yourkit profiler

Examples of using the zf framework Database Tracker. Copy the code by calling the tracker method: $ Profiler $ Db-getProfiler (); copy the code as follows :? Php * How to use the tracker * introduces the Loader class (automatic loading class calls the tracker method) The code is as follows: $ Profiler = $ Db-> getProfiler (); The code is as follows: /*How to use a tracker*/ // Introduce the Loader cl

C # Language SpecificationRead Catalogue Objective: See where the optimization needs to start? Optimizations for the CPU: Optimization of the GPU Optimization of memory Update, use the Unity Profiler tool to detect memory Back to catalogue preface:When I first wrote this article, I chose a very earthy topic ... "Unity3d Optimization Full Analysis". Because this is a temporary spur to write the article, and the stateme

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 including database content, and to display SQL for database access (EF, EF codefirst, etc.). a

usage ) contains information about using Windows System Monitor to track resource usage in SQL Server. Monitoring Event (Monitoring events ) contains information about using SQL Server Profiler and SQL Trace to monitor SQL Server events. data collection (Collection ) contains information about using the SQL Server Data Collector to obtain and save data that is collected fro

Python Performance analysisRead Catalogue Introduction to Tuning Simple example code for the Python event-based performance analyzer Analysis results of the Linux Statistical Performance Analyzer oprofile (http://oprofile.sourceforge.net/news/): The importance of performance analysis Content of performance analysis Memory consumption and memory leaks Risk of premature optimization Complexity of running time Performance Analysis Best Practices Back to

experiencing a memory leak, you need to think about three questions: does my page occupy too much memory? -Timeline Memory Viewing tool (Timeline memories view) and Chrome Task Manager can help you verify that you are using too much memory. Memory View tracks DOM node count, documents count, and JS event listener count during page rendering. As a rule of thumb: Avoid references to DOM elements that are no longer needed, remove unwanted event snooping, and keep in mind when storing chun

Recently, a high consumption statement/process was optimized on the database server, and it was found that a stored procedure was optimized and still appeared in profiler tracking. Take the procedure execution statement out of the profiler trace file, open a query window (spid=144), SET statistics IO on, and turn on the execution of the statement in Profiler trac

distributed transactions submitted 74. Distributed Transaction Coordinator, aborted transactions Total number of distributed transactions rolled back 75. Distributed Transaction Coordinator, active transactions Number of distributed transactions currently active 76. Distributed Transaction Coordinator, response time-average Average interval of distributed transactions from start to commit 77. SQL Server, cache manager, cache hit ratio: SQL Server cache zone hit rate 78. SQL Server, cache manage

* @paramintthe Status code * @paramstring * @returnvoid */function set_status_header ($code = $text = ") {Set_status_header ($code, $text); return $this;} --------------------------------/** * enable/disable ProFiler * allows you to turn on or disable the parser * @accesspublic * @parambool * @returnvoid */function enable_profiler ($val = TRUE) {$this-GT;ENABLE_PR Ofiler = (Is_bool ($val))? $val: True;return $this;} --------------------------------/*

event probe to review activities in SQL Server. For example, if the security administrator needs to know who has logged on to the server at any time, you can create an SQL event probe trail to provide a complete view of the users who have logged on to the server or logged out from the server. Subsequently, such information can be used for legal purposes to record activities and for technical purposes to track violations of security policies. To set an SQL event probe trace to track users who ha

occurs, diagnose the cause of the problem and respond correctly. This article provides step-by-steps guidelines for using publicly available tools such asSQL Server Profiler, Performance Monitor, DMV, SQL Server expansion eventsAndData CollectorTo diagnose and troubleshoot common performance issues.Copyright: This section is omitted, please respect other people's labor results canBrief introduction:The occasional slow run of SQL Server is an uncommon

In general, we use Profiler to track the operation of SQL Server, and sometimes we need to do some regular tracking to check the health of SQL Server for a certain period of time, because profiler does not support scheduling, so you should find a way to For us to start a trace by setting up a job, this article describes the use of T-SQL statements to enable tracing to suit this requirement. Example of star

(*args, **kwargs) profile.disable () Finally: profile.print_stats () return profiled_func def get_number (): For x in Xrange (5000000): yield x @do_cprofile def expensive_function (): For x in Get_number (): i = x ^ x ^ x return ' Some result! ' # perform profiling result = Expensive_function () In the case of the above code, you should see something printed on the terminal, and the printed content is as follows: 5000003 function calls in 1.626 seconds Ord

Application tab, and then, in the Watch tab, in the Monitor label, tap Heap dump. To open a saved heap dump, choose File > Mount from the Main menu, and then locate the saved heap dump. Browse Open Heap Dump: Click Classes on the heap Dump toolbar to view a list of activity classes and corresponding instances. Double-click a class name to open the instance view to view the list of instances. Select an instance from the list to view a reference to the instance. After the heap dump is generated,

Diagnosing database performance problems as doctors diagnose patients, it is necessary to combine their own accumulated experience and rely on scientific diagnostic reports to determine exactly where the source of the problem is. In the previous three articles we introduced many methods to optimize database performance, although it is important to master the optimization skills, but the diagnosis database performance problem is the premise of optimization, this article describes how to diagnose

network latency and bandwidth throttling, it suddenly takes a second or less to select all invoices, and you need to investigate which network problems may disappear for the rest of the time.If the application still takes 10 seconds to load the results, then congratulations, you've eliminated 2 of the 4 issues again! Now you need to see where most of the processing time is.let's take a closer look at how to solve most of the spending during this time. You will need Wireshark or SQL

In the first section of this chapter we also mentioned the performance bottleneck of using the query Profiler to locate a query, and here we describe in detail the purpose of Profiling and how to use it. To optimize a query, we need to know exactly where this query's performance bottleneck is, is it consuming too much CPU, or does it require too many IO operations? To be able to understand this information clearly, in MySQL 5.0 and the MySQL 5.1 offic

This is the second phase of the PHP performance optimization series. How to Use the PEAR tool Benchmark to get the execution time of code or functions line by line This is the second phase of the PHP performance optimization series. How to Use the PEAR tool Benchmark to get the execution time of code or functions line by line This is the second phase of the PHP performance optimization series. How to Use the PEAR tool Benchmark to get the execution time of code or functions line by line.T

Tcmalloc Overview: TCMalloc (Thread-CachingMalloc) implements the same functions as the standard glibc library's malloc, but TCMalloc is much more efficient and faster than standard malloc. TCMalloc is one of the google-perftools tools (four gperftools are: TCMalloc, heap-checker, heap-profiler, and Tcmalloc Overview: TCMalloc (Thread-Caching Malloc) implements the same functions as the standard glibc library's malloc, but TCMalloc is much more effici

Instruments tips for use About Instruments official has a very useful user to use guide, of course if not accustomed to the official English can be found here in the text translated version of PDF see. Instruments is really a powerful tool, It is extremely convenient to collect data about the performance and behavior of one or more system processes and to keep track of the data generated over time. Different types of data can also be widely collected. The basic use of instrument tools is not des