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Amdahl/Case Rule: A balanced computer system needs about 1 MB of main memory capacity and 1 megabit per second of I/O bandwidth per MIPS of CPU performance.
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90/10 Locality Rule: A program executes about 90% of its instructions in 10% of its code.
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Bandwidth Rule: Bandwidth grows by at least the square of the improvement in latency.
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2:1 Cache Rule: The miss rate of a direct-mapped cache of size N is about the same as a two-way set- associative cache of size N/2.
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Dependability Rule: Design with no single point of failure.
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Watt-Year Rule: The fully burdened cost of a Watt per year in a Warehouse Scale Computer in North America in 2011, including the cost of amortizing the power and cooling infrastructure, is about $2.
![Screenshot 2024-01-10 at 1 08 24 AM](https://private-user-images.githubusercontent.com/67067729/295464701-bc4eee32-da89-4957-9c46-5ebbcdfe63ba.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJnaXRodWIuY29tIiwiYXVkIjoicmF3LmdpdGh1YnVzZXJjb250ZW50LmNvbSIsImtleSI6ImtleTUiLCJleHAiOjE3MTk3NTM4NTQsIm5iZiI6MTcxOTc1MzU1NCwicGF0aCI6Ii82NzA2NzcyOS8yOTU0NjQ3MDEtYmM0ZWVlMzItZGE4OS00OTU3LTljNDYtNWViYmNkZmU2M2JhLnBuZz9YLUFtei1BbGdvcml0aG09QVdTNC1ITUFDLVNIQTI1NiZYLUFtei1DcmVkZW50aWFsPUFLSUFWQ09EWUxTQTUzUFFLNFpBJTJGMjAyNDA2MzAlMkZ1cy1lYXN0LTElMkZzMyUyRmF3czRfcmVxdWVzdCZYLUFtei1EYXRlPTIwMjQwNjMwVDEzMTkxNFomWC1BbXotRXhwaXJlcz0zMDAmWC1BbXotU2lnbmF0dXJlPTM2MzU3MWYyZjE4MGFlOTA1MDYyZTc3NTkwYTk0N2MwNDM5M2Q2ZmE1OWE0MjVhYWU5NDdkMDRlZTM1ZDBjMjkmWC1BbXotU2lnbmVkSGVhZGVycz1ob3N0JmFjdG9yX2lkPTAma2V5X2lkPTAmcmVwb19pZD0wIn0.qMC43YnqkLXnwG-bX9wSv2MyeUU2f9_Dr-3MACuRDEU)