Chao Gao reterVision

## verify
Verifying that "retervision.id" is my Blockstack ID. https://onename.com/retervision

## atomic_test.go
package main

import (
	"sync"
	"sync/atomic"
	"testing"
)

func Benchmark_Lock(b *testing.B) {
	var lock sync.RWMutex

## AppDelegate.swift
import UIKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?


    func application(application: UIApplication,
                     didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {

## notes.md

      
              1 file
            
          
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                reterVision
                / notes.md
            
            
              Last active
              March 30, 2023 11:51
            
              
                Linux Performance Tuning
              
          
    1.1 Linux process management


process scheduling
interrupt handling
signaling
process prioritization
process switching
process state
process memory


## client.go
package main

import (
	"bufio"
	"encoding/gob"
	"log"
	"net"
	"os"
)

## udp_client.go
package main

import (
	"encoding/json"
	"fmt"
	"log"
	"net"
	"os"
	"time"
)

## insert_pg.go
/*
        Original idea from
        http://www.acloudtree.com/how-to-shove-data-into-postgres-using-goroutinesgophers-and-golang/
*/
package main

import (
        "log"
        "time"
        "os"

## postgres_slave_promote.md

      
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                reterVision
                / postgres_slave_promote.md
            
            
              Created
              July 2, 2014 08:30
                — forked from bartek/postgres_slave_promote.md
            
          
    This example is based on having a cascading setup, where you have a single master, a single "primary" slave, and cascading slaves which are being replicated from the primary slave. For an example of this setup, check out http://bartek.im/blog/2012/12/04/postgresql-92-streaming-primer.html
On the existing master, if accessible, stop postgres.
$ sudo service postgresql stop

And better to be safe than sorry. We can't have two masters running. (I only use this in an automated script. If you're doing this manually, you'd know if it was shutoff)
$ kill -9 `sudo cat /var/lib/postgresql/9.2/main/postmaster.pid | head -n 1` &> /dev/null


## nginx-openresty-ubuntu-build-dependencies.sh
# Build dependencies for OpenResty.
sudo apt-get install build-essential libpcre3-dev libssl-dev libgeoip-dev

# Install standard Nginx first so that you get the relevant service scripts installed too
sudo apt-get install nginx

# If you want to access Postgres via Nginx
sudo apt-get install libpq-dev

## lcs.go
package main

import (
	"bufio"
	"fmt"
	"log"
	"os"
	"strings"
)
	package main

	import (
	"sync"
	"sync/atomic"
	"testing"
	)

	func Benchmark_Lock(b *testing.B) {
	var lock sync.RWMutex
	import UIKit

	@UIApplicationMain
	class AppDelegate: UIResponder, UIApplicationDelegate {

	var window: UIWindow?


	func application(application: UIApplication,
	didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
	package main

	import (
	"encoding/json"
	"fmt"
	"log"
	"net"
	"os"
	"time"
	)
	/*
	Original idea from
	http://www.acloudtree.com/how-to-shove-data-into-postgres-using-goroutinesgophers-and-golang/
	*/
	package main

	import (
	"log"
	"time"
	"os"
	# Build dependencies for OpenResty.
	sudo apt-get install build-essential libpcre3-dev libssl-dev libgeoip-dev

	# Install standard Nginx first so that you get the relevant service scripts installed too
	sudo apt-get install nginx

	# If you want to access Postgres via Nginx
	sudo apt-get install libpq-dev