1 millisecond monitor

At the leader's request today, I tested and improved the performance, and found that the improved performance has increased by more than 100 times! It took more than 130 milliseconds to replace an article. Now it only takes less than 1 millisecond! The main difference is the regular expression generation and the number of times the circular article content is generated. The main code below is provided for y

This feature has been used for a long time to replace the article blocking word with regular expressions. Because there is no pressure during use, its performance has not been optimized. At the leader's request today, I tested and improved the performance, and found that the improved performance has increased by more than 100 times! It took more than 130 milliseconds to replace an article. Now it only takes less than 1

multiple parts, representing its different descendants, each concentric circle represents one of his descendants, each part of the division represents a number of people, When you double-click a split part of a concentric circle, it becomes the center of the generation that you clicked and then expands outward.The problems that Memory Monitor can findThe Memory Monitor tool is a monitoring tool, a discover

QEMU, as a very important virtualization tool, provides a wealth of features/parameters to support the various operations of virtualization. The following is a brief introduction to the monitor parameter, or function, to combine your own actual experience. How to enter the console of the QEMU monitor mode. Two paths: 1, ctrl+alt+

Today, the performance detection and monitoring of EF and MVC projectsFirst, let's introduce the tools we use today.miniprofiler~The introduction of this thing is as follows:MVC Miniprofiler is a small program designed by the stack Overflow team for performance analysis of ASP. You can monitor a page itself, as well as other pages accessed through direct references, Ajax, and IFRAME, to monitor content incl

For many beginners, the ROM Monitor of Cisco routers is often unfamiliar or even daunting. The reason is very simple. First, we do not often use this mode and are not familiar with its related operations; second, Operation errors in ROM Monitor mode often cause fatal damage To routers, such as destroying IOS files in flash, resulting in system crashes. So many people put their hands on it and are discourage

Although the Linux operating system is much more stable than the Windows operating system. However, this stability is relative. That is to say, the Linux operating system may also get angry. In some cases, the system's resource usage (including CPU or memory) may reach more than 90%. To this end, the system administrator still needs to monitor the usage of system resources when necessary. Today, I will introduce how to

information. Both network management software and traffic monitoring software require support of the SNMP protocol. In this example, You need to monitor the traffic through the routing and switching ports. Therefore, you need to enable the SNMP protocol on the routing and switching devices and specify the destination address for receiving SNMP records. With these settings, the routing and switching devices can record the data through the port and sen

Monitoring Server StatusGet System Performance Information1, CPU information:The Linux operating system uses several parts of the CPU:User time; SystemTime; Wait Io;idlePsutil.cpu_times ()Psutil.cpu_times (). UserPsutil.cpu_count ()2 , Memory informationpsutil.virtual_memory () # View memory Full informationpsutil.swap_memory () # View Swap Partition Information3 , disk informationpsutil.disk_io_counters () # get the hard drive IO Totalpsutil.disk_usage ('/') # get the usage of a partitionpsutil

computer's monitor refresh rate, we find that there is no refresh rate to choose from, because the driver of the previous video card is incorrect or too old. It's easy to get this problem on a computer that has an earlier purchase time at this point do not use the purchase of the computer with the CD-ROM driver, you can download the corresponding display card of the latest version of the driver, and then open the "System" Properties window, click the

] System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW (MSG ByRef) 0030eeb8 552f6292 system.windows.forms.application+ ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop (INTPTR, Int32,Int32 ) 0030eebc 552f5e6a [inlinedcallframe:0030eebc] 0030ef44 552f5e6a System.windows.forms.application+threadcontext.runmessageloopinner (Int32 , System.Windows.Forms.ApplicationContext) 0030ef88 552f5bd0 system.windows.forms.application+ Threadcontext.runmessage

1. What is "blocking"?Blocking is a side effect of the SQL database application "lock" mechanism. When an application request is locked for a database object (such as a full table, a row of data, or a data page), the lock blocks other application requests. It's like you lock your home door, your wife doesn't have a key, and you can only wait for you to go home. Her request to enter the room was blocked by you and had to wait until you unlocked the doo

/* *copyright (c) 2016, *all Rights reserved, School of computer and Control engineering, Yantai University. * File name: main.cpp * Author: li * Completion date: May 1, 2016 * version number: v1.0 * * Problem Description: The student class that stores monitor information * Input Description: No * Output Description: Student, monitor information */#include 11th W

UseLinuxOnCactiGo to monitoringWindowsServer, good results. Let's see how it works! Previously, cacti or mrtg was used to monitor switch traffic and rarely used to monitor servers. Recently, a job suddenly needed to monitor Windows servers, the monitoring settings are based on vswitches and Linux, and there is no specific selection for windows monitoring. So I st

I. The purpose of this articleStraggler is the hotspot of research, and there are straggler problems in spark. GC problem is one of the most important factors that lead to straggler, in order to understand the straggler problem caused by GC, we need to learn GC problem first and how to monitor the GC of Spark. GC issues are more discussed, and a series of articles is recommended for learning: to become a GC expert in Java.Ii. Tools required for this a

The developed system has the function of Generating document numbers. My practice is to view the current value of the document number field in the data table, add 1 to generate a new document number and store it. I didn't think too much, but after reading the document, our boss told me that if two users access this document number at the same time, the newly generated number is duplicated in the data table. What should I do? This involves accessing sh

The script reads as follows:-------------------------------------------------------------------------------------------------------#!/bin/sh#定义变量secs=3600Unit_time=60stepts=$ (($secs/$unit _time))echo CPU usage ...;For ((i=0;iDoPs-eo COMM,PCPU | Tail-n +2 >>/tmp/cpu_usage.$$ #$$ indicates current process PID informationSleep $unit _timeDoneecho CPU Eaters:cat/tmp/cpu_usage.$$ | \awk ' {process[$1]+=$2}end{for (i in process) {printf ("%-20s%s\n", I,pro

implementation version of Packet32, modeled after the Microsft SDK style. The contents are in sequence: Contents of Packet32 Package Functions in the Packet32 package Packetgetadapternames Packetopenadapter, etc. Data structure in the Packet32 package Example 1: Use Packet32 to set the NIC to promiscuous mode and monitor all packets. Contents of Packet32 Package Packet Driver: Oemsetup.inf install

. BATTERY_STATUS_FULL;Int chargePlug = intent. getIntExtra (BatteryManager. EXTRA_PLUGGED,-1 );Boolean usbCharge = chargePlug = BatteryManager. BATTERY_PLUGGED_USB;Boolean acCharge = chargePlug = BatteryManager. BATTERY_PLUGGED_AC;Log. I ("PowerConnectionReceiver", "isCharing:" + isCharging + "\ nusbCharge:" + usbCharge + "\ nacCharge:" + acCharge );}} Determine current battery power Sometimes, it is also necessary to determine the current battery pow

For analysis, monitoring, and transformation of communication data MySQL-Proxy (1) [figure] TIP: MySQL-Proxy is a program between the MySQL database client and the server. it supports the embedded scripting language Lua. This proxy can be used to analyze, monitor, and transform communication data. it supports a wide range of application scenarios: load balancing and failover processing query analysis and lo