601
Testing Memory Allocators: ptmalloc2 vs. tcmalloc vs. hoard vs. jemalloc
Quote: if you DO want to get performance from changing mallocs, make sure to test them with your own app Another Quote: in our humble opinion, overall winner...
New
The latest blog posts to take off on Hacker News. 1,274 posts.
602
Plans for OCaml 4.08
With the external release of OCaml 4.07.0 imminent, we in Jane Street’s Tools & Compilers group have been planning what we want to work on for inclusion ...
603
React Native: A retrospective from the mobile-engineering team at Udacity
The mobile team at Udacity recently removed the last features in our apps using React Native. Here's what worked and what didn't.
604
Running JRuby on the Graal JIT
Hello, friends! Long time no blog!I'm still here hacking away on JRuby for the benefit of Rubyists everywhere, usually slogging through compatibility fixes and new Ruby features. However with the release of JRuby 9.2, we've caught up to Ruby 2.5 (the current release) and I'm spending a little time on performance.I…
605
606
Rules of optimization
Rules of optimization: 1) Design for performance from day 1 2) Profile often 3) Be vigilant on performance regressions 4) Understand the data 5) Understand the HW 6) Help the compiler 7) Verify your assumptions Performance is everyone's responsibility https://t.co/CwwJffnHGz
607
Pipelines – a guided tour of the new IO API in .NET
Pipelines - a guided tour of the new IO API in .NET, part 1 (part 2 here) About two years ago I blogged about an upcoming experimental IO ...
608
609
Haskell’s State monad is not a monad (2014)
Haskell’s State monad has a shameful secret. It’s not a monad [ State monads don’t respect the monad laws in Haskell, Simon Marlow ] . Look:
610
Pointers Are More Abstract Than You Might Expect in C
A pointer references a location in memory and dereferencing a pointer refers to the lookup of the value of the memory location the pointer references. The value of a pointer is a memory address. The C standard does not define the representation of a memory address. This is crucial since not every architecture makes…
611
C2rust vs. Corrode
A couple weeks ago, Galois and Immunant launched c2rust. Since I wrote one of the best-known C-to-Rust translation tools (Corrode), and since I worked for Ga...
612
C++ Just My Code Stepping in Visual Studio
In Visual Studio 2017 release 15.8 Preview 3 we’re announcing support for Just My Code stepping for C++. In addition to previously supported callstack
613
Rust pointers for C programmers
Josef “Jeff” Sipek's Blahg
614
Extracting Super Mario Bros levels with Python
For an upcoming project, I need to extract level data from the classic 1985 video game Super Mario Bros (SMB) . More precisely, I want to extract the background imagery for each stage of the game, excluding HUD elements and moving sprites, etc.
615
An Easier Way to Build Alexa Skills Using Python
Amazon Apps & Services Developer Portal
616
Crystal 0.25.1 released
Crystal 0.25.1 has been released!
617
Keras vs PyTorch
Keras and PyTorch are both excellent choices for your first deep learning framework. Learn how they differ and which one will suit your needs better.
618
Cool Retro Terminal
I often don't blog about this kind of stuff. Yesterday I friend of mine showed me this awesome project called cool-retro-term . When yo...
619
Python 3.7 released
The official home of the Python Programming Language
620
I Don’t Believe in Full-Stack Engineering
There, I said it.
621
Supercharging the Git Commit Graph
Have you ever run gitk and waited a few seconds before the window appears? Have you struggled to visualize your commit history into a sane order of
622
623
Anti-If: The missing patterns (2016)
Software development blog of Joe Wright
624
How Clang Compiles a Function
Minor nit: printing the predecessors of a basic block is a feature of the IL printer, not Clang. It is just visualizing information that is implicit in the IR anyway.
625
Examples of Parallel Algorithms from C++17
MSVC (VS 2017 15.7, end of June 2018) is as far as I know the only major compiler/STL implementation that has parallel algorithms. Not everything is done, but you can use a lot of algorithms and apply std::execution::par on them! Have a look at few examples I managed to run.
626
Deep code search
Deep code search Gu et al., ICSE’18 The problem with searching for code is that the query, e.g. “read an object from xml,” doesn’t look very much like the source code snippets tha…
627
628
Our Vision for Rust and WebAssembly
Stay up to date with events, learning resources, and recent developments in Rust and WebAssembly community.
629
Docker Considered Harmful (2016)
A note in advance: This is absolutely not about Docker being too "opinionated" for me, or other tools being more flexible. I believe that learning and using Docker is just plain more complicated than learning and using the tools I describe below. Docker is genuinely more complex and harder to use than the…
630
Making a low level Linux debugger, part 2: C
Last time , we started making a debugger and live editor for (re)creating assembly and C programs.