mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 11:13:28 +01:00
78dfceef4b
Add a "-j" option to llvm-profdata to control the number of threads used.
Auto-detect NumThreads when it isn't specified, and avoid spawning threads when
they wouldn't be beneficial.
I tested this patch using a raw profile produced by clang (147MB). Here is the
time taken to merge 4 copies together on my laptop:
No thread pool: 112.87s user 5.92s system 97% cpu 2:01.08 total
With 2 threads: 134.99s user 26.54s system 164% cpu 1:33.31 total
Changes since the initial commit:
- When handling odd-length inputs, call ThreadPool::wait() before merging the
last profile. Should fix a race/off-by-one (see r275937).
Differential Revision: https://reviews.llvm.org/D22438
llvm-svn: 275938
|
||
|---|---|---|
| .. | ||
| ADT | ||
| Analysis | ||
| AsmParser | ||
| Bitcode | ||
| CodeGen | ||
| DebugInfo | ||
| ExecutionEngine | ||
| IR | ||
| LineEditor | ||
| Linker | ||
| MC | ||
| MI | ||
| ObjectYAML | ||
| Option | ||
| ProfileData | ||
| Support | ||
| Transforms | ||
| CMakeLists.txt | ||