[Bug tree-optimization/92924] [10 regression] reproducible indirect call profile merging causes 80% slowdown in Firefox pref-reftest-singletons id-getter microbenchmarks

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92924

--- Comment #25 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
I wonder if that is because of parallel updates. There is quite a lot of time
between prunning and streaming out. If Firefox forks while other threads are
running, it will mess up the streamed data quite badly. Is there way to stop
other threads?