macton

# syntax=docker/dockerfile:1
FROM centos:7 as stage-1

##
## Install unityhub, chromimum, visual studio code, dotnet, gcc10 (+dependencies)
##

RUN yum -y install centos-release-scl-rh
RUN yum -y install epel-release
RUN yum -y install http://www.nosuchhost.net/~cheese/fedora/packages/epel-7/x86_64/cheese-release-7-1.noarch.rpm 

macton

Cheatsheet for WSL2

Initial setup

• See: Setup initial https://codingfullstack.com/cloud/docker-installation-wsl2/
• Additional Steps:
  • Enable WSL2
  • Enable VGPU
  • Enable Hyper-V
  • Enable Windows Apps -> Optional Features -> Graphics Tools

bkaradzic

Orthodox C++

This article has been updated and is available here.

macton

// This file: https://gist.github.com/macton/4dd5fec2113be284796e
// See: Intel Intrinsics Guide  https://software.intel.com/sites/landingpage/IntrinsicsGuide/
// See: CPUID Explorer          http://www.flounder.com/cpuid_explorer1.htm
// See: Playing with cpuid      http://newbiz.github.io/cpp/2010/12/20/Playing-with-cpuid.html
// See: MSDN __cpuid, __cpuidex http://msdn.microsoft.com/en-us/library/hskdteyh.aspx
// See: Notes on MMX/SSE and a searchable table of intrinsics. http://www.taffysoft.com/pages/20120418-01.html
// See: AMD CPUID Specification http://amd-dev.wpengine.netdna-cdn.com/wordpress/media/2012/10/25481.pdf

#if defined(__GNUC__)
#include <stdint.h>

macton

-------------------------------------------------------------------------------------------------------------
View process memory info
$ cat /proc/<process_id>/smaps
-------------------------------------------------------------------------------------------------------------
Overall memory info
http://stackoverflow.com/a/13754307
$ smem 
-------------------------------------------------------------------------------------------------------------

jboner

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