Re: New developments on topic of memset, memcpy and similar

2021-11-27 Thread Igor via Digitalmars-d-learn

On Saturday, 27 November 2021 at 11:48:02 UTC, Imperatorn wrote:

On Saturday, 27 November 2021 at 11:15:45 UTC, Igor wrote:
Two years ago there was a [Google Summer of Code 
project](https://forum.dlang.org/thread/izaufklyvmktnwsrm...@forum.dlang.org) to implement these primitives in pure D for various reason. It was concluded the project isn't viable and was abandoned, but there were some interesting learnings. I now stumbled on some new work in C land about these that might be interesting to people that were following the original project so I am sharing it here:


Custom ASM implementation that outperforms libc: 
https://github.com/nadavrot/memset_benchmark
Paper on automatic implementation of these primitives: 
https://dl.acm.org/doi/pdf/10.1145/3459898.3463904


Haven't read yet, but how did they make it portable?


Regarding custom ASM implementation I think it is only for X64 
platform.


Re: New developments on topic of memset, memcpy and similar

2021-11-27 Thread MrSmith via Digitalmars-d-learn

On Saturday, 27 November 2021 at 11:15:45 UTC, Igor wrote:

Additionally, here is the twitter thread from the author: 
https://twitter.com/nadavrot/status/1464364562409422852


Re: New developments on topic of memset, memcpy and similar

2021-11-27 Thread user1234 via Digitalmars-d-learn

On Saturday, 27 November 2021 at 11:15:45 UTC, Igor wrote:
Two years ago there was a [Google Summer of Code 
project](https://forum.dlang.org/thread/izaufklyvmktnwsrm...@forum.dlang.org) to implement these primitives in pure D for various reason. It was concluded the project isn't viable and was abandoned, but there were some interesting learnings. I now stumbled on some new work in C land about these that might be interesting to people that were following the original project so I am sharing it here:


Custom ASM implementation that outperforms libc: 
https://github.com/nadavrot/memset_benchmark
Paper on automatic implementation of these primitives: 
https://dl.acm.org/doi/pdf/10.1145/3459898.3463904


Also LLVM has intrinsics or special instructions for those libc 
stuff. I suppose that there are special optimz that are tried and 
if not possible that falls back to the libc version.


Re: New developments on topic of memset, memcpy and similar

2021-11-27 Thread Imperatorn via Digitalmars-d-learn

On Saturday, 27 November 2021 at 11:15:45 UTC, Igor wrote:
Two years ago there was a [Google Summer of Code 
project](https://forum.dlang.org/thread/izaufklyvmktnwsrm...@forum.dlang.org) to implement these primitives in pure D for various reason. It was concluded the project isn't viable and was abandoned, but there were some interesting learnings. I now stumbled on some new work in C land about these that might be interesting to people that were following the original project so I am sharing it here:


Custom ASM implementation that outperforms libc: 
https://github.com/nadavrot/memset_benchmark
Paper on automatic implementation of these primitives: 
https://dl.acm.org/doi/pdf/10.1145/3459898.3463904


Haven't read yet, but how did they make it portable?


New developments on topic of memset, memcpy and similar

2021-11-27 Thread Igor via Digitalmars-d-learn
Two years ago there was a [Google Summer of Code 
project](https://forum.dlang.org/thread/izaufklyvmktnwsrm...@forum.dlang.org) to implement these primitives in pure D for various reason. It was concluded the project isn't viable and was abandoned, but there were some interesting learnings. I now stumbled on some new work in C land about these that might be interesting to people that were following the original project so I am sharing it here:


Custom ASM implementation that outperforms libc: 
https://github.com/nadavrot/memset_benchmark
Paper on automatic implementation of these primitives: 
https://dl.acm.org/doi/pdf/10.1145/3459898.3463904