Skip to content
By using Twitter’s services you agree to our Cookies Use. We and our partners operate globally and use cookies, including for analytics, personalisation, and ads.

This is the legacy version of twitter.com. We will be shutting it down on June 1, 2020. Please switch to a supported browser, or disable the extension which masks your browser. You can see a list of supported browsers in our Help Center.

  • Home Home Home, current page.
  • About

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @
  • Language: English
    • Bahasa Indonesia
    • Bahasa Melayu
    • Català
    • Čeština
    • Dansk
    • Deutsch
    • English UK
    • Español
    • Filipino
    • Français
    • Hrvatski
    • Italiano
    • Magyar
    • Nederlands
    • Norsk
    • Polski
    • Português
    • Română
    • Slovenčina
    • Suomi
    • Svenska
    • Tiếng Việt
    • Türkçe
    • Ελληνικά
    • Български език
    • Русский
    • Српски
    • Українська мова
    • עִבְרִית
    • العربية
    • فارسی
    • मराठी
    • हिन्दी
    • বাংলা
    • ગુજરાતી
    • தமிழ்
    • ಕನ್ನಡ
    • ภาษาไทย
    • 한국어
    • 日本語
    • 简体中文
    • 繁體中文
  • Have an account? Log in
    Have an account?
    · Forgot password?

    New to Twitter?
    Sign up
TimSweeneyEpic's profile
Tim Sweeney
Tim Sweeney
Tim Sweeney
@TimSweeneyEpic

Tweets

Tim Sweeney

@TimSweeneyEpic

Epic Games founder & CEO

epicgames.com
Joined August 2013

Tweets

  • © 2020 Twitter
  • About
  • Help Center
  • Terms
  • Privacy policy
  • Imprint
  • Cookies
  • Ads info
Dismiss
Previous
Next

Go to a person's profile

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @

Promote this Tweet

Block

  • Tweet with a location

    You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more

    Your lists

    Create a new list


    Under 100 characters, optional

    Privacy

    Copy link to Tweet

    Embed this Tweet

    Embed this Video

    Add this Tweet to your website by copying the code below. Learn more

    Add this video to your website by copying the code below. Learn more

    Hmm, there was a problem reaching the server.

    By embedding Twitter content in your website or app, you are agreeing to the Twitter Developer Agreement and Developer Policy.

    Preview

    Why you're seeing this ad

    Log in to Twitter

    · Forgot password?
    Don't have an account? Sign up »

    Sign up for Twitter

    Not on Twitter? Sign up, tune into the things you care about, and get updates as they happen.

    Sign up
    Have an account? Log in »

    Two-way (sending and receiving) short codes:

    Country Code For customers of
    United States 40404 (any)
    Canada 21212 (any)
    United Kingdom 86444 Vodafone, Orange, 3, O2
    Brazil 40404 Nextel, TIM
    Haiti 40404 Digicel, Voila
    Ireland 51210 Vodafone, O2
    India 53000 Bharti Airtel, Videocon, Reliance
    Indonesia 89887 AXIS, 3, Telkomsel, Indosat, XL Axiata
    Italy 4880804 Wind
    3424486444 Vodafone
    » See SMS short codes for other countries

    Confirmation

     

    Welcome home!

    This timeline is where you’ll spend most of your time, getting instant updates about what matters to you.

    Tweets not working for you?

    Hover over the profile pic and click the Following button to unfollow any account.

    Say a lot with a little

    When you see a Tweet you love, tap the heart — it lets the person who wrote it know you shared the love.

    Spread the word

    The fastest way to share someone else’s Tweet with your followers is with a Retweet. Tap the icon to send it instantly.

    Join the conversation

    Add your thoughts about any Tweet with a Reply. Find a topic you’re passionate about, and jump right in.

    Learn the latest

    Get instant insight into what people are talking about now.

    Get more of what you love

    Follow more accounts to get instant updates about topics you care about.

    Find what's happening

    See the latest conversations about any topic instantly.

    Never miss a Moment

    Catch up instantly on the best stories happening as they unfold.

    1. Axel Gneiting‏ @axelgneiting Mar 21
      • Report Tweet
      • Report NetzDG Violation

      Fun fact: Doom Eternal does not have a main or render thread. It's all jobs with one worker thread per core.

      83 replies 344 retweets 2,322 likes
      Show this thread
      Tim Sweeney‏ @TimSweeneyEpic Mar 22
      • Report Tweet
      • Report NetzDG Violation
      Replying to @axelgneiting

      In simple terms, how do you prevent data races when an update to one entity requires modifying the state of an unrelated entity? Say, two players shoot at a monster with critically low health and one is credited with the kill.

      10:04 AM - 22 Mar 2020
      • 62 Likes
      • Raeve RWD aloo Matt Loveday Alex Silkin Daniel Zeligman joãoL Stephen Junkins Benjamin Blodgett
      11 replies 0 retweets 62 likes
        1. New conversation
        2. Conor Stokes, the man from online‏ @xDirtyPunkx Mar 22
          • Report Tweet
          • Report NetzDG Violation
          Replying to @TimSweeneyEpic @axelgneiting

          You can implement nearly all concurrency control mechanisms on top of a job system with something akin to continuation passing style/async await/promises. A lock in that model is just a thread safe queue of waiting job continuations, when released the queued continuation runs.

          2 replies 0 retweets 12 likes
        3. Tim Sweeney‏ @TimSweeneyEpic Mar 22
          • Report Tweet
          • Report NetzDG Violation
          Replying to @xDirtyPunkx @axelgneiting

          In that model, are you manually rolling a custom transaction protocol for every interaction that may occur in-game, and manually plumbing all of the state around and reverting upon failure?

          4 replies 0 retweets 6 likes
        4. 4 more replies
        1. New conversation
        2. Florian Hoenig‏ @rianflo Mar 23
          • Report Tweet
          • Report NetzDG Violation
          Replying to @TimSweeneyEpic @axelgneiting

          Is it fair to specify the topic more by asking "and game play coding needs retain simplicity" ?

          1 reply 0 retweets 1 like
        3. Florian Hoenig‏ @rianflo Mar 23
          • Report Tweet
          • Report NetzDG Violation
          Replying to @rianflo @TimSweeneyEpic @axelgneiting

          With these architectural questions I always arrive at that. Surely I can write game play code in a parallel way like I write complex GPU compute algorithms. However, then only 10 people will make a game. Right?

          1 reply 1 retweet 1 like
        4. 2 more replies
        1. New conversation
        2. Dan Baker‏ @dankbaker Mar 22
          • Report Tweet
          • Report NetzDG Violation
          Replying to @TimSweeneyEpic @axelgneiting

          Dunno about them, but we use a message based architecture to avoid race conditions. Each reciever decides when/how to resolve data change requests.

          1 reply 0 retweets 12 likes
        3. Caleb Allen‏ @Caleb_Allen Mar 22
          • Report Tweet
          • Report NetzDG Violation
          Replying to @dankbaker @TimSweeneyEpic @axelgneiting

          True object oriented programming!

          0 replies 0 retweets 0 likes
        4. End of conversation
        1. Charlie Demerjian‏ @CDemerjian Mar 22
          • Report Tweet
          • Report NetzDG Violation
          Replying to @TimSweeneyEpic @axelgneiting

          Have a set of rules that allow for multiple outcomes from the same action when it won't disrupt the meta progress. In the case above, credit both unless it is meta-critical. This allows you to avoid checking in a lot of cases. Where it matters, do it the hard/slow way.

          0 replies 0 retweets 2 likes
          Thanks. Twitter will use this to make your timeline better. Undo
          Undo
        1. Jonathan Leonard‏ @johanatan Mar 22
          • Report Tweet
          • Report NetzDG Violation
          Replying to @TimSweeneyEpic @axelgneiting

          The same way you do with multiplayer: multicore and multinode are equivalently “multi”.

          0 replies 0 retweets 1 like
          Thanks. Twitter will use this to make your timeline better. Undo
          Undo
        1. Raymond Arifianto‏ @RayArifianto Mar 22
          • Report Tweet
          • Report NetzDG Violation
          Replying to @TimSweeneyEpic @axelgneiting

          I assume there has to be a shared context to do locking and synchronization? But debugging this would be quite a feat!

          0 replies 0 retweets 1 like
          Thanks. Twitter will use this to make your timeline better. Undo
          Undo
        1. Alexander Boczar‏ @mrboczar Mar 22
          • Report Tweet
          • Report NetzDG Violation
          Replying to @TimSweeneyEpic @axelgneiting

          I suspect they group tasks and have a few 'serial' group behaviors. In your particular example all damage can be logged with an entity and later resolved/processed by the entity itself.

          0 replies 0 retweets 0 likes
          Thanks. Twitter will use this to make your timeline better. Undo
          Undo

      Loading seems to be taking a while.

      Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.

        Promoted Tweet

        false

        • © 2020 Twitter
        • About
        • Help Center
        • Terms
        • Privacy policy
        • Imprint
        • Cookies
        • Ads info