sql server performance counters

very deep, that is, more and more practical problems, have to have theoretical knowledge to support,But it is often theoretically said that the situation does not appear frequently or even if there is no attention, there is time to neglect some theoretical knowledge.For the problems encountered, if you really want to find out, still have some theoretical knowledge to do the groundwork. Many times, often after encountering problems, recalled once good seems to have seen this aspect of theoretica

Tags: Microsoft CTI object Complex problem: Lis use parameter BinThis article belongs to theUnderstand the mysteries of performance-slow in applications, fast in SSMS"seriesNext: Understanding the Mysteries of performance-application slow, SSMs fast (5)--case: How to deal with parameter sniffing We put aside the argument sniffing topic and went back to the original point of concern in this series: Why is th

The company database grows with time, the data is more and more, the query speed is also more and more slow. Into the database to see a bit, hundreds of thousands of of the data, the query is really time-consuming.To improve the query performance of SQL, we generally consider the index as the first consideration. In fact, in addition to the establishment of the index, when we are under the

=============================Problem description======There's always warning unable to add these counter when you open perfmon: "But we can still see the interface, click +, don't see memory,physicaldisk,network Interface,logi c Disk, SQL Server.Solution Solutions==========1. Right-click cmd, select Run as Administrator, and run the following command line to rebuild Perfmon counter---------------LODCTR/S: "C:\windows\system32\perf-backup1.ini"CD C:\Wi

New PerformanceCounter ("Web Service" "CurrentConnections" " Default Web Site","10.1.254.103"); Response.writeline (PC. NextValue ()); Thread.Sleep (+); Response.writeline (PC. NextValue ());1. Using system.diagnostics required;2. In the local server to establish a remote host with the same account password, the remote Host account password needs to performance Monitor users and Administrators group;(You m

C # Reading remote host performance counters, PerformanceCounter pc = new PerformanceCounter("Web Service", "Current Connections", "Default Web Site","10.1.254.103");Response.WriteLine(pc.NextValue());Thread.Sleep(1000);Response.WriteLine(pc.NextValue()); 1. using System. Diagnostics is required; 2. Create an account and password the same as that on the remote host on the local

Tags: Data Warehouse res warehouse IMA Misc SYS cell nbsp HighlightTo configure the Data collector: 1. Create a login and map roles 2. Configuring the Management Data Warehouse 3. Create collection sets, collection items----msdb data store sp_syscollector_create ... 4. Automatically configure the related job Specific steps: After creating the diagram: To configure Data collection: The refresh looks like this: The method created: Use msdb go declare @collectionsetid int --return val

Original: SQL Server R2 Performance counter detailed list (i)SQL Server Backup Device counters:Can monitor the Microsoft SQL Server backup device for backup and restore operations

after you've processed historical data and report data, then add these new hardware, such as faster CPUs and hard drives, larger memory, and so on, but add new hardware postscript to modify your SQL Server configuration to accommodate these new hardware, such as opening/ 3G switch to use more memory. Scale out when scaling the up does isn't suffice or is cost-prohibitive. Use horizontal expansion When yo

specific performance indicators of SQLSERVER, you need to use the following counters Processor: % Processor Time: The average should be lower than 75% (preferably lower than 50%) System: Processor Queue Length: Each logical CPU should be less than 2 on average. For example, on a 2 logical CPU machine, it should be kept at 4 Memory-Pages/sec: The average should be less than 20 (preferably less than 15%) Mem

,t.text from sys.dm_exec_query_stats as s -information about statements cross apply Sys.dm_ Exec_sql_text (S.sql_handle) as T ORDER by avgtotal Desc --Evaluation of database IO select * from Sys.dm_io_pending_io_requests --Request view of suspend IO select * from Sys.dm_io_ Virtual_file_stats ((Select db_id (' AdventureWorks2014 '), null) --function returns I/O statistics for data and log files- -The description file is suspended Select S.file_id,r.io_pending from sys.dm_io_pend

stress treatment measures, often results will be unsatisfactory. Think like Query OptimizerIn every field there are rules in their domain, and most simply, if you do not conform to the C # specification for programming, such as using keywords incorrectly, then the compilation will be an error. Of course, there will be some hidden rules in each area, and some people will say is the so-called "unspoken rules", such rules are often not materializing, such as you do not meet the best practice to wr

one of the most critical factors in SQL Server performance. The relationship between memory and I/O subsystem is also a very important factor. For example, in a system with frequent I/O operations, the more available memory SQL Server uses to cache data, the less physical I

We can use set statistics Io and set statistics time to analyze the performance of T-SQL statements. The method is as follows: In the SQL Server Query analyzer, run: Set statistics profile onset statistics Io onset statistics time ongo -- // The SQL statement to

Requirements DescriptionIn a production environment, it is often necessary to collect data to locate a problem or to form a baseline.There are many ways to solve the data acquisition in SQL Server, such as trace, Profile, SQLdiag, extended events and so on.Several scenarios have pros and cons, with the beginning of the SQL Server2012 version, Microsoft's start to

Label:The above article mentions that win's performance Monitor is a necessary tool to monitor database performance, and then I will introduce some common monitoring indicators, in fact, the disk, CPU, memory and other hardware operating indicators and the database itself like the lock Ah, the number of user connections Ah, There are parameter indicators that need attention according to their own business d

Is it possible to answer this question in just a few seconds? You may try to view the performance counters in Performance Monitor PerfMon. There are about 1000 counters with different names. You may ask: "Skipped Ghosted Records/sec" number of phantom Records Skipped per second) = 10. Is this value good or bad? The cor

In earlier articles, the detect methodology in performance tuning was mentioned, and the Detect methodology was briefly reviewed here.Discover the problem: finding problemsExplore The conditions: Reasons to exploreTrack down possible approaches: providing a possible solutionExecute the most likely approach: perform the best possible solutionCheck of Success: Confirm success (if not successful, repeat the above steps)Tie up Loose Ends: complete Remaini

Tags: ber write amp order parameter IO performance HDD persistence anotherThis article focuses on common metrics for using Performance Monitor to monitor SQL Server under Windows, including the buffer Cache hit Ratio, pages/sec, Available Bytes, Disk Time, AVG. Disk Queue Length, Processor time, Processor queue Length,

Query OptimizerThere are rules in each field. In the simplest way, if you do not conform to the C # specification for programming, such as incorrect keyword usage, an error will be reported during compilation. Of course, there are some hidden rules in each field, and some people may say that they are "hidden rules". These rules are often not clear. For example, if you do not conform to the best practices to write a program, compilation will not report an error, but the