Add prefetch to core
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Assessment
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Newbie friendliness
- 35/100
Research direction
Start with boost/context/detail/prefetch.hpp from the linked Boost 1.81 source, then locate the corresponding Boost.Histogram implementation and current uses in context and fiber. Confirm how the existing copies are integrated before moving the shared implementation into Boost.Core. Done means context, fiber, and Histogram use the Core-provided prefetch command without duplicate implementations.
Written by the indexing model from the issue text.
Description
We are currently implementing a new algorithm in Boost.Histogram which is supposed to profit from cacheline prefetching. The prefetch instruction is a builtin, so we need code to get a platform-independent Boost command. I discovered that Boost.Context already has such an implementation in its details.
https://www.boost.org/doc/libs/1_81_0/boost/context/detail/prefetch.hpp
I propose to move this code to Core, so that all libraries can profit from prefetching. Currently, context and fiber use this code, and it is currently added to Boost.Histogram.
- Dominant language
- C++
- Stars
- 156
- Forks
- 116
- PR merge metrics
- No merged PRs in 30d
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