vulkoingim

High Performance Redis

In response to this brief blog entry, @antirez tweeted for some documentation on high-performance techniques for Redis. What I present here are general high-performance computing (HPC) techniques. The examples are oriented to Redis. but they work well for any program designed to be single- or worker-threaded and asynchronous (e.g. uses epoll).

The motivation for using these techniques is to maximize performance of our system and services. By isolating work, controlling memory, and other tuning, you can achieve significant reduction in latency and increase in throughput.

My perspective comes from the microcosm of my own bare-metal (vs VM), on-premises deployment. It might not be suitable for all scenarios, especially cloud deployments, as I have little experience with HPC there. After some discussion, maybe this can be adapted as [redis.io documentation](https://redis.io/do

vulkoingim

How to set up DNS records on gandi.net to use a custom domain on Github Pages

You would think it would be easy to find this information, but none of the Github or Gandi documentation is clear so I have recorded the required steps here.

Create the following A records:

@ 1800 IN A 185.199.108.153
@ 1800 IN A 185.199.109.153
@ 1800 IN A 185.199.110.153

vulkoingim

#include <iostream>
#include <memory>

#include <grpc++/grpc++.h>
#include <grpc++/client_context.h>
#include <grpc++/create_channel.h>
#include <grpc++/security/credentials.h>
#include <grpc++/support/status.h>
#include <grpc/grpc.h>
#include <grpcpp/grpcpp.h>

vulkoingim

#!/usr/bin/env bash

# This script lists all ip ranges currently used by
# the google cloud platform, according to ns-lookup / dig
# TXT _cloud-netblocks.googleusercontent.com
#
# https://cloud.google.com/compute/docs/faq#ipranges

errcho() {
    >&2 echo "$@"

vulkoingim

package main

import (
	"context"
	"crypto/rand"
	"log"
	"os"
	"time"

	"cloud.google.com/go/storage"

vulkoingim

### Keybase proof

I hereby claim:

  * I am vulkoingim on github.
  * I am vlk (https://keybase.io/vlk) on keybase.
  * I have a public key ASBCspjHgf6Zm9bNqlTJbKQYe9bsq94pdJUOA-nArSyx6Ao

To claim this, I am signing this object: