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Although we expect some small discrepancies for very large counts, we seem to be able to count up to 64 billion instructions without too much skew, so do so. Also switch to using decimals for the instruction counts. This just makes it easier to visually compare the expected vs actual values, as well as the raw result from instructions. Before: instructions: result 68719476753 running/enabled 13101961654 cycles: result 38077343785 running/enabled 13101725752 Looped for 68719476736 instructions, overhead 17 Expected 68719476753 Actual 68719476753 Delta 0, 0.000000% success: count_instructions After: instructions: result 64000000016 running/enabled 12197599964 cycles: result 35412471674 running/enabled 12197534110 Looped for 64000000000 instructions, overhead 16 Expected 64000000016 Actual 64000000016 Delta 0, 0.000000% success: count_instructions Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> |
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