Performance
This page currently shows a limited collection of code that we've compiled to a program repository. The quantity of code being successfully compiled has been gradually increasing, even LLVM itself (Build LLVM with the Repo Compiler) is a viable test source.
pstore (commit: 0b38182933421c800847d2acc322cda08ae68a70)
The compilation time is measured by adding -ftime-trace to all files and analysed with ClangBuildAnalyzer.
Compiler switches: -O0 -DNDEBUG -ftime-trace -fno-exceptions -fno-rtti
| Target | Frontend time (seconds) | Backend time (seconds) | Total compilation time (seconds) |
|---|---|---|---|
| ELF | 262.6 | 21.5 | 284.1 |
| prepo initial compilation | 260 | 21.6 | 281.6 |
| prepo incremental compilation | 259 | 4.9 | 263.9 |
(Times are average of 4 iterations.)
Compiler switches: -O3 -DNDEBUG -ftime-trace -fno-exceptions -fno-rtti
| Target | Frontend time (seconds) | Backend time (seconds) | Total compilation time (seconds) |
|---|---|---|---|
| ELF | 273.8 | 180.7 | 454.5 |
| prepo initial compilation | 272.5 | 180.7 | 453.2 |
| prepo incremental compilation | 264.3 | 9.3 | 273.6 |
(Times are average of 4 iterations.)
llvm-project-prepo (commit: ff3ca79f6cf10f99a05ad3067c197cbd38f913a1)
pstore (commit: 0b38182933421c800847d2acc322cda08ae68a70)
| Architecture | x86_64 |
| Model name | AMD Ryzen 9 3950X 16-Core Processor |
| CPU(s) | 32 |
| Thread(s) per core | 2 |
| Core(s) per socket | 16 |
| Socket(s) | 1 |
| CPU max MHz | 3500.0000 |
| CPU min MHz | 2200.0000 |
| L1d cache | 512 KiB |
| L1i cache | 512 KiB |
| L2 cache | 8 MiB |
| L3 cache | 64 MiB |
| Memory | 32GiB System Memory |
| OS | Ubuntu 20.04.1 LTS |