#3629: Code compiled WITHOUT profiling many times slower than compiled WITH
profiling on
---------------------------------+------------------------------------------
Reporter: gchrupala | Owner:
Type: bug | Status: new
Priority: normal | Milestone: 6.12 branch
Component: Compiler | Version: 6.13
Keywords: | Difficulty: Unknown
Os: Unknown/Multiple | Testcase:
Architecture: Unknown/Multiple | Failure: None/Unknown
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Comment(by simonmar):
We suggest trying the following (with both 6.10.4 and 6.13) to see if they
make any difference:
* `-fno-state-hack` (see #1168)
* `-fno-cse`
* `-fno-full-laziness`
all 3 of these "optimizations" can introduce slowdowns as well as
speedups, so it may be that this program is an example of that.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3629#comment:6>
GHC <http://www.haskell.org/ghc/>
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