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Commentary: InstrCountVisitor documentation (#3457)

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Signed-off-by: huanghuang.zhou <huanghuang.zhou@terapines.com>
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Huanghuang Zhou 2022-05-31 19:10:58 +08:00 committed by GitHub
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docs/CONTRIBUTORS
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@ -35,6 +35,7 @@ Guokai Chen
Harald Heckmann
Howard Su
Huang Rui
Huanghuang Zhou
HungMingWu
HyungKi Jeong
Iru Cai

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docs/internals.rst
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@ -274,7 +274,7 @@ path through the graph is the sum of macro-task execution costs. Sarkar
does almost the same thing, except that he has nonzero estimates for
synchronization costs.
Verilator's cost estimates are assigned by ``InstrCountCostVisitor``. This
Verilator's cost estimates are assigned by ``InstrCountVisitor``. This
class is perhaps the most fragile piece of the multithread
implementation. It's easy to have a bug where you count something cheap
(eg. accessing one element of a huge array) as if it were expensive (eg.