{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9851774","patent":{"patent_number":"US-9851774","title":"Method and apparatus for dynamic clock and voltage scaling in a computer processor based on program phase","assignee":null,"inventors":[],"filing_date":"2016-01-04T00:00:00.000Z","publication_date":"2017-12-26T00:00:00.000Z","cpc_codes":["G06F","G06F","G06F","G06F"],"num_claims":29,"abstract":"The disclosure generally relates to dynamic clock and voltage scaling (DCVS) based on program phase. For example, during each program phase, a first hardware counter may count each cycle where a dispatch stall occurs and an oldest instruction in a load queue is a last-level cache miss, a second hardware counter may count total cycles, and a third hardware counter may count committed instructions. Accordingly, a software/firmware mechanism may read the various hardware counters once the committed instruction counter reaches a threshold value and divide a value of the first hardware counter by a value of the second hardware counter to measure a stall fraction during a current program execution phase. The measured stall fraction can then be used to predict a stall fraction in a next program execution phase such that optimal voltage and frequency settings can be applied in the next phase based on the predicted stall fraction."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and apparatus for dynamic clock and voltage scaling in a computer processor based on program phase","description":"The disclosure generally relates to dynamic clock and voltage scaling (DCVS) based on program phase. For example, during each program phase, a first hardware counter may count each cycle where a dispa","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9851774","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9851774","citation_suggestion":"Patentable. \"Method and apparatus for dynamic clock and voltage scaling in a computer processor based on program phase\" (US-9851774). https://patentable.app/patents/US-9851774","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9851774","json":"https://patentable.app/api/llm-context/US-9851774","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T08:59:04.229Z"}