[Elecraft] W9OY on P3
ab2tc
ab2tc at arrl.net
Fri Feb 19 16:18:16 EST 2010
I would have agreed if Windows had offered developers an easy way of
prioritizing threads and processes. But as far as I know it doesn't (or
developers don't know how to use it). In my experience the performance of a
PC with 90% CPU load is miserable for all processes running on it. With that
said, I don't see why PowerSDR should incur that kind of CPU load on a 3GHz
machine. I am running XP home edition on a dual core Dell at 2.9GHz and 2Gb
of RAM. My CPU utilization is hovering between 15 and 30% with all of the
following running:
LP-Bridge
HRD
PowerSDR with EMU-0202 sound card at 192ks/s
VE7CC cluster client (highly recommended)
Iexplore composing this message
Thunderbird mail client
DX Atlas
I can add more applications and the CPU barely nudges upwards. I think most
people would agree that a car that has to be driven always with the
accelerator nearly to the metal is underpowered and not much of a joy. I am
a firmware developer and we always worry whenever the CPU utilization
exceeds 50% even though we use OS's that allow intelligent prioritization of
tasks.
AB2TC - Knut
Al Lorona wrote:
>
> Just a minor point: There might be a misconception that high CPU
> utilization means your computer is inadequate for the task.
>
> Actually, you want the CPU to work hard for you. It isn't only CPU you
> should worry about, it's what is called the 'run queue'. The run queue
> determines how long your job has to wait until it's serviced by the
> computer. It's okay to have 100% CPU (and in fact you want it) if you
> don't have to wait at all.
>
> A person assessing the performance of a computer looks at several other
> things besides CPU when determining what to tune for better performance.
>
>
> Don Wilhelm-4 wrote:
>>
>
>> I am using a 3.0 GHz Pentium 4 with 1 GB of RAM, running
>> WinXP Pro and the CPU utilization ranges from 50% to 90%, so anyone
>> thinking of choosing this alternative with a lesser computer had better
>> think about a new computer first.
> <snip>
>
>
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