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Journalists Cover Microsoft, Using Macs

It’s not an easy time for Microsoft — with Steve Ballmer having to field questions about being “buffoons” and an “evil empire”  at the shareholder’s meeting (.doc) — so when they get together “the world’s most influential technology pundits and online writers” (nb: we weren’t invited) for Mobius to discuss super-secret mobile tech you’d think [...]

Guide To Black Friday Apple Bargains: Cheap MacBooks, iPods and Accessories Galore

Here’s a guide for finding the best bargains on Apple-related gear during the infamous Black Friday sales on November 27. We’ve compiled a comprehensive list of gear from leaked photos of sales flyers and descriptions of sales.
The bargains include a 2.26 GHz MacBook + $150 gift card at Best Buy for $999.99 ; a 32GB [...]

Review: Voices Is Today’s Best Thing Ever, Grab It Now While It’s Cheap

New on the App Store is Voices from the clever folk at Tap Tap Tap. You can guess what it does.

Open it up, pick a silly voice. Helium is pretty silly. A microphone appears and the app even clears your throat for you (try it, you’ll see what I mean). Now speak your brains, and [...]

Review: Sony Walkman S540 Series Video MP3 Player

Press releases, you will hardly be surprised to hear, are rarely very interesting. But one arrived in my inbox a couple of weeks ago that made me double-take.
“Sony’s S Series Walkman,” it chattered, “is a serious challenger to the iPod Nano.” Gosh, really? Perhaps the Cult had better have a look at one, then, despite [...]

Snow Leopard Gives 50% Performance Boost When Running Optimized Software

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Snow Leopard can give your Mac a 50% performance improvement when running optimized software, a developer has found.

Running a Mac Pro from 2007, programmer Christophe Ducommun compared Snow Leopard to Leopard while encoding and decoding video with his MovieGate software.

Ducommun is optimizing MovieGate to take advantage of two important new technologies in Snow Leopard: Grand Central Dispatch and OpenCL. While OpenCL allows powerful graphics processors to perform work for applications, Grand Central Dispatch takes advantage of multiple cores, distributing work among all the available cores.

Together, they apps a pretty big speed bump, according to MacBidouille, which published Ducommun’s results:

Snow Leopard
150 frame/s for encoding in MPEG-2
70% CPU load for decoding
130% CPU load for MPEG-2 encoding (ffmpeg)

Leopard
104 frame/s for encoding in MPEG-2
165% CPU load for decoding
100% CPU load for MPEG-2 encoding (ffmpeg)

Overall, the optimizations give an overall performance increase of about 50%. Ducommun’s Mac Pro is a 2.66 GHz Quad Core machine with a GeForce 8800 GT video card.

About the author

Leander Kahney

Leander Kahney is senior editor of Cult of Mac, editor of two books about technology culture, Cult of Mac and Cult of iPod, and has written for Wired, MacWeek, Scientific American, and The Observer in London. Follow Leander on Twitter @lkahney and Facebook.

Email the author | Read more posts by Leander Kahney.

One comment

    This looks and sounds pretty impressive. It would be interesting to see the same tests done on a present day Mac Pro.

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