[hpsdr] HPSDR / PowerSDR hardware selection

[Eric Blossom]

On Sun, May 25, 2008 at 02:28:26PM +0100, Michael White wrote:
> ***** High Performance Software Defined Radio Discussion List *****
>
> I totally agree Glenn.
>
> To me this is a problem with these type of OS we can only really guess what 
> is going on under the hood. It is so difficult to properly engineer a real 
> time system using Windows or even Linux, because the guts of the system is 
> inaccessible  (to most people),  and getting a setup that has a low 
> probability of buffer overrun is something of a black art.

Speaking about most Unix and all Linux systems, getting rid of page
faults in your own code is trivial.  There is a system call that will
lock all of the relevant pages into memory.  See man mlock.

Eric

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