jvm profiler

Tags: blog http using ar for file data art SP/******** permissions required to run SQL Server Profiler (performance) *********/--eg.--Use the Trace account (performancetest) to track SQL Server events.--Create a Trace login account (performancetest) and grant its ALTER trace and view SERVER State permissions.Use MasterCREATE LOGIN performancetest with password= ' [email protected] ';GOGRANT ALTER TRACE to Performancetest;GRANT VIEW SERVER state to Per

: Improve the performance of the expensive query itself; Reduce the overall pressure on the system resources; less database blocking; The more expensive queries can be divided into the following two categories: Word execution: The single execution cost of the query is large; Multiple executions: The query itself costs little, but the repeated execution of the query leads to pressure on the system resources; 　　1, a single execution of large-cost queryYou ca

NHibernate Profiler is a tool that can monitor SQL statements in NHibernate1. Download NHibernate Profiler2. Add a reference to your NHibernate project (below the NHibernate Profiler root directory)HibernatingRhinos.Profiler.Appender.dll3. Configure your application configuration file, my is Web service, ie. config filelog4net> Appendername= "Nhprofappender"type= "HibernatingRhinos.Profiler.Appender.NHibern

P6spy combined with SQL profiler Configuration P6spy is a dynamic monitoring framework for database access. It has been very mature for a long time. p6spy simulates a standard JDBC driver and acts as a proxy for the real underlying JDBC driver. That is to say, we only need to configure the JDBC driver used in the system as the p6spy driver, and configure the realdriver in the p6spy configuration as the actual JDBC driver, so that we can use its p

SQL Server Profiler is a performance monitoring tool for MS SQL. You can use this tool to find the SQL statements to be optimized, and then use the database engine optimization advisor tool to help optimize the database. SQL Server Profiler usage Click Start -- program -- Microsoft SQL Server 2005 -- performance tool -- SQL Server Profiler For example The

As a performance tool of the Microsoft SQL Server database series, SQL Server Profiler can track the running status of databases in real time and find slow queries or deadlocked SQL statements, to optimize the system. This article describes how to use Silverlight to monitor SQL Server Profiler in real time (the database environment uses SQL Server 2005 as an example) First, let's take a look at the SQL Ser

In use. NET to start and develop the application quickly, the next problem may be the performance tuning aspects of the program, and performance tuning can sometimes involve all aspects of the problem, such as the program host system, database, network environment, and so on, and when the program is unusually large and complex, performance tuning will become even more impossible. This series of articles will mainly introduce some. NET performance tuning tools, Web performance optimization rules

Tags: using OS io file data ar art divI. How SQL Server Profiler is used1. Click Start-Program--microsoft SQL Server 2005--Performance tool--sql Server Profiler, such as:2. Pop up the SQL Server Profiler window, such as:3. In the Work window, click "File---" New trace (N) ... "", Pop Up the Database Connection dialog window, enter the Tracking database server nam

JVM advanced features-2. Distribution, layout, access process, and JVM layout of jvm objects in the heap After introducing the data area of the jvm runtime, I will explain other details about the data in the memory to see how they are created, laid out, and accessed. 　　I. Object Creation 1. Object allocation There ar

In two or more SQL server processes, a deadlock occurs when each process locks the resources that other processes attempt to lock. For example,The process process1 holds one exclusive lock (x) for Table1, and process1 requests one exclusive lock (x) for Table2 ),The process process2 holds one exclusive lock (x) for Table2, and process2 requests one exclusive lock (x) for Table1) In this case, a deadlock occurs. Unless an external process is disconnected, the two transactions in the deadlock will

It's like stripping. net syntax sugar tool (reflector and so on) a lot of the same, we can be used for analysis. there are many tools for net program performance, such as the performance analysis tool provided by vs introduced in the previous blog debuglzq. In addition, common tools include CLR profiler and windbg. 　　Vs built-in Performance AnalysisYou can quickly find the bottleneck code and support multithreading. 　　WindbgI will not talk about it mo

SQL Profiler Data columns SQL Profiler allows you to select a data column when you create a template. These data columns represent the information that you want to return when you run the trace. The data that is displayed in SQL Profiler can be displayed in the order in which the event occurred, or grouped by one data column or combination of data columns. For e

Tags: How to do version sharing www. Select HTTPS Choose Index RttiSQL Server Profiler can detect statements executed on the data, especially if some projects do not directly use SQL statements, directly using the ORM framework of the system to process the database project, when debugging SQL statements, it is very helpful.Previously wrote the article "SQL Server Profiler Tracking database deadlock" Using S

Workarounds for SQL Server Profiler cannot be paused and stoppedAlthough SQL Server Profiler works well, there is an issue where you cannot pause and stop after you start profiler on the local database (locally) (Once you pause or stop for a long time), this problem occurs primarily because profiler uses the install SQ

[JVM] 1. jvm VM parameters-X and JVM-x Options that begin with-X are non-standard (not guaranteed to be supported on all VM implementations), and are subject to change without notice in subsequent releases of the JDK.Non-standard options starting with-X (cannot be guaranteed to be supported by all JVM implementations)

play the engine.Web-inspector inside the Cpu-profilor module can be very good evaluation of a JS function more than 10 years of the total project ratio, so you can stare at the top of the function to optimize. However, the native Web-inspector only gives the JS function's execution occupancy ratio, and does not list whether the function has been optimized, and if not, what the reason is.After reading the JS engine V8 code, we present these very critical/useful information to the code farmer thr

Some time ago, I had a performance problem with my website, and sometimes the page was very slow to open. It would take more than 10 seconds. I tried a lot of methods, including cache, disable viewstate, and Disable debug mode. The improvements were not obvious. Later, I ran into SQL Server Profiler to check the cause: a slow query dragged down the entire page. Later, the query was optimized, but not many improvements were made. Finally, an index i

SQL Server Profiler provides a blocked Process report event, which records blocking tasks that exceed the specified time. With this event, we can record the blocking information of the database. Next let's take a look at how to use blocked processreport: To use blocked Process report, you must configure the threshold and report generation frequency. Use the sp_configure command to configure the blocked process threshold option (in seconds ). By defa

Article Source: Http://www.mongodb.org/display/DOCS/Database+Profiler Just contact with MongoDB, once used profile, but did not read this document in detail, may be the size of their own system is not big enough, if the volume of visits will inevitably let us look at some performance problems, this time we will consider the MongoDB Profile, the following start the detailed analysis: What is the database Profiler