SVT-AV1 0.7 Released For Speedy AV1 Video Encoding With More AVX2/AVX512 Optimizations

[phoronix]

Phoronix: SVT-AV1 0.7 Released For Speedy AV1 Video Encoding With More AVX2/AVX512 Optimizations

The engineers maintaining Intel's open-source Scalable Video Technology (SVT) encoders today released SVT-AV1 0.7 as the newest feature update to their speedy AV1 video encoder...

http://www.phoronix.com/scan.php?page=news_item&px=SVT-AV1-0.7-Released

[pyler]

And still no compiler benchmarks with gcc 10 and clang 10...

[Michael]

And still no compiler benchmarks with gcc 10 and clang 10...

Both of which are still in development... And I have done some GCC 10 benchmarks already ( https://www.phoronix.com/scan.php?pa...rch&q=GCC%2010 ) I generally do them every few months. Also daily GCC benchmarks on http://linuxbenchmarking.com/?daily-gcc-benchmarks

[cl333r]

And still no compiler benchmarks with gcc 10 and clang 10...

These days compilers can't deliver more than 1-2% perf increase per new release, except enabling hw features not used before.

[pyler]

I did my own SPEC 2016 benchmarking. Clang 10 SVN vs GCC 10 SVN

SPECint_base2006 score: 35.5 vs. 34.5; Clang is faster..

Used optimization flags: "-O3".

Measured on Haswell Intel Core i7-4720HQ.


Clang 10 SVN SPEC 2006 results: http://i.imgur.com/Oc0Pxbs.png

GCC 10 SVN SPEC 2006 results: http://i.imgur.com/SHrN4GJ.png

[pyler]

>> These days compilers can't deliver more than 1-2% perf increase per new release, except enabling hw features not used before.

Not true. If you are lucky, new release can often speed up your code more than 5% - I can say so for Clang, dunno for GCC. A lot of work is put into optimizations (combining, unroller, vectorizer, etc).. You should check it.

[Ivan Dimitrov]

This encoder is really amazing - it made the online videos finally playable without removing 60fps video and forcing old codecs.
Great work.