kghose

" ~/.vimrc

set mouse=a
set nu
set laststatus=2
set statusline=
set statusline+=%=
set statusline+=\[%c]
set statusline+=\ %l/
set statusline+=%L

kghose

kghose

/*
  g++ --std=c++17 -O3 doublebuffer.cpp -odoublebuffer
*/
#include <chrono>
#include <ctype.h>
#include <fstream>
#include <string>
#include <thread>

const size_t buf_size = 50000;

kghose

/*
  Code to perform L1, L2 cache locality experiments
  https://kaushikghose.wordpress.com/2020/01/27/profiling-and-improving-cache-performance/
*/
#include <iostream>
#include <vector>

const size_t N = 1200;

class Matrix {

kghose

/*

*/
#include <iostream>
#include <vector>

const size_t N = 1000;

class Matrix {

kghose

#include <iostream>
#include <vector>

struct Feet {
    double f;
    Feet(double f)
        : f(f)
    {
    }
    explicit constexpr operator double() const { return f; }

kghose

#include <iostream>
#include <vector>

#include "units.h"

using namespace units::literals;
using namespace units;

typedef units::length::meter_t Meters;
typedef units::length::foot_t Feet;

kghose

import sys
from PySide2.QtCore import QObject, QUrl, Signal, Slot
from PySide2.QtWidgets import QApplication
from PySide2.QtWebChannel import QWebChannel
from PySide2.QtWebEngineWidgets import QWebEngineView

# We create this file as follows

# First create a .qrc file so we can include the ace editor code and the qqwebchannel.js in a form
# usable by the application. Delightfully QT doesn't allow wildcards or directories in the .qrc

kghose

kghose

/*
 * Compile with
 *  gcc -msse4.1 -ggdb -O3 -Wall -Wextra measure-dram.c -o measure-dram \
 *           && objdump -dx measure-dram | egrep 'movntdqa' -A 2 -B 2
 */
#define _GNU_SOURCE // setaffinity

#include <emmintrin.h>
#include <fcntl.h>
#include <sched.h>