GHC 7.10 complie time regression

[Simon Peyton Jones]

kazu

no it's not expected to take "much longer".  Can you make a ticket with a reproducible test case?

Thanks!

Simon

| -----Original Message-----
| From: ghc-devs [mailto:ghc-devs-bounces at haskell.org] On Behalf Of Kazu
| Yamamoto
| Sent: 27 August 2015 02:24
| To: ghc-devs at haskell.org
| Subject: GHC 7.10 complie time regression
| 
| Hi,
| 
| I found that the compile time of GHC 7.10 against specific packages
| gets much longer than previous versions. Here is example:
| 
| 	https://travis-ci.org/kazu-yamamoto/iproute/builds/77427248
| 
| On my local MacBook Air, I see the same phenomena:
| 
| 	GHC 7.8:  cabal build   8.81s user 0.94s system 103% cpu  9.430
| total
| 	GHC 7.10: cabal build  37.86s user 3.49s system  98% cpu 42.066
| total
| 
| Is this known regression?
| 
| --Kazu
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