I have recently started to question the value of having the eventlog as a configurable option. It's an incredibly useful tool with little to no cost and the observability that is enables is something that is increasingly expected by users. In general I wonder whether it wouldn't be best to : * drop the `_l` RTS ways, and * enable `TRACING` in the remaining ways * deprecate the `-eventlog` compiler flag This would bring a few benefits: * users wouldn't need to opt-in to eventlogging * binary distributions get a bit smaller * we can drop a bit of build system complexity The only cost is that all Haskell executables get larger by around 400kB: ``` -rw-r--r-- 1 ben users 6.2M Nov 12 09:55 _build/stage1/rts/build/libHSrts-1.0.a -rw-r--r-- 1 ben users 6.6M Nov 12 09:55 _build/stage1/rts/build/libHSrts-1.0_l.a -rwxr-xr-x 1 ben users 3.5M Nov 12 09:55 _build/stage1/rts/build/libHSrts-1.0-ghc9.1.0.20201111.so -rwxr-xr-x 1 ben users 3.9M Nov 12 09:55 _build/stage1/rts/build/libHSrts-1.0_l-ghc9.1.0.20201111.so ``` In the age of terabytes of storage, this seems like a reasonable trade-off. Thoughts?