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yoshuawuyts's profile
yosh
yosh
yosh
@yoshuawuyts

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yosh

@yoshuawuyts

Software researcher. he/they

Berlin, UTC+2
blog.yoshuawuyts.com
Joined May 2009

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    yosh‏ @yoshuawuyts Mar 14
    • Report Tweet
    • Report NetzDG Violation

    I feel comfortable using atomics now? Not testing fate though by using non-SeqCst orderings, but in general I'm like happy to use them in projects now. Remember a few months ago @Erstejahre was giving me pointers on how to reason about them. Growth!

    3:22 AM - 14 Mar 2020
    • 1 Retweet
    • 16 Likes
    • Jason Hansen fasterthanlime 🍉 Jeff Esteban K – 🦀⚙️@home ໓ฯlคຖ ໓p¢ ᴋᴏɴ 1.45.await nop3 panic!(“in your houses, separately”) Aaron Turon
    2 replies 1 retweet 16 likes
      1. New conversation
      2. Firstyear‏ @Erstejahre Mar 14
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        Replying to @yoshuawuyts

        This makes me super happy to hear: on the other side async always makes me feel dumb, and your writing and work on async std has helped me to learn a lot! Thanks so much!

        1 reply 0 retweets 3 likes
      3. yosh‏ @yoshuawuyts Mar 14
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        Replying to @Erstejahre

        🖤🖤🖤

        0 replies 0 retweets 2 likes
      4. End of conversation
      1. New conversation
      2. electrified filth‏ @sadisticsystems Mar 14
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        Replying to @yoshuawuyts @Erstejahre

        The most important aspect of using them is causing race conditions to pop out in tests. Random delays before all atomic operations, and conditional compilation that increase contention under test. I just got my ass whooped after feeling good for a custom queue in sled xD

        1 reply 0 retweets 2 likes
      3. electrified filth‏ @sadisticsystems Mar 14
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        Replying to @sadisticsystems @yoshuawuyts @Erstejahre

        make buffers small: https://github.com/spacejam/sled/blob/e5cd1c9a386793d63dd17f6125ba65b2d792941d/src/lru.rs#L14-L18 … add delays: https://github.com/spacejam/sled/blob/e5cd1c9a386793d63dd17f6125ba65b2d792941d/src/lru.rs#L61-L67 … this combination caused 5 races to jump out in under 1 second of testing, and caused me to quickly change the design to avoid them. ASAN also caught some https://github.com/spacejam/sled/blob/e5cd1c9a386793d63dd17f6125ba65b2d792941d/scripts/sanitizers.sh#L11-L19 …

        3 replies 1 retweet 2 likes
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