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@jboner
jboner / latency.txt
Last active November 19, 2024 14:58
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD
@MartinBspheroid
MartinBspheroid / gist:8902181
Last active November 16, 2022 05:39
openFrameworks hacks (win64)
// TESTED ON nightly-build ver 0.8 (of_v20130813) in Visual Studio 2012 - Win64
// MAKE APP ALWAYS ON TOP
HWND AppWindow = GetActiveWindow();
SetWindowPos(AppWindow, HWND_TOPMOST, NULL, NULL, NULL, NULL, SWP_NOMOVE | SWP_NOSIZE);
// DISABLE FUNCTION DESCRIBED ABOVE
HWND AppWindow = GetActiveWindow();
@baiwfg2
baiwfg2 / CMakeLists.txt
Created September 29, 2018 12:42
How to use add_custom_target and add_custom_command correctly in cmake
# References:
# https://cmake.org/cmake/help/latest/command/add_custom_target.html
# https://samthursfield.wordpress.com/2015/11/21/cmake-dependencies-between-targets-and-files-and-custom-commands/
# https://gist.github.com/socantre/7ee63133a0a3a08f3990
# https://stackoverflow.com/questions/24163778/how-to-add-custom-target-that-depends-on-make-install
# https://stackoverflow.com/questions/30719275/add-custom-command-is-not-generating-a-target
# https://stackoverflow.com/questions/26024235/how-to-call-a-cmake-function-from-add-custom-target-command
# https://blog.csdn.net/gubenpeiyuan/article/details/51096777
cmake_minimum_required(VERSION 3.10)
@jharmer95
jharmer95 / property.hpp
Last active May 14, 2023 17:06
Class emulating properties for C++
#include <iostream>
#include <memory>
#include <type_traits>
#include <utility>
namespace not_std
{
template<typename T>
constexpr T default_getter(const T& val) noexcept
{