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function [memStats] = linMem()
if ~isunix
memStats.error = true;
return
end
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[sts,msg] = unix('free -m | grep Mem:');
if sts %error
memStats.error = true;
return
else %no error
mems = cell2mat(textscan(msg,'%*s %u %u %u %*u %*u %*u','delimiter',' ','collectoutput',true,'multipleDelimsAsOne',true));
memStats.freeMB = mems(3);
memStats.usedMB = mems(2);
memStats.totalMB = mems(1);
memStats.error = false;
end
tmp= java.lang.Runtime.getRuntime.maxMemory;
disp( ['Max available memory:' num2str(tmp /1024^2 , '%3.5f
') 'MB' ] );
tmp= java.lang.Runtime.getRuntime.totalMemory;
disp( ['Already Used:' num2str(tmp/1024^2 , '%3.5f
') 'MB' ] );
end %function
matlab double 8B
a=zeros(1024,1024,1024);
8192MB.
不要看mat文件，这个有压缩
用whos查看， *8/1024/1024为所占用MB
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