fengxsong

package main

import (
	"fmt"
	"reflect"
	"unsafe"
)

type private struct {
	val string

fengxsong

Overly aggressive CFS

We're looking at CPU bandwidth control via CFS:

• https://www.kernel.org/doc/Documentation/scheduler/sched-bwc.txt

Reproduction program

Program does number of iterations, in each iteration we burn CPU in small chunks until we get 5ms of real time spent. On each iteration we also print how much

fengxsong

FROM maven:3.5.2-jdk-9 AS build 
COPY pom.xml /usr/src/app
COPY src /usr/src/app/src 
RUN mvn -f /usr/src/app/pom.xml clean package

FROM maven:3.5.2-jdk-9 AS build
COPY pom.xml /usr/src/app/
RUN mvn -f /usr/src/app/pom.xml dependency:copy-dependencies
COPY src /usr/src/app/src 
RUN mvn -f /usr/src/app/pom.xml clean package

fengxsong

#!/usr/bin/env python
# encoding:utf8
"""
https://open-doc.dingtalk.com/docs/doc.htm?spm=a219a.7629140.0.0.karFPe&treeId=257&articleId=105735&docType=1
"""
from __future__ import unicode_literals

import copy
import json
import requests

fengxsong

#!/bin/env bash

zero_commit="0000000000000000000000000000000000000000"

permit_user="gitlab-ci"

commit_msg_format="ci/`date +%Y%m%d`/*"

excludeExisting="--not --all"

fengxsong

package main

import (
	"bytes"
	"flag"
	"fmt"
	"io"
	"io/ioutil"
	"net"
	"net/http"

fengxsong

[URL][1]

package main

import "fmt"

func main() {
    // Use bitwise OR | to get the bits that are in 1 OR 2
    // 1     = 00000001

// 2 = 00000010

fengxsong

OID	Descr	Remarks	Method
.1.3.6.1.2.1.1.1.0	系统基本信息	SysDescr	GET
.1.3.6.1.2.1.1.3.0	SNMP自启动监控时间	sysUptime	GET
.1.3.6.1.2.1.1.4.0	系统联系人	sysContact	GET
.1.3.6.1.2.1.1.5.0	机器名	SysName	GET
.1.3.6.1.2.1.1.6.0	所在位置	SysLocation	GET
.1.3.6.1.2.1.1.7.0	提供服务	SysService	GET
.1.3.6.1.2.1.25.4.2.1.2	系统运行进程列表	hrSWRunName	WALK
.1.3.6.1.2.1.25.6.3.1.2	系统安装列表	hrSWInstalledName	WALK

fengxsong

#!/usr/bin/env python
# -*- coding:utf-8 -*-

import os
import click
import logging
import re
import subprocess
import time

fengxsong

package main

import (
	"bytes"
	"context"
	"crypto/tls"
	"encoding/base64"
	"encoding/json"
	"encoding/pem"
	"flag"