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danluu's profile
Dan Luu
Dan Luu
Dan Luu
@danluu

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Dan Luu

@danluu

https://patreon.com/danluu 

danluu.com
Joined December 2008

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    1. Dan Luu‏ @danluu May 15
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      Where does engineering rep come from? Here's a Google engineer slagging on Amazon engineering, which they say mediocre. I don't think this is an unusual opinion, I've heard this from people both inside and outside of Google. Google has the best engineering, Amazon is mediocre.pic.twitter.com/EPLwjpUytT

      "Amazon clearly does not compete by hiring the best engineers. Rather, they compete by throwing money at the problem and undercutting everyone else, getting by with mediocre engineering." -- googlemike
      49 replies 117 retweets 639 likes
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    2. Dan Luu‏ @danluu May 15
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      When I worked on cloud at MS, it was the same -- although AWS was clearly in the lead, a major concern was that Google's superior engineering would allow them to crush AWS and Azure; "preparing for a knife fight with Amazon, but Google is going to bring a gun to this knife fight"

      1 reply 2 retweets 100 likes
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    3. Dan Luu‏ @danluu May 15
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      But when I looked at execution speed on actual projects (via backchannel communications), AWS was smoking both us and Google. In one case, I heard that they got the idea for a project from our product announcement and they still shipped before we did.

      4 replies 45 retweets 407 likes
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    4. Dan Luu‏ @danluu May 15
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      They weren't moving fast and breaking things -- when I looked at 3rd party measured uptime, AWS was clearly #1 and we were going back and forth with Google for #2. This understates AWS's edge since they had fewer global outages and less flakiness that didn't count as downtime.

      4 replies 4 retweets 130 likes
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    5. Dan Luu‏ @danluu May 15
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      The more I looked into this, the more impressed I was with Amazon engineering. But AFAICT this never translated into any kind of reputational change. I don't think this is unique to Amazon either. When I compare general reputation to what I can observe, they seem uncorrelated.

      23 replies 12 retweets 236 likes
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    6. Dan Luu‏ @danluu May 15
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      BTW, I don't mean this thread as an attack on MS or Google. It's more that if I could take a sabbatical from my job and intern somewhere to learn from them, Amazon would be at the top of my list and I don't think many others would put any company in my top 3 in their top 50.

      9 replies 5 retweets 145 likes
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    7. Dan Luu‏ @danluu May 22
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      I've also never understood Widows snobbery. StackOverflow was running on 11 IIS boxes + 4 MySQL boxes in 2016, could tolerate failing down to 1 IIS box. Meanwhile, some trendy SV companies were serving multiple orders of magnitude less traffic at multiple OoM greater cost.pic.twitter.com/iBNu8yQokW

      "A couple years ago a venture capitalist friend told me about a new startup he was involved with. It sounded promising. But the next time I talked to him, he said they'd decided to build their software on Windows NT, and had just hired a very experienced NT developer to be their chief technical officer. When I heard this, I thought, these guys are doomed. One, the CTO couldn't be a first rate hacker, because to become an eminent NT developer he would have had to use NT voluntarily, multiple times, and I couldn't imagine a great hacker doing that; and two, even if he was good, he'd have a hard time hiring anyone good to work for him if the project had to be built on NT." -- Paul Graham
      4 replies 7 retweets 50 likes
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    8. Dan Luu‏ @danluu May 22
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      PG also says: Python programmers are smarter than Java programers, good hackers prefer Python. Odd, Google was built on Java & C++ (w/some Python). But if you were on the MS stack you wouldn't have to choose between the perf & IDE support of Java and Python expressiveness.pic.twitter.com/i0f0aMr4oy

      "When you decide what infrastructure to use for a project, you're not just making a technical decision. You're also making a social decision, and this may be the more important of the two. For example, if your company wants to write some software, it might seem a prudent choice to write it in Java. But when you choose a language, you're also choosing a community. The programmers you'll be able to hire to work on a Java project won't be as smart as the ones you could get to work on a project written in Python. And the quality of your hackers probably matters more than the language you choose. Though, frankly, the fact that good hackers prefer Python to Java should tell you something about the relative merits of those languages."
      3 replies 3 retweets 22 likes
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      Dan Luu‏ @danluu May 22
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      Until Kotlin, there wasn't a mainstream non-MS language that had anything close to the same combination of: * Performance * Ease of use / ease of onboarding new devs * IDE suport * General expressiveness (arguably Go, but I would disagree on expressiveness & IDE support)

      7:20 PM - 22 May 2020
      • 8 Retweets
      • 33 Likes
      • Kyle J Strand Sergey Tselovalnikov Josh Duff @athuras breandan Matt "MSG superfan" Olson William Lubelski Muhammad Arif R.H. Justin
      3 replies 8 retweets 33 likes
        1. New conversation
        2. Dan Luu‏ @danluu May 22
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          Why care about performance? While trendy $1B to $70B SV companies were devoting a ton of time, money, & effort to scaling up a v. low performance stack, SO was humming along with relatively little effort devoted to scaling because they started with a moderate performance stack.

          3 replies 7 retweets 50 likes
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        3. Dan Luu‏ @danluu May 22
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          If you compare the 2013 and 2016 StackOverflow architectures, the changes aren't radical: https://nickcraver.com/blog/2013/11/22/what-it-takes-to-run-stack-overflow/ … https://nickcraver.com/blog/2016/02/17/stack-overflow-the-architecture-2016-edition/ … Meanwhile, trendy SV companies were and are moving to incredibly complex architectures to scale out despite having much less traffic.

          4 replies 29 retweets 115 likes
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        4. End of conversation
        1. arthur johnston‏ @the_ajohnston May 22
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          Replying to @danluu

          In 2015 I went from C#/Visual Studio/Resharper at a startup to Java/Eclipse at Google. I was flabbergasted with how bad the tooling and language support was.

          0 replies 0 retweets 4 likes
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        1. Pugach Vitalii‏ @lionasp May 23
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          Replying to @danluu

          Just try Goland IDE

          0 replies 0 retweets 0 likes
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