[PATCH] D56215: [lld] [ELF] Include default search paths for NetBSD driver

[Kamil Rytarowski via Phabricator via cfe-commits]

krytarowski added a comment.

  On 03.01.2019 23:15, Joerg Sonnenberger wrote:
  > On Thu, Jan 03, 2019 at 09:38:49PM +0000, Kamil Rytarowski via Phabricator via cfe-commits wrote:
  >> I think that this place is not the right place to bash GNU ld for performance issues.
  > 
  > I didn't.
  > 
  >> I will refer just to slides and paper from Ian Lance Taylor to get overview why it is unacceptably slow:
  >>
  >> https://www.airs.com/ian/gold-slides.pdf
  >> https://ai.google/research/pubs/pub34417.pdf
  > 
  > We all know that gold and lld are faster. It's a huge step from
  > "somewhat faster" to "unacceptably slow". But that's again a completely
  > separate topic.

I used to waste like an hour daily average, any test-build of a local change and break of 5-10 min is `unacceptably slow`.

  >> I will add that (unless nothing changed recently) ignoring lack of
  >> features (like thinlto) GNU ld cannot produce >=4GB executables and
  >> this makes it even more unusable.
  > 
  > That sounds seriously like a troll. I already mentioned DWARF fission
  > for the one reasonable case for > 100MB binaries and that's in short
  > "don't touch most of the data"...
  > 
  
  I've edited the entry above that it's already more than 4GB of unoptimized webkit build with debuginfo, and gnu ld is truncating files on 4GB boundary.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D56215/new/

https://reviews.llvm.org/D56215