profelis

LBITS := $(shell getconf LONG_BIT)
MARCH ?= $(LBITS)
PREFIX ?= /usr/local
INSTALL_DIR ?= $(PREFIX)
INSTALL_BIN_DIR ?= $(PREFIX)/bin
INSTALL_LIB_DIR ?= $(PREFIX)/lib
INSTALL_INCLUDE_DIR ?= $(PREFIX)/include

LIBS=fmt sdl ssl openal ui uv mysql

homura

聊聊 Cardano 的八卦

今年（2021）9/12 这一天 Cardano 迎来了一次对于 Cardano 来说史上最大的更新 Alonzo，支持智能合约并推出 Plutus 等一些列用于在 Cardano 上开发智能合约的工具，当然了，在此之前，Alonzo Testnet 早已经于 5/21 上线进行测试。作为市值前五十的链之一，如此重大的利好怎能不吸引来一群认为是发现了财富密码的开发者呢，因此 Cardano 社区并不缺少先锋

背景

编程模型

大部分程序员更熟悉的都是类 Ethereum account model 这样的编程模型，而 Cardano 采用的是一种受 UTXO 启发的 EUTXO(Extended Unspend Output Transaction) ，虽然大抵都知道 BTC 的 UTXO 概念，但估计没有多少人想象过 general UTXO 的模型是怎样的。

TheSpydog

How to build your FNA game for WebAssembly

WARNING: This process is EXTREMELY experimental and not officially supported yet!

Thanks to the ongoing work on .NET WebAssembly support, it is now possible to build FNA games for the web!

If you decide to give this a try, be sure to tell us about it in the FNA Discord! I'm happy to help if you run into problems or have any further questions that are not answered here.

The Basics

ityonemo

A half-hour to learn Zig

This is inspired by https://fasterthanli.me/blog/2020/a-half-hour-to-learn-rust/

Basics

the command zig run my_code.zig will compile and immediately run your Zig program. Each of these cells contains a zig program that you can try to run (some of them contain compile-time errors that you can comment out to play with)

kprotty

const std = @import("std");
const system = switch (std.builtin.os.tag) {
    .linux => std.os.linux,
    else => std.os.system,
};

const ThreadPool = @This();

max_threads: u16,
counter: u32 = 0,

HenningTimm

Memory profiling Rust code with heaptrack in 2019

I recently ran into a classic case of "our code is using way more memory than it should". So I took my first dive into memory profiling Rust code. I read several posts about this, including the following

• KodrAus' gist on profiling rust
• This reddit thread
• Brendan D. Gregg's post about memory flamegraphs
• Bradlee Speice's A Case Study in Heaptrack

josephg

In case anyone else wants to play with Zig on webassembly, here's what you need to do to make it work on a mac today.

1. Get LLVM 7 compiled with webassembly support.

You'll need LLVM to output to the WASM target. This has just been added by default in trunk, so if LLVM >7 is available, you might be able to just brew install llvm.

If you have wasm support already you should see:

$ llc --version

sipa

Moved to https://github.com/sipa/writeups/tree/main/minimizing-golomb-filters

jFransham

Achieving warp speed with Rust

Contents:

• Number one optimization tip: don't
• Never optimize blindly
• Don't bother optimizing one-time costs
• Improve your algorithms
• CPU architecture primer
• Keep as much as possible in cache
• Keep as much as possible in registers

KodrAus

Profiling performance

Using perf:

$ perf record -g binary
$ perf script | stackcollapse-perf.pl | rust-unmangle | flamegraph.pl > flame.svg

NOTE: See @GabrielMajeri's comments below about the -g option.