Debugging Performance with llvm-mca: Simulating CPU Execution
By
signa11
Pure flour-power. Hearty enough to carry you through lunch.
Summary
The article discusses using llvm-mca, a performance analysis tool, to debug performance issues by simulating machine code execution on a specific CPU.
Key quotes
· 3 pulledllvm-mca is a performance analysis tool that uses information available in LLVM to statically measure the performance of machine code in a specific CPU.
You feed it some instructions and it simulates how the CPU executes those instructions.
We debug our performance problem by simulating it with llvm-mca!
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