[cfe-dev] clang-cl.exe (32bit) dog slow, capping at ~16.5% CPU

[Tim Northover via cfe-dev]

On 1 June 2017 at 00:43, Nikodemus Siivola via cfe-dev
<cfe-dev at lists.llvm.org> wrote:
> I was wondering why compiles were so slow and noticed that clang-cl.exe is
> never consuming more than ~16.5% CPU on my laptop. This is an i7-7700HQ,
> 32GB memory, running Windows 10 Pro.

I suspect this figure just represents the fact that Clang is using 1/8
cores (plus some help from others for I/O in the OS, perhaps). Even a
debug Clang uses 100% of one core in my experience.

Tim.