Open-source developer Rui Ueyama who is the lead developer of the Mold high performance linker and previously on the LLVM lld linker has written a detailed mailing list post that highlights some observed performance bottlenecks within the Linux kernel. In developing the high speed Mold linker that sharply outperforms the GNU and LLVM linkers, Rui has noticed some areas of the Linux kernel becoming a bottleneck for the linker. The hope is these areas could be improved upon within the Linux kernel...