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cmuratori Obviously, the degree of speedup you get depends entirely on a) how underutilized the w…
Unfortunately no. Clang does same thing that GCC does for these vector types: https://gcc.gnu.org…
elle —
I noticed that LLVM is less strict about the vector types than MSVC by default. For example, it d…
noxy_key —
It's hard to ignore 8 processors. After all, they're just sitting there, unused. I'm pretty sure …
robert —
Hello All,
I was watching episode 124 and i think i ahve spotted a possible bug in the threading…
There's more stuff about MESI on ryg blog: https://fgiesen.wordpress.com/2014/08/18/atomics-and-c…
Kladdehelvete, did you read all the text I posted or just the first sentence?
If what you are sa…
The problem here is strictly that there is no compression happening, and the dynamic range of the…
Ah! Good :) Although there's probably still a smarter way to do it if I thought about it for a …
The problem with any of this is that you really don't know until you actually test it with your w…
Well, that may be true, but we cannot get rid of it until we duplicate the function, because keep…
Hyperthreading definitely does allow you to potentially double the work done per core. The reaso…
Please take note that I am 100% confident that Casey will do extremely well with his game eventua…
mmozeiko 1. There is no such thing as 8.1 cores. So it is not correct to say that 1 thread is usi…
Marco —
Hey everyone,
I hope Casey won't ban me for posting CppCon references :) Here are some videos an…
elle —
I think we can save 1 multiply, 1 add, and 1 shift at the end of the function when we unnecessari…
1. There is no such thing as 8.1 cores. So it is not correct to say that 1 thread is using 1/16 o…
noxy_key —
I don't know how applicable this is to optimization via hyperthreading, but the two links below s…
elle
Has anyone else noticed this too, or is this a bug in my version?
No, it seems to me it s…
You were not tired - you looked up if there are shift by variable amount for 128-bit register. Th…
For last few versions of Visual Studio (at least from VS2005, maybe even older) all CRT functions…
Yeah, the _mm_slli_si128 instruction is for shifting by an _immediate_, which means it has to be …
I have never had a problem using CreateThread, but that is probably because I don't generally use…
Nick —
I just finished episode 122 so forgive me if this has already been answered. I've been reading a …
Personally, Andy, I think what you've done will suffice. By which I actually mean, you've totally…
I updated the episode guide to show which episodes lack annotations - "Annotations Incomplete" ne…
elle —
Here are two recent links that do a great job at analyzing games in detail.
Scroll Back The Theo…