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authorTianhao Wang <wth@riseup.net>2023-11-02 01:14:25 +0100
committerTianhao Wang <wth@riseup.net>2023-11-02 01:14:25 +0100
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+This is a toy program to play with cache line alignment.
+
+The program iterates over a 2D array and modify the elements, and record
+the time it takes for the traversal.
+Each array row has a tailing padding of OFF*4 bytes (i.e. OFF x sizeof(int)).
+The padding elements are NOT traversed, they are only there to make the array
+misaligned.
+
+The makefile builds 17x binaries with OFF = 0...16. The testall.sh script
+runs each of them 100 times and print the averaged output.
+
+Build:
+$make
+
+run:
+$sh testall.sh
+
+
+Play around: change the demensions of the array and the loop operations.