Recently I checked Profile-Guided Optimization (PGO) improvements on multiple projects. The results are available here. I also have several examples of applying PGO to the software like ctags:
That's why I think trying to optimize ctags with PGO can be a good idea.
I can suggest the following action points:
Perform PGO benchmarks on ctags. And if it shows improvements - add a note to the documentation about possible improvements in ctags performance with PGO.
Providing an easier way (e.g. an additional build option) to build scripts with PGO can be helpful for the end-users and maintainers since they will be able to optimize ctags according to their workloads.
Optimize pre-built binaries (if it's possible to prepare a good training workload)
Testing Post-Link Optimization techniques (like LLVM BOLT) would be interesting too (Clang and Rustc already use BOLT as an addition to PGO) but I recommend starting from the usual PGO.
Here are some examples of how PGO optimization is integrated in other projects:
masatake
commented
6 months ago
Hi!
Recently I checked Profile-Guided Optimization (PGO) improvements on multiple projects. The results are available here. I also have several examples of applying PGO to the software like
ctags:That's why I think trying to optimize ctags with PGO can be a good idea.
I can suggest the following action points:
Testing Post-Link Optimization techniques (like LLVM BOLT) would be interesting too (Clang and Rustc already use BOLT as an addition to PGO) but I recommend starting from the usual PGO.
Here are some examples of how PGO optimization is integrated in other projects:
configurescript