Viewing profile — evmar

I did some exploration of this idea in a followup build system! See https://neugierig.org/software/blog/2022/03/n2.html . (It's not really production-ready.)

Thanks for saying this! I am close enough to it that I mostly remember all of the bad decisions I made that are now unfixable, haha.

Yes, I don’t remember the details but vaguely remember that CMake tends to group things together that could in principle be made more parallel, as you mention with generates files …

[Ninja author here] Nice post, cool to see the deep dive! I also appreciate the details on how they produced their numbers. As they observe, Ninja gets to be fast mostly by cheatin…

If you imagine Google's job is to present useful information, these blogs that are maximizing cash while simulating usefulness are exactly the sorts of things I would hope Google t…

A better solution might be to use https://github.com/evanw/polywasm to run the original wasm in place.

One thing I sometimes think about when I think about text layout problems is how the text we use also has a bunch of complexities that we can take for granted. Think of variable wi…

Thanks, I'd love to add them! Do you have a good source for this data? I did a quick look at the site you linked above and I'm not sure whether it has numbers for GDP or landmass f…

I was curious about comparisons like the ones you're making between US states and EU countries and made this little app, maybe you'll find it useful! https://evmar.github.io/states…

This is my second emulator, and in my first I picked a name more like that and regretted it. A thing I now appreciate about emulators is that it's common to increase scope -- like …

Thanks a lot for this, I will put it on my list to investigate. I've gone in circles a few times with how to think about image buffer management because I also support DirectDraw, …

Wow, thanks for the link, that is perfect timing! I submitted my post and my own feedback on the discussion: https://github.com/WebAssembly/shared-everything-threads/dis...

[post author] I looked into this API but wasn't sure how to make good use of it. I may have misunderstood, maybe you could help! The doc you linked has two forms of use, sync and a…

Gosh, I think that means even when your code is wholly running on workers (where you would be able to use the atomic wait mentioned in the comment), it still will busy loop, doesn'…

One nice tool for analyzing maps as a tree is as a dominator trees. I wrote a bit about it here: https://neugierig.org/software/blog/2023/07/dominator.html

The translator I made is only hobbyist quality, but I just have a big table that says “if you indirect jmp to address X then the associated block is at location Y”. This is slower …

Do you have any notes or other artifacts from your recompiler? I’d love to learn more.

Yes, I agree that there is little harm in gathering too much code. I have tried out just scanning data memory for values that refer to addresses within the region marked as code an…

Slow progress is fine, it took me like two years to get where I got! (Not that I was working on it full time or anything, but also there were just many false starts and I had no id…

Looking through Wikipedia at least, it's not exactly clear to me. They have separate pages for 'binary recompiler' and 'binary translation' that link to each other, and the latter …

[post author] I went down some similar paths in retrowin32, though 32-bit x86 is likely easier. I was also surprised by how much goop there is between startup and main. In retrowin…

It depends on what results you’re expecting! Relative to an interpreter, even the simplest unoptimized translation of that code is already significantly more efficient code at runt…

I see, I might be confused by the terminology. "clobber" to me suggests intentionally trying to throw away cached results (clobbering what you have), but it sounds like you might j…

I’m not too familiar with Firefox builds. Why are clobber builds common? At first glance it seems weird to add a cache around your build system vs fixing your build system.