First, the main method of neural network performance tuning the technique of data augmented image preprocessing network initialization training The selection of activation function different regularization methods from the perspective of data integration of multiple depth networks
1. Data augmentation
The generalization ability of the model can be improved by increasing the amount of data without changing t
rich, powerful, and flexible, and you can do a variety of tasks with it, and in this article we'll discuss some tips for improving the performance of Linux servers.1. Tuning the Linux kernel elevator algorithm for disk I/OAfter selecting the file system, there are some kernel and mount options that may affect its performance, one of which is the elevator algorit
Go language Development (eight), go Language program testing and performance tuning
Introduction of the Go Language Automation testing Framework
1. Introduction to Automated testing framework
The testing of the Go Language standard package provides a framework for unit testing (functional testing) and a common approach to performance testing (stress testing) that
A collection of Java performance tuning tipsBrother LianResources available for program utilization ( memory,CPU time, network bandwidth, etc. ) is limited, the goal of optimization is to allow the program to complete the scheduled tasks with as few resources as possible. Optimization usually consists of two parts: reducing the volume of the Code and improving the efficiency of the Code. The main discussion
In the project, we are busy with the implementation of the function, the overall performance of the app is poor. Every page load is stuck. The summer vacation is coming soon, and the project team has specially arranged a version to improve the performance. The version hasn't started yet, and I'm here to record some of the performance
We are going to discuss with you today that we will correctly resolve the 12 difficult questions about DB2 performance tuning. If you are curious about the 12 difficult questions about DB2 performance tuning, the following articles will unveil its secrets. The following is a detailed description of the article. I hope
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We can also use the Dbms_workload_repository package to complete the baseline, the default settings and other operations.ADDM (Automatic Database diagnostic Monitor AWR)Oracle is an internal consulting system, can automatically complete the most database of some optimization recommendations, giveSQLThe optimization, the creation of the index, the collection of statistics and other suggestions.ADDM report Generation:Sqlplus>@?/rdbms/addmrpt.sqlThe most important part of Oracle
of disk sorting will be greatly increased. This is mainly because at the end of the month, users will make statistics on the transaction data for the month. So at the beginning of the month, because of the number of transactions, so there will be more disk sorting occurs. In this case, it is necessary for the database administrator to adjust the relevant parameters. However, this adjustment is a temporary adjustment, until the cycle has passed, still need to transfer the parameters back. Only i
not offline, because of the risk, so the system is more and more complex, not only maintenance difficulties, system performance is getting worse) system architecture and implementation of the performance impact: A Web application is naturally inseparable from the application (Web Applic ation) and Web application Server (Web server), Web server We control the tu
the "CPU" button to start a CPU profiling session, VisualVM will detect all applicationsThe method that is called. When entering a method, the thread issues a "method entry" event when exiting the methodA "Method Exit" event is also issued, and these events contain timestamps. Then VisualVM will put eachThe total execution time and number of invocations of the called method are displayed according to the run-time length.In addition, we can filter the analysis results by the method name filter b
Runnable because the subclass will have its own property creation that requires more overheadControl maximum concurrency: Use Java's executors class to control the thread pool maximum thread concurrency through Executors.newfixedthreadpool (nthreads).HTTP requests increase timeout, the database caches HTTP response, and the cache expiration time is determined based on the Cache-control domain in the HTTP cast message.frequently accessed, or once access consumes a large data cache.LayoutUse abst
Today we will mainly talk about the DB2 Performance Tuning design and configuration of your database. There are many database design and configuration options that can affect the query performance. For more suggestions on Database Design, see the "Planning your Physical Database Design" Best Practices article.
Use constraints of DB2
Tags: comparing field name performance created description RMS emp_table style 5.7Background: The author's source data a table about 7000多万条, data size 36G, index 6G, add up table space has 40g+, similar table has 4, a total of more than 200 million Database MySQL, engine for InnoDB, version 5.7, server memory 256G, physical memory several T, hardware parameters of the leverage, but processing these data trampled a lot of pits, because For not doing t
milliseconds) above and the maximum wait time as a reference. Using the information provided by Sys.sysprocesses to count, about sys.sysprocesses use can refer to "SQL Server performance tuning from user session state analysis". This view listens for blocking information over a period of time. You can set a monitor statement to run every 10 seconds, storing blocking and blocking.Thoughts are as follows:--F
data, empirical data, and disk nominal values, it is not difficult to identify potential or already occurring problems with disk I/O when necessary, using the CPU, memory, and swap partitions. But how to avoid and solve these problems? This requires knowledge and technology for disk I/O performance optimization. Limited to the topic and length of this article, only a few commonly used optimization methods for readers to reference:1. Adjust the data l
Because the official BookPerformanceTuning section does not index by configuration item, it cannot achieve quick query. So I re-organized the original text with the configuration item drive and added some of my own understandings. If there is any error, please correct me. Configuration Optimization zookeeper. session. timeout default value: 3 minutes (180000 ms) Description: RegionSe
Because the Performance Tuning
can pay attention to the 0.9 release released soon. The developer also rewritten a set of consumer in Java. Combine the two sets of APIs and remove the dependency on zookeeper. It is said that performance has greatly improved OH ~ ~
list of all parameter configurationsBroker default parameters and configurable list of all parameters:http://blog.csdn.net/lizhitao/article/details/25667831Kafka principle, basic concept, broker,producer,consumer,top
The DB2 tutorial you are looking at is: IBM DB2 basic Performance tuning. Buffer pool
If you have experience using DB2 UDB, you should know that the buffer pool is a space in memory that is allocated separately to the DB2 database manager, allowing it to add new data to the database or to respond to a query that returns a buffer from the disk to some data data pages.Because accessing data from memory is bo
Tags: different issues lob STR Peak Multi-table BSP must not1.MySQL Performance Tuning IdeasWhat if a server has a long time load too high/ periodic load is too large , or occasionally stuck how to handle ? is it a cyclical change or an occasional problem ? is a problem with overall server performance , or the question of a single statement? ? specific to a sing
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