[LLVMdev] Linking times

[NAKAMURA Takumi]

Do you specify CMAKE_BUILD_TYPE
if you are using cmake?
2012/05/27 18:21 "Mikael Lyngvig" <mikael at lyngvig.org>:

> Hi,
>
> Just a brief follow-up on my link time issue: It was caused by excessive
> trashing; I tried rebuilding on a box with 8 gigs of RAM and observed the
> memory load while linking clang.exe: It peaked at 5 gigabytes memory, so
> now I've written this piece of info into the LLVM/Windows document that I
> posted earlier (I have already made a substantial number of corrections in
> the document).  All in all, it took the 2 gig box about 5 hours to link
> clang.exe :-)
>
> I must say that I am once again surprised about GNU tools.  I'd expect the
> linker to use perhaps 100 megabytes of memory as it only needs to record
> where the BLOBs are in the input files and then, during one of the final
> passes, copy each binary block to the output file - without caching it in
> memory.  I do suspect that GNU ld indiscriminantly reads in everything
> under the assumption that people never link that large files.
>
>
> Cheers,
> Mikael
> -- Love Thy Frog!
>
>
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>
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