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Re: [GHC] #7373: When building GHC: Failed to load interface for `GHC.Fingerprint'
by GHC 12 Apr '13

12 Apr '13

#7373: When building GHC: Failed to load interface for `GHC.Fingerprint' ---------------------------------+------------------------------------------ Reporter: igloo | Owner: igloo Type: bug | Status: new Priority: normal | Milestone: 7.8.1 Component: libraries/base | Version: 7.6.1 Keywords: | Os: Unknown/Multiple Architecture: Unknown/Multiple | Failure: None/Unknown Difficulty: Unknown | Testcase: Blockedby: | Blocking: Related: | ---------------------------------+------------------------------------------ Changes (by igloo): * owner: => igloo * milestone: => 7.8.1 -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7373#comment:2> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7367: Optimiser / Linker Problem on amd64
by GHC 12 Apr '13

12 Apr '13

#7367: Optimiser / Linker Problem on amd64 -------------------------------+-------------------------------------------- Reporter: wurmli | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.8.1 Component: Build System | Version: 7.6.1 Keywords: | Os: Linux Architecture: x86_64 (amd64) | Failure: Runtime performance bug Difficulty: Unknown | Testcase: Blockedby: | Blocking: Related: | -------------------------------+-------------------------------------------- Changes (by igloo): * milestone: => 7.8.1 Comment: It looks like the "bytes allocated in the heap" dramatically increased between 7.4 and 7.6: {{{ $ ghc-7.4.1 --make -O q -XBangPatterns -threaded -rtsopts [1 of 1] Compiling Main ( q.hs, q.o ) Linking q ... $ time ./q 12 +RTS -N4 -s 3968050 Pfannkuchen(12) = 65 88,592 bytes allocated in the heap 6,040 bytes copied during GC 46,928 bytes maximum residency (1 sample(s)) 43,184 bytes maximum slop 4 MB total memory in use (1 MB lost due to fragmentation) Tot time (elapsed) Avg pause Max pause Gen 0 0 colls, 0 par 0.00s 0.00s 0.0000s 0.0000s Gen 1 1 colls, 0 par 0.00s 0.00s 0.0002s 0.0002s Parallel GC work balance: -nan (0 / 0, ideal 4) MUT time (elapsed) GC time (elapsed) Task 0 (worker) : 78.76s ( 20.00s) 0.00s ( 0.00s) Task 1 (worker) : 78.76s ( 20.00s) 0.00s ( 0.00s) Task 2 (bound) : 78.75s ( 20.00s) 0.00s ( 0.00s) Task 3 (worker) : 78.76s ( 20.00s) 0.00s ( 0.00s) Task 4 (worker) : 78.75s ( 20.00s) 0.00s ( 0.00s) Task 5 (worker) : 78.76s ( 20.00s) 0.00s ( 0.00s) SPARKS: 0 (0 converted, 0 overflowed, 0 dud, 0 GC'd, 0 fizzled) INIT time 0.00s ( 0.00s elapsed) MUT time 78.75s ( 20.00s elapsed) GC time 0.00s ( 0.00s elapsed) EXIT time 0.00s ( 0.00s elapsed) Total time 78.76s ( 20.00s elapsed) Alloc rate 1,124 bytes per MUT second Productivity 100.0% of total user, 393.9% of total elapsed gc_alloc_block_sync: 0 whitehole_spin: 0 gen[0].sync: 0 gen[1].sync: 0 ./q 12 +RTS -N4 -s 78.76s user 0.00s system 393% cpu 19.998 total }}} {{{ $ ghc-7.6.2 --make -O q -XBangPatterns -threaded -rtsopts [1 of 1] Compiling Main ( q.hs, q.o ) Linking q ... $ time ./q 12 +RTS -N4 -s 3968050 Pfannkuchen(12) = 65 10,538,123,264 bytes allocated in the heap 390,688 bytes copied during GC 46,856 bytes maximum residency (2 sample(s)) 51,448 bytes maximum slop 3 MB total memory in use (0 MB lost due to fragmentation) Tot time (elapsed) Avg pause Max pause Gen 0 5843 colls, 5843 par 28.64s 0.38s 0.0001s 0.0131s Gen 1 2 colls, 1 par 0.00s 0.00s 0.0002s 0.0002s Parallel GC work balance: 61.48% (serial 0%, perfect 100%) TASKS: 6 (1 bound, 5 peak workers (5 total), using -N4) SPARKS: 0 (0 converted, 0 overflowed, 0 dud, 0 GC'd, 0 fizzled) INIT time 0.00s ( 0.00s elapsed) MUT time 54.57s ( 20.89s elapsed) GC time 28.64s ( 0.38s elapsed) EXIT time 0.00s ( 0.00s elapsed) Total time 83.21s ( 21.27s elapsed) Alloc rate 193,121,729 bytes per MUT second Productivity 65.6% of total user, 256.6% of total elapsed gc_alloc_block_sync: 28902 whitehole_spin: 0 gen[0].sync: 0 gen[1].sync: 0 ./q 12 +RTS -N4 -s 83.21s user 0.18s system 392% cpu 21.272 total }}} -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7367#comment:2> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7363: runghc leaks space in IO
by GHC 12 Apr '13

12 Apr '13

#7363: runghc leaks space in IO -------------------------------+-------------------------------------------- Reporter: Jafet | Owner: igloo Type: bug | Status: new Priority: normal | Milestone: 7.8.1 Component: None | Version: 7.6.1 Keywords: | Os: Unknown/Multiple Architecture: x86_64 (amd64) | Failure: Runtime performance bug Difficulty: Unknown | Testcase: Blockedby: | Blocking: Related: | -------------------------------+-------------------------------------------- Changes (by igloo): * owner: => igloo * difficulty: => Unknown * milestone: => 7.8.1 Comment: Thanks for the report. That sounds odd; I'll take a look. -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7363#comment:1> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7362: GHC generated DLL does not work on Windows XP/Server 2003
by GHC 12 Apr '13

12 Apr '13

#7362: GHC generated DLL does not work on Windows XP/Server 2003 ------------------------------+--------------------------------------------- Reporter: Michael Marte | Owner: Type: bug | Status: infoneeded Priority: normal | Milestone: 7.8.1 Component: Build System | Version: 7.4.1 Keywords: | Os: Windows Architecture: x86 | Failure: Other Difficulty: Unknown | Testcase: Blockedby: | Blocking: Related: | ------------------------------+--------------------------------------------- Changes (by igloo): * status: new => infoneeded * difficulty: => Unknown * milestone: => 7.8.1 Comment: Can you give us complete source and compilation instructions to reproduce this please? -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7362#comment:1> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7346: Allow the use of `deriving` for GHC generics
by GHC 12 Apr '13

12 Apr '13

#7346: Allow the use of `deriving` for GHC generics ---------------------------------+------------------------------------------ Reporter: kosmikus | Owner: dreixel Type: feature request | Status: new Priority: normal | Milestone: 7.8.1 Component: Compiler | Version: 7.7 Keywords: | Os: Unknown/Multiple Architecture: Unknown/Multiple | Failure: None/Unknown Difficulty: Unknown | Testcase: Blockedby: | Blocking: Related: | ---------------------------------+------------------------------------------ Changes (by igloo): * milestone: => 7.8.1 -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7346#comment:9> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7261: ghci's :info and :browse break encapsulation
by GHC 12 Apr '13

12 Apr '13

#7261: ghci's :info and :browse break encapsulation ---------------------------------+------------------------------------------ Reporter: Feuerbach | Owner: Type: feature request | Status: new Priority: normal | Milestone: _|_ Component: GHCi | Version: 7.6.1 Keywords: | Os: Unknown/Multiple Architecture: Unknown/Multiple | Failure: Other Difficulty: Unknown | Testcase: Blockedby: | Blocking: Related: | ---------------------------------+------------------------------------------ Comment(by igloo): Ah, I see. That's documented in the user's guide here: http://www.haskell.org/ghc/docs/latest/html/users_guide/interactive- evaluation.html#ghci-import-qualified http://www.haskell.org/ghc/docs/latest/html/users_guide/ghci- invocation.html#id486684 -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7261#comment:6> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7345: unix-2.6.0.0 does not provide access to st_blksize and st_blocks
by GHC 12 Apr '13

12 Apr '13

#7345: unix-2.6.0.0 does not provide access to st_blksize and st_blocks -------------------------------+-------------------------------------------- Reporter: JohnWiegley | Owner: Type: bug | Status: closed Priority: normal | Milestone: Component: libraries/unix | Version: 7.6.1 Resolution: wontfix | Keywords: Os: Unknown/Multiple | Architecture: Unknown/Multiple Failure: Other | Difficulty: Unknown Testcase: | Blockedby: Blocking: | Related: -------------------------------+-------------------------------------------- Changes (by igloo): * status: new => closed * difficulty: => Unknown * resolution: => wontfix Comment: Thanks for the suggestion. However, library API changes need to be discussed on the libraries list first, and then a ticket opened once consensus is reached; please see http://www.haskell.org/haskellwiki/Library_submissions for details. -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7345#comment:1> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7337: GHC does not generate great code for bit-level rotation
by GHC 12 Apr '13

12 Apr '13

#7337: GHC does not generate great code for bit-level rotation ---------------------------------+------------------------------------------ Reporter: bos | Owner: Type: feature request | Status: new Priority: normal | Milestone: 7.8.1 Component: Compiler | Version: 7.6.1 Keywords: | Os: Unknown/Multiple Architecture: Unknown/Multiple | Failure: None/Unknown Difficulty: Unknown | Testcase: Blockedby: | Blocking: Related: | ---------------------------------+------------------------------------------ Changes (by igloo): * difficulty: => Unknown * milestone: => 7.8.1 Comment: Thanks for the report. -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7337#comment:1> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7335: Need for extra warning pragma for accidental pattern matching in do blocks
by GHC 12 Apr '13

12 Apr '13

#7335: Need for extra warning pragma for accidental pattern matching in do blocks ---------------------------------+------------------------------------------ Reporter: duncan | Owner: Type: feature request | Status: new Priority: normal | Milestone: 7.8.1 Component: Compiler | Version: 7.6.1 Keywords: | Os: Unknown/Multiple Architecture: Unknown/Multiple | Failure: None/Unknown Difficulty: Unknown | Testcase: Blockedby: | Blocking: Related: | ---------------------------------+------------------------------------------ Changes (by igloo): * difficulty: => Unknown * milestone: => 7.8.1 -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7335#comment:1> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7261: ghci's :info and :browse break encapsulation
by GHC 12 Apr '13

12 Apr '13

#7261: ghci's :info and :browse break encapsulation ---------------------------------+------------------------------------------ Reporter: Feuerbach | Owner: Type: feature request | Status: new Priority: normal | Milestone: _|_ Component: GHCi | Version: 7.6.1 Keywords: | Os: Unknown/Multiple Architecture: Unknown/Multiple | Failure: Other Difficulty: Unknown | Testcase: Blockedby: | Blocking: Related: | ---------------------------------+------------------------------------------ Comment(by Feuerbach): Sorry, I wasn't clear. I am puzzled by the fact that in a bare ghci session, without importing any additional modules except Prelude, 1) The type `IO` is available under the name `GHC.IO.IO` 2) The data constructor `GHC.IO.IO` is in scope In ordinary Haskell, you'd need to `import GHC.IO` for that to be the case. Hence my question. -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7261#comment:5> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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