what pool size

When a physical connection is established, you need to shake hands with the server, parse the connection string, authorize, and check constraints. After the physical connection is established, these operations will not be performed. These operations

Provide a detailed description of the sqlconnection pool. If you need it, please refer to it. Provide a detailed description of the sqlconnection pool. If you need it, please refer to it. When a physical connection is established, You need to

10:25:40 Like a dream @-01py Http://bulo.163.com/article/-01py-MUWXHw.html Copy Comment  ASE. NET data provider Mysqldirect. NET data provider ODBC. NET data provider Ole db. NET data provider Oracle. NET data provider-from Microsoft Oracle. NET

"Original" https://www.toutiao.com/i6566022142666736131/When we use threads to create a thread, it's easy to implement, but there's a problem:If the number of concurrent threads is large, and each thread is executing a short task, then the frequent

InnoDB maintains a cache of data and index information to the memory of the storage area called buffer pool, which caches the most recently accessed data. By configuring the parameters of each buffer pool, we can significantly improve the

Thread Pool task execution process We started from an API to learn how Executor processes task queues. Java.util.concurrent.Executor.exe cute (Runnable) Executes the given task sometime in the future. the task may execute in a new thread or in an

Java Multithreading Series--"Juc thread pool" 04 thread pool principle (iii)This chapter describes the life cycle of the thread pool. In the Java Multithreading Series-Basic concepts of 01, we've introduced threads in 5 states: New state, ready

Original article: http://www.codeproject.com/KB/dotnet/ADONET_ConnectionPooling.aspx 1: Merge database connections Establishing a connection to the database server consumes a lot of system resources. If a system needs to query a database

private static Executorservice exec = new Threadpoolexecutor (8, 8, 0L,Timeunit.milliseconds, New linkedblockingqueue (100000),New Threadpoolexecutor.callerrunspolicy ());First, IntroductionThe thread pool class is

private static Executorservice exec = new Threadpoolexecutor (8, 8, 0L, timeunit.milliseconds, New Linkedblockingq Ueue (100000),New Threadpoolexecutor.callerrunspolicy ());First, IntroductionThe thread pool class is

Thread pool Task Execution flowWe start with an API to contact executor how the task queue is handled.Java.util.concurrent.Executor.execute (Runnable) Executes the given task sometime in the future. The task may execute with a new thread or

3.6 Connection Pool Similar to Microsoft's previous data access technology, ADO. NET includes built-in support for connection pooling. 3.6.1 Connection handle and physical connection If you are using Visual Studio, you can use the Visual Studio

This parameter is mainly used to cache indexes, data, and buffer when inserting innodb tables.Default value: 128 MThe size of the dedicated mysql server: 70%-80% of the operating system memory.After MySQL 5.7.5, Innodb_buffer_pool_size can be

An estimate formula was found in server Performance IO optimization:Number of best threads = ((thread waiting time + thread CPU time)/thread CPU Time) * Number of CPUsFor example, the average CPU run time per thread is 0.5s, while the thread wait

ASP. net c # This prompt appears when you use sqldatareader to read data. I found some answers online and did not solve the problem. Finally, I found the answer to Microsoft's petshop.I used sqldatareader in a loop:Using (sqldatareader reader =

Reprint Source:http://www.cnblogs.com/dolphin0520/p/3932921.html In the previous article, we created a thread when we used the thread, so it was easy to implement, but there was a problem: If you have a large number of concurrent threads, and each

Original: http://www.mysqlperformanceblog.com/2006/05/30/innodb-memory-usage/There are a lot of questions about how InnoDB allocates memory. Here I try to explain how memory is allocated at startup. The important constants are listed

[Note] InnoDB memory allocation and innodb Memory Allocation Original article: http://www.mysqlperformanceblog.com/2006/05/30/innodb-memory-usage/ There are many problems related to how InnoDB allocates memory. Here I try to explain the memory

Before assigning the appropriate size to the database with the new automatic memory management feature, you must first find the current amount of memory allocated to SGA and PGA. But it does not mean that sga _ Before assigning the appropriate size

There are four connection types: sqlconnection, oledbconnection, odbcconnection, and oracleconnection. Objects in the sqlconnection class are connected to the SQL Server database; objects in the oracleconnection class are connected to the Oracle