really don't need binary. I can't believe MS didn't include a compression layer in their remoting stack, so you might as well plan on using binary for now. This ties directly into the serialization time, which can be significant on large objects/datasets; the improvement in performance can be dramatic.


Remoting vs. Web Service. Where do I start? It depends how tightly coupled you want your application to be to your server-side API. Remoting is a little easier to get running with minimal work in the short term, but the long term benefits skew heavily towards Web Services. When you build a WS, you've built a truly generic HTTP interface layer that you can leverage for the forseeable future. This isn't a COM or CORBA flash in the pan.


[url]http://www.codinghorror.com/blog/archives/000049.html[/url]
资源下载链接为: https://pan.quark.cn/s/9e7ef05254f8 在苹果的生态系统中,IAP(应用内购买)是苹果应用商店(App Store)中应用开发者常采用的一种盈利模式,允许用户在应用内直接购买虚拟商品或服务。苹果为开发者提供了一份详细的人民币(CNY)IAP定价表,这份定价表具有以下特点: 价格分级:定价表由多个价格等级组成,开发者可根据虚拟商品的价值选择相应等级,等级越高,价格越高。例如,低等级可能对应基础功能解锁,高等级则对应高级服务或大量虚拟道具。 税收与分成:苹果会从应用内购买金额中抽取30%作为服务费或佣金,这是苹果生态的固定规则。不过,开发者实际到手的收入会因不同国家和地区的税收政策而有所变化,但定价表中的价格等级本身是固定的,便于开发者统一管理。 多级定价策略:通过设置不同价格等级,开发者可以根据商品或服务的类型与价值进行合理定价,以满足不同消费能力的用户需求,从而最大化应用的总收入。例如,一款游戏可以通过设置不同等级的虚拟货币包,吸引不同付费意愿的玩家。 特殊等级:除了标准等级外,定价表还包含备用等级和特殊等级(如备用等级A、备用等级B等),这些等级可能是为应对特殊情况或促销活动而设置的额外价格点,为开发者提供了更灵活的定价选择。 苹果IAP定价表是开发者设计应用内购机制的重要参考。它不仅为开发者提供了标准的收入分成模型,还允许开发者根据产品特性设定价格等级,以适应市场和满足不同用户需求。同时,开发者在使用定价表时,还需严格遵守苹果的《App Store审查指南》,包括30%的分成政策、使用苹果支付接口、提供清晰的产品描述和定价信息等。苹果对应用内交易有严格规定,以确保交易的透明性和安全性。总之,苹果IAP定价表是开发者在应用内购设计中不可或缺的工具,但开发者也需密切关注苹果政策变化,以确保应用的合规运营和收益最大化。
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