cs249r_book

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Vijay Janapa Reddi 12e8697b50 fix: add citation for power consumption claim and introduce DVFS properly

Thanks to @formlsysbookissue for reporting this issue.

- Added citation [@barroso2022datacenter] to support the claim that memory-bound inference tasks can consume up to 60% of total system power on data movement
- Introduced Dynamic Voltage and Frequency Scaling (DVFS) with proper explanation before its first mention
- Added smooth transition explaining DVFS as a power management technique that adjusts processor voltage and clock frequency based on workload demands
- Maintained academic tone and technical accuracy while improving content flow

Addresses #944

2025-08-23 23:32:15 +02:00