Get available memory from Windows 7 64bits - and fast
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Background: I run performance test on reading HDF5-files. The spread in the results are large and I cannot understand why. Now, I try to figure out if HDF5 has a huge hidden cache in memory. Slow reading is correlated with low cpu load and vice versa. Now I plot "memory use" during reading together with other quantities. I guess I cannot read "disk access intensity".
Execution of the function, memory, takes 0.04 seconds per call.
[ ~, system_view ] = memory;
timing( 5, jj ) = system_view.PhysicalMemory.Available;
Making a DOS-call to systeminfo is also slow.
Question: Is there a fast way to get "current memory use" by both Matlab and HDF5?
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