[OLPC-AU] Csound slow on XO 1.75

[Sridhar Dhanapalan]

CCing Barry, who may be able to shed some light on this.

Sridhar


On 6 July 2012 16:44, thorin kerr <thorin.kerr at gmail.com> wrote:
> I've been having some trouble with Csound on the XO 1.75. A quick benchmark
> test suggests performance of Csound on the 1.75 is substantially slower.
> Attached are two logs of an identical test conducted on an XO 1.5 and an XO
> 1.75.
>
> of note,
> XO 1.5:
> Elapsed time at end of performance: real: 38.003s, CPU: 37.290s
>
> XO 1.75
> Elapsed time at end of performance: real: 149.952s, CPU: 141.670s
>
> If I were to speculate, without having looked further, my guess is csound
> compilation isn't being optimised for ARM. It's causing realtime performance
> problems in jam2jam, but I must admit I don't relish the task of compiling
> csound myself.
>
>
> Thorin
>
>
>
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>
>
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