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Re: [fluid-dev] Small CPU stuttering fluidsynth

From: Carma Trepp
Subject: Re: [fluid-dev] Small CPU stuttering fluidsynth
Date: Thu, 27 Jan 2011 23:04:49 +0100

Thank you for your support. I`m fighting right now compiling FS with
all the dependencies. Solved many. Now I have to find pkg-config.

2011/1/27 David Henningsson <address@hidden>:
> On 2011-01-27 00:02, Carma Trepp wrote:
>> Hi Element
>> Thank you for your answer. I checked the device specifications from
>> the ARM Cortex A8. And it have two Floating Point Units, a
>> non-pipelined VFP-lite conforming to the IEEE754 standard for floating
>> point arithmetic and a pipelined SIMD NEON coprocessor. Source:
>> http://www.pandorawiki.org/Floating_Point_Optimization
>> Its interesting that fluidsynth use CPU at 34% when nothing plays. The
>> CPU itself is powerful. It runs PSX and N64 Emulation at fullspeed.
> Interesting. I think the 34% might be due to the reverb and/or chorus
> engines still running although nothing plays. Assuming you're running Linux
> on this device, can you provide perf output?
> As for 1.0.8, that's pretty ancient, please try upgrading to 1.1.2. Also, if
> your gcc version is just as old, that might make a difference. IIRC gcc-4.6
> has better arm optimizations.
> Please let us know how you progress!
> Thanks,
> // David

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