Regression in 1.7.1 (compared to 1.6.5) in getPackageFiles RAM usage #4027
Description
General summary/comments (optional)
If I run "stack build" with 1.7.1 on one of our projects, it grows up to 16GB upon the getPackageFiles step. Doesn't happen on another proj which shares most of deps but not all. Doesn't happen on 1.6.5.
Possibly related: #1235
Bisect results:
acb196788948bab7a01e13cddf6e6cd5b5bf93a0 is the first bad commit
commit acb196788948bab7a01e13cddf6e6cd5b5bf93a0
Author: Emanuel Borsboom <[email protected]>
Date: Wed Dec 27 15:04:05 2017 -0800
setup: improvements to selecting bindists on Linux
These changes are motivated by #3636.
* `stack setup` looks for GHC bindists and installations by any OS key
that is compatible (rather than only checking a single one). This is
relevant on Linux where different distributions may have different
combinations of libtinfo 5/6, ncurses 5/6, and gmp 4/5, and will allow
simpifying the setup-info metadata YAML for future GHC releases.
* `stack setup` no longer uses different GHC configure options on Linux
distributions that use GCC with PIE enabled by default. GHC detects
this itself since ghc-8.0.2, and Stack's attempted workaround for older
versions caused more problems than it solved.
:100644 100644 5c2e93fe50a2b6b3a1b61ba3c20d22177000f2c7 1667e4507cf6465eb685127d60402ffd25322066 M ChangeLog.md
:040000 040000 0a6a8aa14860157aa6c741d147d36924c098b628 14217e82bc4da2a9aac1a3f9f75e12fdbd003d1e M src