10 Apr
2017
10 Apr
'17
4:39 p.m.
* Compiler performance: do you have any numbers to quantify what 8.0 vs 8.2 is likely to look like?
I'm afraid the best I can provide at the moment is [1]. On closer inspection of these I'm a bit suspicious of the 8.0 numbers; I'll try to reproduce them (and characterize the current ghc-8.2 branch, which fixes a significant memory leak present in -rc1) shortly. That being said, there were a few major fixes in 8.2.
I'm not sure how to interpret these numbers. Looking at the compile time section, it seems to report an average 81% *increase* in compilation time, but compared to what - ghc-8.0 or ghc-7.4?