[LLVMdev] Linking times

[Mikael Lyngvig]

No, I use the command:

    cmake -G "MinGW Makefiles" ..\llvm


Cheers,
Mikael
-- Love Thy Frog!

2012/5/27 NAKAMURA Takumi <geek4civic at gmail.com>

> 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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