Archive for December 17, 2014

Wednesday, December 17, 2014 [Tweets] [Favorites]

Duet Display

Duet Display (via Kif Leswing):

Duet is the first app that allows you to use your iDevice as an extra display for your Mac using the Lightning or 30-pin cable.

Sounds great, though it’s not yet approved by the App Store. I’ve been using Air Display for this, but due to Wi-Fi it’s slower and doesn’t always work.

Update (2014-12-18): Rob Griffiths:

Those two options also reveal my only real complaint about Duet Display as of today—it can be a real CPU hog. When set to display in retina mode at 60fps, the CPU usage on my 13-inch Retina MacBook Pro with attached retina iPad mini exceeds 120 percent. With this much CPU going to the extra display, I noticed some lag when switching between apps and launching new programs.

Setting the frame rate to 30fps and disabling retina mode drops that figure to around 30 percent, which is still quite high.

Juli Clover:

Along with the Retina issue, potential buyers should be aware of some other small issues that we ran into. Even in non-Retina mode, on a 2012 Retina MacBook Pro, there was some slight cursor lag, and we also had problems with visual artifacts on some apps. When watching YouTube videos, for example, there were some occasional performance blips.

Update (2014-12-22): Dean McNamee looks at how Duet Display works (via Milen Dzhumerov).

Farewell, Dr. Dobb’s

Andrew Binstock, enearly six years after the end of the print edition:

This year, our website will deliver almost 10.3 million page views, which is an unprecedented number for Dr. Dobb’s. It’s up from 9 million last year and 8 million three years ago. That kind of growth is somewhat unusual for a site that has not changed its look or its mission, nor indulged in tawdry tricks like click-bait headlines or slideshows promising 9 quick tips for choosing a coding style. The numbers confirm that there is a deep thirst in the programmer community for long-form technical content featuring algorithms and code, as well as strong demand for explanations of new developer technologies and reliable reviews of books and tools.

If I were so inclined, this might be the right time for me to move on, and so leave, as they say in sports, “at the top of my game.” And indeed I will be leaving Dr. Dobb’s at the end of the year. But it would be more accurate to say that it is Dr. Dobb’s that is leaving: Our parent company, United Business Media (UBM), has decided to sunset Dr. Dobb’s. “Sunset” sounds like a marketing euphemism to avoid saying “closing down,” but in this context, it has a specific meaning that “closing” does not convey. That is, that there will be no new content after year end; however, all current content will be accessible and links to existing Dr. Dobb’s articles will continue to work correctly. It is the equivalent of a product coming to end of life. It still runs, but no new features will be added.

Michael Swaine:

I never gave up on #DDJ. Just started doing the same thing under a different banner.

Matt Rosoff:

Brutal times for tech trade publications. 10.3m pageviews/year not enough to keep Dr Dobbs alive.

On the other hand, one-man operation Daring Fireball gets 4–5 million page views per month, so it’s totally believable that less than 1 million per month would not be enough to fund a whole magazine.