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Silent when optput is requested and prettyfing. #2

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Nov 6, 2015
+35 −21
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Silent when optput is requested and prettyfing. #2

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56 changes: 35 additions & 21 deletions memory.m
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
## Copyright (C) 2012 - 2015 Markus Bergholz <[email protected]>
##
## Copyright (C) 2015 JuanPi Carbajal <[email protected]>

## This program is free software; you can redistribute it and/or modify it under
## the terms of the GNU General Public License as published by the Free Software
## Foundation; either version 3 of the License, or (at your option) any later
Expand All @@ -20,33 +21,46 @@
## memory is available and how much is currently being
## used by Octave

function memory()
function m = memory()

if isunix
# open /proc/meminfo
meminfo = fopen("/proc/meminfo", "r");

# open /proc/meminfo
meminfo = fopen ("/proc/meminfo", "r");
PID = getpid;
total = str2double(cell2mat(cell2mat(regexp(fread(meminfo, "char=>char").', "MemTotal:(.*?) kB\n", "tokens"))));
fclose(meminfo);
total = str2double ( ...
cell2mat (cell2mat ( ...
regexp( ...
fread(meminfo, "char=>char").', ...
"MemTotal:(.*?) kB\n", "tokens"))));

fclose (meminfo);


# open /proc/<pid>/statm
statm = fopen(sprintf("/proc/%d/statm", PID), "r");
statm = fopen (sprintf ("/proc/%d/statm", PID), "r");
# statm is measured in pages. the pagesize is 4096 bytes
mem = sscanf(fread(statm, "char=>char").', "%d ")'([1 2 3 6]) * 4 / 1024;
fclose(statm);

# print verbose output
fprintf("\n Total memory usage by GNU Octave (VmSize): \t %g MB", mem(1))
fprintf("\n RSS Size: \t\t\t\t\t %g MB", mem(2))
fprintf("\n shared pages: \t\t\t\t\t %g MB", mem(3))
fprintf("\n data + stack size: \t\t\t\t %g MB", mem(4))
fprintf("\n Physical Memory (RAM): \t\t\t %g MB\n\n", total/1024)
mem = sscanf ( ...
fread (statm, "char=>char").', ...
"%d ").'([1 2 3 6]) * 4 / 1024;
fclose (statm);

else
error("Function MEMORY is not available on this platform.")
if (nargout < 1)
# print verbose output
fprintf (["\n Total memory usage by \
GNU Octave (VmSize): \t %g MB"], mem(1));
fprintf ("\n RSS Size: \t\t\t\t\t %g MB", mem(2));
fprintf ("\n shared pages: \t\t\t\t\t %g MB", mem(3));
fprintf ("\n data + stack size: \t\t\t\t %g MB", mem(4));
fprintf ("\n Physical Memory (RAM): \
\t\t\t %g MB\n\n", total/1024);
fflush (stdout);
endif

m = struct ("total",mem(1),"rss",mem(2), ...
"shared",mem(3),"data",mem(4), ...
"physical", total/1024);
else
error ("Function MEMORY is not available on this platform.");
endif
endfunction

endfunction