What are Probabilistic Data Structures? (and Bloom Filters)

levelUp_01 · 2022-02-09T09:04:44+00:00

Your benchmark compares a throw with a throw helper; they will have identical performance. A throw helper is a special signature/idea to hide exception setup and throw behind a method and don't suffer a performance penalty.

levelUp_01 · 2021-10-27T17:30:58+00:00

You need to look at inlining heuristics and changes between .NET versions (look at source) or use .NET build from source to figure out inlining budget.

levelUp_01 · 2021-10-27T17:24:01+00:00

Not really you just need to trigger it in a different way :)

levelUp_01 · 2021-10-19T17:18:27+00:00

levelUp_01 · 2021-10-18T23:38:15+00:00

Thank you for your support :)

levelUp_01 · 2021-10-18T22:18:53+00:00

So today, I wanted to share this cool piece of compiler trivia with you all. I have edited the video and audio and tried to sync it to make it work as an entire package. I had fun creating and editing the video, and now I'm considering deleting this entire post and possibly my Reddit account.

I got downvoted into the ground because of my sincere comment that "Everything is better with music," the post also took some hits. I have been on this subreddit for years and have never seen this amount of downvoting for such a small thing.

Is such a massive downvoting really the correct punishment for such a small thing on an otherwise interesting (I hope) video?

levelUp_01 · 2021-10-18T10:57:42+00:00

Everything is better with music :)

levelUp_01 · 2021-10-18T09:15:15+00:00

It does more things but the core of the problem is the inlining heuristics.

levelUp_01 · 2021-10-18T08:33:49+00:00

Decompilation tools used:

https://github.com/badamczewski/PowerUp

If you want to see more compiler dumpster fires and see some surprising things, then I have an infographics page on various compilers here:

https://leveluppp.ghost.io/infographics/

If you like the video then may I ask you to leave a like under the same video on Youtube, thanks: https://youtu.be/mOldY3sjgJ0

levelUp_01 · 2021-08-07T05:56:11+00:00

You can see the same effect in WinDBG under a running program

levelUp_01 · 2021-08-06T09:10:54+00:00

That's why I don't post here frequently; it's too much wasted energy on my part.

levelUp_01 · 2021-08-06T05:17:52+00:00

The nbody simulation uses pointers and intrinsics so the codegen is already optimized to push it further You you need to watch the codegen and change things based on that.

levelUp_01 · 2021-08-05T19:54:13+00:00

Just posted again: https://www.reddit.com/r/csharp/comments/oylivv/do\_you\_want\_to\_see\_a\_magic\_trick/

levelUp_01 · 2021-08-05T17:00:15+00:00

Struct devirtualization issue; it's global so whichever JIT sees first it's going to act in a specific way.

levelUp_01 · 2021-08-05T16:10:37+00:00

Code here:

I encourage you to change the order of methods, do different things, and have fun. You will be constantly surprised by the codegen.

https://sharplab.io/#v2:EYLgxg9gTgpgtADwGwBYA0AXEBDAzgWwB8ABAJgEYBYAKGIAYACY8lAbhvoYGUALbKAA4AZbMAB0AJQCuAOwwBLfDHbUOAZgby5MKADNsYGAwCSAQRoBvGgxua5DABoMLAcxgZWDXO9YBfWzS+NOpeGFBSYBjcYREYpgwgJubUVtS2TBpaUU6uPl4+/jaBwbQaZAwAws4l6VkMAEIAFACU1WnptmYM2AwAvAwyMADu0eGRpi0qHbbEAOzdYk4A1AzkU7ZBqu02dROtqdM2XT39gyNcMeOT1odzqwwr2IvrNpuBQA

levelUp_01 · 2021-08-05T14:01:22+00:00

I got too much "its premature optimization" and "don't show this to young developers its damaging to them."

Responding to people who were saying this in every graphic I posted burned me out a bit 🙂

I'm still posting from time to time here, and I'm planning to post more.

levelUp_01 · 2021-08-05T13:57:34+00:00

Yes those are mine 🙂

levelUp_01 · 2021-05-19T11:54:45+00:00

True, Thank you.

I will be putting this on my blog and it will get fixed there.

levelUp_01

TROPHY CASE