Viewing profile — fmstephe

Location: New Zealand, Manawatu Remote: Yes Willing to relocate: No Technologies: Go, Java, C#, Git, Erlang, Postgres, Linux Resume: https://www.linkedin.com/in/francis-stephens/ E…

Location: New Zealand, Manawatu Remote: Yes Willing to relocate: No Technologies: Go, Java, Git, Erlang, Postgres, Linux Resume: https://www.linkedin.com/in/francis-stephens/ Email…

Location: New Zealand, Manawatu Remote: Yes Willing to relocate: No Technologies: Go, Java, Git, Erlang, Postgres, Linux Resume: https://www.linkedin.com/in/francis-stephens/ Email…

Last time this was asked I was working on this https://github.com/fmstephe/simd_explorer A little TUI app for interactively running different SIMD instructions and seeing the outpu…

Can some clarify this part of the article for me "if you search forward, you need to scan through the entire window to find where to split. you’d find a delimiter at byte 50, but y…

If anyone wants to try it out (the UI is a bit rough). I will try fix up any issues that are uncovered.

Working on a TUI tool which demonstrates the behaviour of X86 SIMD instructions. This is all done in Go assembly, and is probably most valuable for Go programmers. The problem for …

Location: New Zealand, Manawatu Remote: Yes Willing to relocate: No Technologies: Go, Java, Git, Erlang, Postgres, Linux Resume: https://www.linkedin.com/in/francis-stephens/ Email…

Location: New Zealand, Manawatu Remote: Yes Willing to relocate: No Technologies: Go, Java, Git, Erlang, Postgres, Linux Resume: https://www.linkedin.com/in/francis-stephens/ Email…

Location: New Zealand, Manawatu Remote: Yes Willing to relocate: No Technologies: Go, Java, Git, Erlang, Postgres, Linux Resume: https://www.linkedin.com/in/francis-stephens/ Email…

In New Zealand, where I live, the Salvation Army (charity second hand shop) offers a service where they will come and clear out a house for you. They will take everything and dispo…

I've been working on an offheap allocator for Go. In contrast to the popular arena based allocators (which target quickly allocating/freeing short lived per-request allocations), I…

For the problems that arena allocators solve, relatively short lived allocations which die soon, yes. A generational collector would allow for faster allocation rates (a thread loc…

This article is a fun read. If you enjoyed this, or if you need more control over some memory allocations in Go, please have a look at this package I wrote. I would love to have so…

Location: New Zealand, Manawatu Remote: Yes Willing to relocate: No Technologies: Go, Java, Git, Erlang, Postgres, Linux Resume: https://www.linkedin.com/in/francis-stephens/ Email…

Just an anecdote from work to back this up. I wrote a system that was taking requests, making another request to a service (that basically wrapped elasticsearch) and then processed…

Location: New Zealand, Manawatu Remote: Yes Willing to relocate: No Technologies: Go, Java, Git, Erlang, Postgres, Linux Resume: https://www.linkedin.com/in/francis-stephens/ Email…

So would you say in the general case, i.e. the compiler obviously doesn't know how predictable a branch may be, using conditional move is a poor choice when writing to an address w…

This is a very good answer. Thanks.

Yeah, after reading the blog post I felt reasonably confident that this is a compiler bug (in terms of perf). Hopefully someone with a deeper understanding can verify or discredit …

It's interesting that you say conditional move here. I am confused by this behaviour, and although I definitely don't know what the answer is here; the non-lol version does have a …

According to the godot compiler explorer removing the `continue` makes no difference to the generated assembly. https://godbolt.org/z/ds1raTYc9 https://godbolt.org/z/rbWsxM83b The …

Location:New Zealand Remote: Yes Willing to Relocate: No Technologies: Golang, Java, Postgres, Kafka Resume: https://www.linkedin.com/in/francis-stephens/ Email: francisstephens@gm…

Great :)

https://news.ycombinator.com/item?id=14379636 I assume this relates to this conversation? This is a bit of a snippet from a broader discussion (which I found really interesting). M…