flukejones

#![feature(unboxed_closures)]
#![feature(core)]
#![feature(io)]

use std::old_io::stdio::{stdin};
use std::collections::HashMap;

// This is our toy state example.
#[derive(Debug)]
struct State {

flukejones

#![feature(core_intrinsics)]

pub trait Deserialize: Sized {
    fn deserialize(String) -> Self;
}

struct Position(i32, i32);
struct Velocity(i32, i32);

impl Deserialize for Position {

flukejones

/// Problem: there is a lot of duplication in function implementations.
/// The two types should have the same interface but use a different underlying type.
///
/// How can I reduce the amount of duplication and avoid having to update the code in two places?
/// In other languages, I would define a base class which accepts a generic type for the `SoundSource`s
/// but I don't know how to solve this sort of problem in Rust.

struct Sound {
    // Shared properties
    is_playing: bool,

flukejones

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.

flukejones

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