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Performance

Amdahl's Law

Diminishing Returns.

The article

If

Optimizing a small part of a system has no impact if the bottleneck is elsewhere.

Then

Find the 1% of the code that takes 90% of the time. Only optimize that. Ignore the rest.

Unless

Theory of Constraints

Source

Gene Amdahl, Validity of the Single Processor Approach to Achieving Large Scale Computing Capabilities (AFIPS, 1967).

Go to the source

See also