GCC vs. Clang Compiler Benchmarks On POWER9 With Raptor's Blackbird

[sophisticles]

What I wouldn't do to see a 4C/16T or 4C/32T x86-64 cpu.

[tildearrow]

v0.3 and no HIB patchset applied yet......... dav1d results

4K

Clang: 9fps
GCC 9: 9fps
GCC 10: 9fps

1080p

GCC 9: 38.49fps
GCC 10: 39.15fps
Clang: 39.97fps

Still not ready for 4K or 1080p60.

[tildearrow]

Typo:

In the SciMark 2.0 C micro-benchmarks is one of the cases where LLVM Clang overall wasd outperforming GCC.

[tildearrow]

Should be fixed now, thanks.

Just to inform you: I am active between 12PM and 2AM UTC -5, which is why I couldn't approve the post in time.

[Michael]

Michael Comments link in the article not working? https://www.phoronix.com/forums/node/1115363 gives me an unauthorized error, but navigating through the forum works fine.

Interesting that gcc10 seems to regress in a lot of tests from gcc9.

Should be fixed now, thanks.

[squash]

Michael Comments link in the article not working? https://www.phoronix.com/forums/node/1115363 gives me an unauthorized error, but navigating through the forum works fine.

Interesting that gcc10 seems to regress in a lot of tests from gcc9.

[phoronix]

Phoronix: GCC vs. Clang Compiler Benchmarks On POWER9 With Raptor's Blackbird

While for Intel x86_64 with the latest compilers it's a very competitive race between LLVM Clang and GCC, how is that battle playing out on the IBM POWER9 front? Using the interesting Raptor Blackbird with IBM POWER9 4-core / 16-thread CPU, here are some recent benchmarks I did between GCC 9, GCC 10, and LLVM Clang 8.

http://www.phoronix.com/vr.php?view=28096