Leopard 增强了对多核处理器的支持

Junne

Now that Intel has moved their processor line primarily to multicore, most of Apple's shipping Macs have at least 2 cores (and as many as 8). According to Apple's Leopard pages, Apple has introduced significant performance improvements into Leopard to take advantage of all these multicore processors. The new Leopard scheduler is very efficient at allocating tasks across multiple cores and processors. So Leopard spends less time managing tasks and more time performing computations. A new multithreaded network stack speeds up networking by handling network inputs and outputs in parallel. Apple's applications such as Mail, Address Book and Font Utility have been updated to be multicore ready: Each of these apps breaks up processor-intensive actions into a series of more manageable steps that execute one by one on single-CPU computers and in parallel on newer, multicore systems. Cocoa uses that same technology to speed up Spotlight searches and Dictionary lookups. Apple also introduced a new API (NSOperation) which makes it easier for programmers to take advantage of multicore processing

重要内容如下: 目前的intel已经从单一核心的处理器产品线转移到了多核心的产品线,而大多数的Apple的Mac系统都至少是2个核心的(最多8个核心),对于Apple最新的Leopard操作系统上的性能的改善来讲,Apple希望得力于多核上的进步. 如Mail/Address Book 和 Font应用程序已经支持了多核处理器.Apple同时加入了新的API(NSOperation),在多核心的平台下让这些程序更加友好/高效的执行 ★★★