[PATCH] D147493: [ELF] Cap parallel::strategy to 8 cores when --threads= is unspecified

[Peter Smith via Phabricator via llvm-commits]

peter.smith added a comment.

I have run a limited experiment linking clang on a 64 core AArch64 machine. Results seem to be similar to x86_64. No benefit seen linking clang past 8 threads. On the machine I had access to I was very limited in disk space so I couldn't check the debug build. From prior experience debug builds seems to benefit more from more threads as there is quite a lot of data to write out in the most parallel part of LLD.


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