王潇-从Linux优化角度探索RISCV性能与兼容性的平衡.pdf

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1、Explore the Balance between Perf and Compatibility in RISCV Linux Legal Notices and DisclaimersStatements in this document that refer to future plans or expectations are forward-looking statements.These statements are based on current expectations and involve many risks and uncertainties that could

2、cause actual results to differ materially from those expressed or implied in such statements.For more information on the factors that could cause actual results to differ materially,see our most recent earnings release and SEC filings at .All product plans and roadmaps are subject to change without

3、notice.Any forecasts of goods and services needed for Intels operations are provided for discussion purposes only.Intel will have no liability to make any purchase in connection with forecasts published in this document.Code names are often used by Intel to identify products,technologies,or services

4、 that are in development and usage may change over time.No license(express or implied,by estoppel or otherwise)to any intellectual property rights is granted by this document.Intel Corporation.Intel,the Intel logo,and other Intel marks are trademarks of Intel Corporation or its subsidiaries.Other na

5、mes and brands may be claimed as the property of others.This document contains information on products and/or processes in development.Agenda Intro of riscv modularized ISA design Challenge of Linux lib optimization on riscvALTERNATIVE:A dynamic code patching design riscv lib optimization status fut

6、ure work Address the user level SW compatibility glibc ifunc binary translation A new BT mode Summary3RISCV modularized ISA design A shared general RISC ISA(i+m+a+f+d)Enough for Linux with csr+ifence Then,free customization according to your taste!Open vs fragmentation4The challenges posted to Linux