[llvm-dev] LLD's default --build-id choice
Rui Ueyama via llvm-dev
llvm-dev at lists.llvm.org
Thu Jun 2 10:15:09 PDT 2016
On Thu, Jun 2, 2016 at 9:55 AM, Joerg Sonnenberger via llvm-dev <
llvm-dev at lists.llvm.org> wrote:
> On Wed, Jun 01, 2016 at 05:03:22PM -0700, Rui Ueyama wrote:
> > > What about the hash tree options, those can at least be computed
> > > piecewise and concurrently?
> > >
> > We could but it only mitigate the issue. If the decision was wrong in the
> > first place, I want to fix it completely if it's not too late.
> Well, the hash tree option would always help, even for the cryptographic
> checksums that are even slower.
It's not always. It disperses workloads to multiple cores, so it mitigates
the situation, but if a link occurs during a build and other cores are
still busy compiling other stuff, it doesn't help.
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