[Bug bootstrap/96794] --with-build-config=bootstrap-lto-lean with --enable-link-mutex leads to poor LTRANS utilization

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96794

--- Comment #8 from Martin Liška <marxin at gcc dot gnu.org> ---
There's graph when omitting link mutex:
https://gist.githubusercontent.com/marxin/223890df4d8d8e490b6b2918b77dacad/raw/24409fcf099230dbc19ef50e193655c578d6d527/gcc-10-without-mutex-lock.svg

As seen, memory peak is slightly more than 12GB.