BOLT: A Practical Binary Optimizer for Data Centers and Beyond - Facebook Research

In this paper, we present BOLT, a post-link optimizer built on top of the LLVM framework. Utilizing sample-based profiling, BOLT boosts the performance of real-world applications even for highly optimized binaries built with both feedback-driven optimizations (FDO) and link-time optimizations (LTO).

We evaluated BOLT on both Facebook data-center workloads and open-source compilers. For datacenter applications, BOLT achieves up to 7.0% performance ...

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