[GHC] #13739: Very slow linking of profiled executables
GHC
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Mon Jun 12 23:35:38 UTC 2017
#13739: Very slow linking of profiled executables
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Reporter: duog | Owner: (none)
Type: bug | Status: new
Priority: high | Milestone: 8.2.1
Component: Compiler | Version: 8.2.1-rc2
Resolution: | Keywords:
Operating System: Linux | Architecture: x86_64
Type of failure: Compile-time | (amd64)
performance bug | Test Case:
Blocked By: | Blocking:
Related Tickets: | Differential Rev(s):
Wiki Page: |
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Comment (by duog):
I've attached timings with 3 versions of ld obtained from
[http://ftp.gnu.org/gnu/binutils/].
These show that 2.27 fixes the issue we're running into. Still much slower
than 8.0.2 though.
I would also note that I find the very large file sizes of 8.2.1-no-gc-
sections relative to 8.0.2 in comment 17 weird. It looks, to my untrained
eye, like many more .o files from the archives are getting pulled in.
--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13739#comment:21>
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