This link has been bookmarked by 3 people and liked by 1 people. It was first bookmarked on 05 Sep 2009, by Graham Perrin.
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13 Sep 09
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10 Sep 09
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05 Sep 09
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NSCache API
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What's New In Mac OS X
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What's New In Mac OS X
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Grand Central Dispatch
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simple and efficient API
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avoiding blocking APIs, contended memory access, and synchronization
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achieve concurrency
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task-queuing API
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locking and explicit thread management
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dispatch source API for handling events.
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Improved Shutdown
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Framework Level
This section introduces changes to the framework-level layers in Mac OS X v10.6.
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10.6 (also known as "Snow Leopard")
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10.6 (also known as "Snow Leopard")
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64-Bit Plug-Ins
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your application needs to mark itself as “dirty” or “clean,”
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API Delta Documents
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a plug-in must match its host application
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File-System Efficiency
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The NSCache API
In addition to the UNIX-level
libcacheAPI -
Printer dialog extensions
Screen savers
Audio units
Spotlight importers
Dashboard plug-ins
Safari plug-ins
Some examples of affected plug-ins include:
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a single mechanism
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URLs to consolidate access to files, file properties, and directory contents
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eliminates internal translations
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Web Inspector Improvements
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two-way (32-bit) universal will not be loaded by 64-bit capable applications
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you should use
file:scheme URLs as file accessors -
System Level
This section introduces changes to the UNIX-level layers in Mac OS X v10.6.
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64-Bit Kernel
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Image Support
The imaging APIs in Mac OS X v10.6 have been simplified
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enable the Develop menu in the Advanced pane in Safari Preferences
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Mac OS X allows a 32-bit kernel to run 64-bit applications
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a 64-bit kernel provides several benefits
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Application Level
This section introduces changes to the application-level layers in Mac OS X v10.6.
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the 64-bit kernel does not support 32-bit drivers
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File-System Efficiency
Mac OS X v10.6 maximizes file-system efficiency
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Framework Level
This section introduces changes to the framework-level layers in Mac OS X v10.6.
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Cache Management with libcache
Aggressive caching is an important technique
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Cache Management with libcache
Aggressive caching is an important technique
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achieve concurrency by avoiding blocking APIs, contended memory access, and synchronization with locking and explicit thread management
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immediately start transitioning your plug-ins
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Add Sticky Noteadd an
x86_64version to the universal binaries -
Improved Shutdown
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a POSIX-layer task-queuing API and a dispatch source API for handling events.
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Improved performance in decoding and rendering large images
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Exchange Support
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Your application should avoid potential paging overhead by actively managing its data caches
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Other Native DOM API Additions
In addition to the DOM Selector Query API
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Your application should avoid potential paging overhead by actively managing its data caches
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OpenCL
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Purgeable Memory
The
NSCacheAPI is not the only way to minimize the memory footprint of your application. -
In the wider system context,
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caches that the operating system can simply purge
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your application needs to mark itself as “dirty” or “clean,”
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In the wider system context, your application can now also help by creating caches that the operating system can simply purge
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Exchange Web Services protocol
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Exchange Server 2007
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high-performance parallel processing power of GPUs
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clean applications are terminated (via
SIGKILL) without further interaction -
Mac OS X v10.6 includes the low-level
libcacheand framework-levelNSCacheAPIs to create these purgeable caches. -
JavaScript Performance
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NSCache API
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QTKit Framework
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conceptually similar to the
libcacheAPI -
autoremoval policies to ensure that the memory footprint of the cache doesn't get too large.
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new, lightweight, and more efficient media playback
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Concurrency with Operation Objects
A Cocoa operation is an Objective-C–based object
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QuickTime X and Mac OS X v10.6
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designed to help you improve the level of concurrency in your application.
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Core Text
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Block objects
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Font Manager API
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in C, C++, and Objective-C
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DOM Query Selector API
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in C, C++, and Objective-C
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64-bit kernel does not support 32-bit drivers
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Formal Protocol Adoption
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10.6 has consolidated the file property API
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There are over 40 file, directory, and volume properties that can be read this way
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Block objects
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64-Bit Kernel
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Grand Central Dispatch
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Gamma 2.2
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a 64-bit kernel provides several benefits
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Mac OS X allows a 32-bit kernel to run 64-bit applications
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Public Stiky Notes
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