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Comment: Re:In a laptop performance isn't the only issue (Score 1) 405

by el_chupanegre (#41366591) Attached to: Are SSDs Finally Worth the Money?

One interesting side effect of having a legitimately fast SSD is even though you save power power on not spinning a platter around you can end up using that power (or more) with increased CPU usage. Ex: Semi-Random reads from mechanical drive might be pulling data ~40MB/sec on a good day... the CPU doesn't have a lot to process at once or just does in chunks so all that nice power saving tech comes into play (reduced clock or cores or what have you). Now, pop an SSD in and start getting 300-500MB+ semi-random read speeds and your CPU will find itself a hell of a lot more busy having to actually process all of that.

It's a good "problem" to have, if you can even call it a problem ;)

If you need to read 1GB of data off disk (say, loading a game or something) wouldn't you use exactly the same amount of CPU power whether you load it at 40MB/s or 400MB/s? Either way all of that data needs reading from storage and 'processing', why does reading it slower mean it takes less power?

If anything I would've thought and SSD takes less power overall because you can wake up the full CPU, do any processing and then put it back into a low-power mode. If you're streaming data slowly you need to keep at least 1 core active to handle the stream.

Comment: Re:It's pretty clear.... (Score 2) 244

by el_chupanegre (#41332211) Attached to: Fragmentation Comes To iOS

Clearly going forward, there will be just two resolutions that developers need to worry about. One for the iPhone/iPod, and one for the iPad, as the older resolutions are being phased out and don't exist in any new products.

The old iPhones/iPods/iPads don't cease to exist just because Apple brings out a new one. There is an absolutely enormous installed base of "old" resolutions out there that might still buy your apps, so you can't just start ignoring them. If you want to develop an iOS app you now need to consider whether you accept your app being run in "black bars" mode on the new phone (almost certainly not), or handle the fact that resolution changes depending on which device your app is installed on. I haven't looked at the API so I don't know how much of a PITA that may or may not be, but it definitely needs to be taken into account. The fragmentation is not nearly as bad as on Android, but it definitely exists and needs to be catered for.

Comment: What hardware? (Score 5, Insightful) 544

by el_chupanegre (#25525481) Attached to: Is Ubuntu Getting Slower?

Were they testing each distribution on exactly the same hardware?

If so, that sounds completely fair to me that it would be slower. Go and (try to) install Vista on a machine that originally came with XP (pre-SP1) and see how much slower it is. Is that a fair test either? I think not.

As software gets more useful (and Ubuntu has, Vista not so much) it gets bigger and thus gets slower on the same hardware. Hardware advances at the same time though, so in real terms they keep about equal. When you test new software on old hardware of course it's going to be slower though.

"A great many people think they are thinking when they are merely rearranging their prejudices." -- William James

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