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| -rw-r--r-- | clang/docs/ThinLTO.rst | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/clang/docs/ThinLTO.rst b/clang/docs/ThinLTO.rst index 38873f464c2..05a0b67dbab 100644 --- a/clang/docs/ThinLTO.rst +++ b/clang/docs/ThinLTO.rst @@ -105,7 +105,9 @@ Controlling Backend Parallelism ------------------------------- .. _parallelism: -By default, the ThinLTO link step will launch up to +By default, the ThinLTO link step will launch as many +threads in parallel as there are cores. If the number of +cores can't be computed for the architecture, then it will launch ``std::thread::hardware_concurrency`` number of threads in parallel. For machines with hyper-threading, this is the total number of virtual cores. For some applications and machine configurations this |
