. First, we will follow the previous task_struct explains task space management structure mm_struct, and a brief introduction to the physical memory and virtual memory related knowle ...
Posted by captain_scarlet87 on Thu, 25 Jun 2020 03:54:04 -0700
Introduction - overview of strlen
I accidentally scan the code in glibc strlen.c, which I can't forget for a long time. I also remember the starting point in my unknown programming career:
Programming is not a joke, some are difficult, some are reluctant to give up. Review with the track, once the most familiar feeling of strlen~
/* Copyright ...
Posted by jtrost on Fri, 29 May 2020 06:52:45 -0700
This article is from: PerfMa Technical Community
PerfMa Official Website
Recently, our company helped a customer find a JVM problem (JDK1.8.0_191-b12), found that a system is always lost by OS Kill, caused by a memory leak.During the process of investigation, another Bug in JVM was found by mistake.This Bug is likely to cause a lot of ...
Posted by broann on Thu, 21 May 2020 20:06:56 -0700
In Linux, to judge whether a PID corresponding process exists, you can judge it as follows
#! /usr/bin/env python
if __name__ == "__main__":
Returns True if the PID exists in the sy ...
Posted by banjax on Tue, 19 May 2020 07:52:33 -0700
Author: Tian Jie It's not uncommon for a long query execution time to cause an application aware "jam" in the daily support and use of the database, but the SQL execution "jam" caused by the time zone setting is still an interesting phenomenon, which has not been specifically concerned before. This customer's meticulous and ...
Posted by WowAddict on Thu, 07 May 2020 03:57:46 -0700
The previous article gives the process of manual compilation and installation of redis, and gives the process of online installation of redis when simulating the establishment of redis cluster, so I want to write a redis script for online installation. In this paper, I mainly use shell functions to realize and verify the process of online ins ...
Posted by m!tCh on Wed, 25 Mar 2020 07:48:09 -0700
alpine Make Mirror
Introduction to alpine Linux
Making JDK8 Mirror Based on alpine
Alpine Makes a jre Mirror
Docker image uploaded to Aliyun
preparation in advance
Forget password can be modified by clicking on menu:'Container Mirror Service'- >'Default Instance' - >'Access Credentials'
Pull mi ...
Posted by kanetan on Tue, 25 Feb 2020 17:23:37 -0800
Introduction to alpine Linux
Making JDK8 image based on alpine
1. Making jdk image by alpine
2. Create and edit dockerfile
3. Execute dockerfile to create image
4. Create and start the container
5. Enter the container
6. test jdk
2. Alpine makes jre image (slimming)
Minimum JRE b ...
Posted by angrytuna on Fri, 21 Feb 2020 03:34:39 -0800
I can print printf as a hexadecimal or octal number.Is there a format tag printed as binary or any cardinality?
I'm running gcc.
printf("%d %x %o\n", 10, 10, 10); //prints "10 A 12\n"
print("%b\n", 10); // prints "%b\n"
This code should meet your needs for up to 64 bits.I created two functions, pBin & pBinFill.Both do ...
Posted by new_to_php2004 on Mon, 10 Feb 2020 19:04:34 -0800
When you see this title, you must be thinking about the bug s caused by memory overlap. I admit that you are right, but not all of them. If you are interested in this, you can continue to look down, and you will surely get something.
First of all, I will briefly introduce the background. Recently, there is a strange problem in the company's pr ...
Posted by cordex on Sat, 14 Dec 2019 11:41:16 -0800