zhaozhao zhaozhao

Common

export OPT=/opt
export BUILDS=/some/where/mini_linux
mkdir -p $BUILDS

Linux kernel

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

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	# mihomo (Clash Meta) 懒人配置
	# 版本 V1.23-251221

	package main

	import (
	"context"
	"flag"
	"fmt"
	"log"
	"net/http"
	"os"
	"os/signal"

	'use strict';
	var gulp = require('gulp');
	var gutil = require('gulp-util');
	var del = require('del');
	var uglify = require('gulp-uglify');
	var gulpif = require('gulp-if');
	var exec = require('child_process').exec;


	var notify = require('gulp-notify');

	import mesosphere.mesos.util.FrameworkInfo
	import org.apache.mesos.MesosSchedulerDriver


	/**
	* @author Tobi Knaup
	*/

	object Main extends App {

	from flask import Flask, make_response
	app = Flask(__name__)

	@app.route("/simple.png")
	def simple():
	import datetime
	import StringIO
	import random

	from matplotlib.backends.backend_agg import FigureCanvasAgg as FigureCanvas

	import sys
	import gevent
	from gevent.monkey import patch_all; patch_all()
	from gevent import server, event, socket
	from multiprocessing import Process, current_process, cpu_count

	"""
	Simple multiprocess StreamServer that proxies messages between clients.

	Avoids using a multiprocessing.Event since it blocks on a semaphore.