process performance counter

Python is used to monitor linux performance and process consumption performance. This article provides an example of how to monitor linux performance and process consumption performance using python. The specific implementation co

steps of the performance test process---detect (to standardize performance testing) Performance testing of the work of a multitude of, the most afraid of is like a headless fly blindly test, not only time, but also accumulated less than experience, team and individuals are difficult to grow, (the next time the

Steps of the performance test process---detect (to standardize performance testing)Performance testing of the work of a multitude of, the most afraid of is like a headless fly blindly test, not only time, but also accumulated less than experience, team and individuals are difficult to grow, (the next time the

vmstk process stack size vmexe The virtual size of the executable memory of the program. It does not contain libraries used by processes Vmlib The size of the library used by the process Example: Viewing The situation of the WebLogic process java The program code for the

CPU -dependent strace output %time for the total time of all system calls, this is the percentage of time spent on this system call Second The total number of seconds this system call took Calls The total number of all calls of this type 4.2.3 LtraceLtrace is similar to the concept of strace, but it tracks the application's call to the library instead of the kernel. Although Ltrace is primarily used to provide

Search process of HiPAC high-performance rule matching algorithm, hipac high-performanceWhen I received an email, A friend thought I had misunderstood nf-HiPAC. How can such a high-performance algorithm be forced by traditional hash and tree algorithms. Yes, HiPAC is a very powerful algorithm, and there are few documents. This increases the mystery of HiPAC, but

1. ppm associates the current behavior of the process or sub-process with the final result of the environment and process. PPM predicts the final results of the process through possible changes to actual factors (such as what-if ). In this prediction process, the model invol

This article implements Python's method of monitoring Linux performance and process consumption performance in an instance form, implementing the following code: #-*-Coding:utf-8-*-"" "Created on Tue June 10:20:13 2014 @author: Lifeix" "" from collections import ordereddict Import time import os def cpuinfo (): lines = open ('/proc/stat '). ReadLines

Tags: purpose reference establishing cost storage combined with different ICA engines6 Query Performance Optimization6.1 Why queries become slowThis illustrates the query execution cycle, from the client to the server side, the server-side resolution, the optimizer generates execution plans, executes (can be subdivided, the general process can be viewed through show profile), and returns the client results

(* P2); P2 --); Dwprocessidtitle = atol (P2 + 1 ); } // Next string P + = (strlen (p) + 1 ); } // Free the counter names Buffer Free (BUF ); // Allocate the initial buffer for the performance data Dwsize = initial_size; Buf = (lpstr) malloc (dwsize ); While (true) { If (BUF = NULL) _ Leave; Memset (BUF, 0, dwsize ); Rc = regqueryvalueex (ghperfkey, szsubkey, null, dwtype, (lpbyte) BUF, dwsize ); Pperf =

1 Performance Test process 1.1 performance test plan stage The main work of the test plan phase is as follows: 1. Define the test object 2. Define test objectives 3. Define the Criteria for passing the test 4. Plan the Test Progress 5. Plan testing participants (requirements, development, testing, O M and configuration) 6. Apply for test resources 7. Ris

　　1.1 Performance Test Planning phaseThe main tasks of the test planning phase are as follows:1, clear Test object2. Define test objectives3. Define the standards passed by the test4. Planning Test Progress5, planning test participants (requirements, development, testing, transport and peacekeeping configuration)6. Apply for test resources7. Risk Control1.2 Performance Test Design phaseThe main tasks of the

The translation is as follows:1.1 Linux Process ManagementProcess management is one of the most important functions of the operating system. Efficient process management can ensure a smooth and efficient operation of a program.Linux process management is similar to UNIX's process management. It includes

This document is a translation of section 1.1 of the IBM Redbook Linux Performanceand Tuning guidelines.Original address:http://www.redbooks.ibm.com/redpapers/pdfs/redp4285.pdfOriginal Eduardo Ciliendo, Takechika Kunimasa, Byron BraswellThe translation is as follows:1.1 Linux Process ManagementProcess management is one of the most important functions of the operating system. Efficient process management can

Translation: Brother Fei ( http://hi.baidu.com/imlidapeng )All rights reserved, respect other people's labor results, please indicate the author and original source and this statement when reproduced.The original name: "Linux Performance and Tuning guidelines"Original address: http://www.redbooks.ibm.com/abstracts/redp4285.html-------------------------------------------------------------------------------------------What is the 1.1.1

author expects this book to give each reader a performance test experience and experience. Organizational structure of this book This book introduces the entire process of software performance testing and provides a general process model.PtgmAnd shows how to apply the model to the software

Unhandled Exception: Process performance counters are disabled Debug Error: Unhandled exception: System.InvalidOperationException: The process performance counter is disabled, so the requested operation cannot be performed Problem solving: Method One: Just fix the Windo

Performance TuningIt is undoubtedly a huge topic and a very important part of many projects. Performance Tuning is well known. After all, performance tuning covers too many aspects.ArticleLet's take a look at the process of performance tuning this huge project, and also look

Build high performanceASP. NETOne site Analyze the page processing process (front-end) InASP. NETWhen optimizing websitesASP. NETThat's enough. In the process of optimization, we usually first find out where the problem may exist, and then prove that the problem is to be solved. After confirmation, we will take some measures. SeriesArticleThe structure is as follows: first introduce the front-end optimiza

environment, interrupts are handled by each processor. Binding interrupts to a single processor can improve the performance of the system.1.10. What is a threadA thread is an execution unit that is produced in a process and runs in parallel with other threads in the same process. They share the same resources, such as memory, address space, open files, and so on