On 06/03/14 09:50, Johan Tibell wrote:
Hi,
I'd like to set up a performance build bot for GHC, but before I can do that I need a script that reliably builds GHC and runs nofib. Do we have such a script? Here's a strawman proposal for one:
cabal install happy alex git clone git://git.haskell.org/ghc.git http://git.haskell.org/ghc.git cd ghc ./sync-all --nofib get perl boot
./boot
./configure make cd nofib make clean make boot make -k mode=slow
Questions:
* Does this look sensible? * Is there a way to only build and run a subset of the benchmarks? * Are there any tweaks to mk/build.mk http://build.mk we can do to make the build faster without compromising the results?
Turn down the stage2 optimisation, and turn off the docs: GhcStage2HcOpts = -O HADDOCK_DOCS = NO BUILD_DOCBOOK_HTML = NO BUILD_DOCBOOK_PS = NO BUILD_DOCBOOK_PDF = NO
* Is there a way to do this in a cheap throwaway VM like travis-ci does? Could such a VM already provide GHC and the required libs to make the whole thing hermetic?
Sure. I occasionally use EC2 for GHC hacking and I had a VM set up with all the tools ready to work on GHC. (but I assume you mean a local VM; EC2 is not good for perf measurements) Cheers, Simon