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sgrif's profile
Miss Dada 🏳️‍⚧️
Miss Dada 🏳️‍⚧️
Miss Dada  🏳️‍⚧️
@sgrif

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Miss Dada  🏳️‍⚧️

@sgrif

Co lead of the http://crates.io  team. Creator of @dieselframework. Former host of @_bikeshed and @_yakshave. Former Rails comitter. Enby. they/them

Albuquerque, NM
patreon.com/seantheprogram…
Joined November 2008

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    1. Joe Groff‏ @jckarter May 18
      • Report Tweet
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      Joe Groff Retweeted Alon Zakai

      Pointers are too bighttps://twitter.com/kripken/status/1262092956070109185 …

      Joe Groff added,

      Alon Zakai @kripken
      the lua-binarytrees benchmark is faster in wasm than native x64, since (1) 32-bit ptrs, (2) and wasm malloc just reserves room in an array (no OS page ops - unfair to native!) wasm->wasm2c->native is even faster! 40% faster than the normal native, 30% less RAM... 🧐
      15 replies 6 retweets 61 likes
      Show this thread
    2. Joe Groff‏ @jckarter May 18
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      Replying to @steveklabnik

      I think you could keep a wide address space, but still use narrower types than absolute pointers for most of your references

      2 replies 0 retweets 4 likes
    3. Miss Dada  🏳️‍⚧️‏ @sgrif May 18
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      Replying to @jckarter @steveklabnik

      Wouldn't this require things that the allocator can't guarantee? (Like pages being relatively <32 bits apart in address space)

      1 reply 0 retweets 1 like
    4. Joe Groff‏ @jckarter May 18
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      Replying to @sgrif @steveklabnik

      A general allocator, yeah, but you could conceivably organize your objects in a way that you can use alternative indexes

      1 reply 0 retweets 1 like
    5. Joe Groff‏ @jckarter May 18
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      Replying to @jckarter @sgrif @steveklabnik

      It would be fun to try to make a pseudo-x32 environment that can run within an LP64 environment. Have the binary reserve 4GB of BSS, use a custom allocator that grabs memory out of that space, and thunk the host OS interface to transition to big pointers when needed

      1 reply 0 retweets 2 likes
      Miss Dada  🏳️‍⚧️‏ @sgrif May 18
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      Replying to @jckarter @steveklabnik

      Joe stop trying to bring far pointers back

      5:30 PM - 18 May 2020
      • 3 Likes
      • const fn oli 1.3Kib compiler_builtins::int::udiv::__udivmoddi4 Joe Groff
      0 replies 0 retweets 3 likes

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