RadeonSI Ups Its Compiler Threads To Let Shader-DB Run Faster On Modern Systems

[phoronix]

Phoronix: RadeonSI Ups Its Compiler Threads To Let Shader-DB Run Faster On Modern Systems

The RadeonSI compiler queue can now run across more CPU cores/threads of modern systems though it appears this will primarily just benefit those running the shader-db shader test cases...

http://www.phoronix.com/scan.php?page=news_item&px=RadeonSI-Compiler-Threads

[Veerappan]

Should hopefully translate to faster load times on many core CPUs for games as well

[schmidtbag]

"threads times three divided by four" is an odd way of saying "threads*0.75"

[pal666]

"threads times three divided by four" is an odd way of saying "threads*0.75"

it is a difference between integer and floating point numbers

[droste]

It's just literally what the code does :-)

num_comp_hi_threads = hw_threads * 3 / 4;

And it's not the same for the computer! Since these are integer operations the result is not the same as "threads*0.75"

[oleyska]

Moah performance.!!


Any idea how would this translate to gallium nine performance for Starcraft 2 for instance?

[smitty3268]

It's just literally what the code does :-)

num_comp_hi_threads = hw_threads * 3 / 4;

And it's not the same for the computer! Since these are integer operations the result is not the same as "threads*0.75"

Though in practice, I'm not aware of any computers where it wouldn't be. 12, 16, 24, 32, 36, 48, etc. cores all divide evenly. I guess maybe in a virtual environment there might be an odd # of cores assigned.

[nanonyme]

Though in practice, I'm not aware of any computers where it wouldn't be. 12, 16, 24, 32, 36, 48, etc. cores all divide evenly. I guess maybe in a virtual environment there might be an odd # of cores assigned.

Maybe some multi-CPU setup where the CPU's don't have same amount of cores?

[andrei_me]

marek what were the effects of this change in shaderdb execution time?

[shmerl]

"threads times three divided by four" is an odd way of saying "threads*0.75"

Or simply three quarters