[mythtv] system status reports wrong sizes

[Nigel Pearson]

> I've noticed a number of times that whenever I would check out the
> "System Status" section of the frontend, that it always reported a very
> low number for my swap space.  I looked into it enough to ask the
> following question:
>
> Shouldn't the "getMemStats ()" method in "libs/libmyth/util.cpp" use 
> the
> "sinfo.mem_unit" field to determine the sizing of all other values in 
> sinfo
> before it simply divides everything by the macro "MB" (1024 * 1024) ?

	Indeed it should.

	I didn't realise that there was a "units" field when I reviewed
Tommy's code - I think I was looking at a sysinfo manpage that lists
the 2.3.16 version of struct sysinfo first, and didn't read further :-(


	How about this:
totalMB = sinfo.totalram  / (MB/sinfo.mem_unit),
freeMB  = sinfo.freeram   / (MB/sinfo.mem_unit),
totalVM = sinfo.totalswap / (MB/sinfo.mem_unit),
freeVM  = sinfo.freeswap  / (MB/sinfo.mem_unit);


(although sinfo.totalram*sinfo.mem_unit/MB is probably more intuitive?)

--
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