Re: Liberalising IncoherentInstances

2013-07-30 Thread AntC
Axel Simon Axel.Simon at in.tum.de writes: ... In recent years I acquired the view that type inferences should have some sort of semantic completeness property ... If you want 'semantic completeness', don't use IncoherentInstances. (As several have said, it's not a popular extension;

Call for talks: Haskell Implementors Workshop 2013, Sept 22, Boston

2013-07-30 Thread Ryan Newton
Please pass on this announcement! The deadline is in two weeks.* * * * * Call for Talks* ACM SIGPLAN Haskell Implementors' Workshop http://haskell.org/haskellwiki/HaskellImplementorsWorkshop/2013 Boston, USA, September 22th, 2013

Threadscope reporting that nothing is happening (MUT or GC) for ~2 seconds

2013-07-30 Thread Patrick Palka
Hi, I'm analyzing the performance of my parallel --make branch of GHC ( https://github.com/parcs/ghc/tree/cherry-picking if anyone is interested) by compiling the Cabal repository in parallel, using two capabilities. I'm seeing very strange results from Threadscope: at some point during the

Re: Threadscope reporting that nothing is happening (MUT or GC) for ~2 seconds

2013-07-30 Thread Patrick Palka
Mystery solved -- the gap is likely the RTS waiting on an external process (the linker) to exit. On Tue, Jul 30, 2013 at 3:34 PM, Patrick Palka patr...@parcs.ath.cx wrote: Hi, I'm analyzing the performance of my parallel --make branch of GHC (