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Jonathan_Blow's profile
Jonathan Blow
Jonathan Blow
Jonathan Blow
@Jonathan_Blow

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Jonathan Blow

@Jonathan_Blow

Designer/Programmer of Braid and The Witness. President, Thekla, Inc. Partner in IndieFund. Currently working on good new things.

San Francisco
the-witness.net/news
Joined January 2010

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    1. John Carmack‏Verified account @ID_AA_Carmack May 1

      With 64 bit address spaces, thread stacks should have GBs reserved by default, and programming with alloca should be encouraged. A lot of string and container work could be done at high performance with alloca and no frees if you don't let them escape.

      32 replies 78 retweets 572 likes
    2. Jonathan Blow‏ @Jonathan_Blow May 1
      Replying to @ID_AA_Carmack

      Having a per-thread temporary allocator that is a standard convention, so that everyone including libraries can use it, is better... you can return temporary strings / arrays / nodes from functions, etc. (I do this all the time in the language I am working on).

      2 replies 1 retweet 72 likes
    3. Jonathan Blow‏ @Jonathan_Blow May 1
      Replying to @Jonathan_Blow @ID_AA_Carmack

      You just pretend like you have a GC for all these things, and it just gets completely reset once per frame at a known point.

      5 replies 0 retweets 50 likes
    4. Michael Marcin‏ @EscJaeger May 1
      Replying to @Jonathan_Blow @ID_AA_Carmack

      So like objective c autorelease pool?

      1 reply 0 retweets 0 likes
      Jonathan Blow‏ @Jonathan_Blow May 2
      Replying to @EscJaeger @ID_AA_Carmack

      No, because it does not have the same imposition of structure, not performance impact.

      10:39 AM - 2 May 2021
      • 1 Like
      • renerocksai
      0 replies 0 retweets 1 like

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