On 05/30/2012 09:21 AM, Sciss wrote:
I have an Atom N450 netbook. In practical terms, its limits for a
single task are:
* Time-stretching a clip in realtime to 50% to original
* A set with 4-5 monophonic synths, and 4-5 pure audio
* All of the Renoise sample programs
* Most anything you can throw at Mixxx.
While it has very good audio performance -- it has significantly less
headroom than a Core2 or i-series processor (feels like a factor of 2 or 4).
Other non-audio tasks:
* Large compiles take 4-6x longer (e.g. kernel, Qt)
* Number crunching tasks are very slow. It's like the
floating point stuff is driving drunk.
* Processor has a high performance hit for inefficient
memory access (compared to Core2, i-series).
* Processor doesn't benefit as much from SIMD (SSE)
optimizations. E.g. you're lucky to get a 2x performance
boost using SIMD instructions... whereas a Core2 or i-series
will see at least a 2x performance boost.
* Most Atom devices have only 1GB RAM (2GB if you're lucky).
I've not seen an Atom device with more then 2GB.
Finally, all this experience is in 32-bit mode. I've been running in
64-bit mode recently, but haven't done much audio with it. Overall, it
feels about the same.
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