#2002: problems with very large (list) literals
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Reporter: Isaac Dupree | Owner:
Type: compile-time performance bug | Status: new
Priority: high | Milestone: 6.8.3
Component: Compiler | Version: 6.8.2
Severity: normal | Resolution:
Keywords: | Difficulty: Unknown
Testcase: | Architecture: x86
Os: Linux |
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Comment (by guest):
I also had experiences with large literal lists. The source files were
about 300k-500k, the list sizes are probably somewhere in the 20000-30000
range (definitely less than 100000). I used both 6.6.1 and 6.8.2, both
takes incredibly long time (10 minutes is not unheard of, on a 2ghz
machine with 768mb ram), and sometimes fails spontaneously (usually memory
allocation problems, if I recall it correctly).
I should note though that a significant part of the compilation time is
spent by gcc, not ghc (no idea about the exact ratio).
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2002#comment:4>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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