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NSURLConnection performance on iPhone

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NSURLConnection performance on iPhone

Subject: NSURLConnection performance on iPhone
From: Ben Lachman <email@hidden>
Date: Sun, 02 Aug 2009 01:50:25 -0400

Hi All:

I'm working on a small iPhone project this weekend that among other things downloads some medium sized video files. To do this I set up a NSURLConnection and use an NSOutputStream to write the data to my apps' documents folder as it arrives. The only problem is that I'm seeing lousy download speed, particularly over wifi (~200K/sec over 3G, <100K/sec over wifi). Any ideas as to why this might be or if there is anything I can do to improve things? Currently in connection:didReceiveData: I append the incoming data to a temporary buffer (mutable data obj) and then every ~1MB I write it out to disk using my output stream. I do this because writing the stream to disk every time I received data was even slower.

Thanks for any thoughts,
->Ben
--
Ben Lachman
Acacia Tree Software

http://acaciatreesoftware.com

email: email@hidden
twitter: @benlachman
mobile: 740.590.0009

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Re: NSURLConnection performance on iPhone
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