spt tuning

Label:Original: SQL Server Performance Tuning Training IntroductionHello everybody, this is the first blog post I wrote in the blogging park, and the reason I want to open this blog is a record of my interest in MS SQL Technology learning. As a computer professional graduates, their own grasp of the technology always feel very superficial, Bo and not specialized, until now I find their interests, so I found a variety of MS SQL technology related docu

From January Google released 16 series of video on performance optimization, this period of time in the major communities have seen a lot of excellent articles about the optimization series. We have analyzed the causes of performance, shared how to optimize our applications, and introduced tools to help us detect performance issues.One of the tools that is described in some of the system performance tuning tools: TraceViewTraceView is an Android platf

This article mainly describes the problem of DB2 Performance Tuning. We mainly answer the problems in DB2 performance tuning in a one-Question-and-one manner, the following is a description of the DB2 Performance Tuning problem. I hope it will help you in your future studies. Hardware environment: AIX memory 8 GB) EMC140G) Hard Drive size 140 GB) Data Structure

Hard Canton: "iOS Performance Tuning Series" The third, continuously updated, welcome attention.iOS Performance Tuning series: Analyze static analysis describes how to find iOS memory leaks using the static analysis method, iOS Performance Tuning series: Dynamic analysis of memory leaks using instruments Explains the dynamic analysis of memory leaks using the ins

Hard Canton: "iOS Performance Tuning Series" fourth, is expected to be more than 20, continuously updated, welcome attention.Top two iOS Performance Tuning series: Analyze static Analysis, iOS Performance Tuning series: using instruments to dynamically analyze memory leaks focuses on memory leaks, the opposite of which is focused on objects that are over-disposed

ArticleDirectory Tuning business process engine: 1. Tracing: 2. trfc: 3. ccbpm inbound queue processing: A. Classic setting inbound processing with buffering (default ): B. Inbound processing without buffering: Queue assignments for inbound processing: A. One writable able queue: B. multiple queues (random ): C. multiple queues (content-specific ): References: Part-III of this series will focus on the B

DAGDGC Special Tuning stringImportant points of knowledge:1) The pitch from high to low is sorted by:Bagfedc2) Guitar Standard pitch is (1 to 6 chords) Ebgdae3) Guitar The same string, each grade difference, the difference is half a toneChord Tuning Method:1) The first chord (E->d): E is D, so the Second product of the first chord to call the E-tone, the empty string is D2) The second chord (B->a): B is a,

IOS Performance Tuning series: use Allocation to dynamically Analyze memory usage and optimize allocation Hardware wide: article 3 of the IOS Performance Tuning series, which is continuously updated. IOS Performance Tuning series: Analyze static analysis describes how to use static analysis to find IOS memory leaks. IOS Performance

IOS Performance Tuning series: Use Time Profiler to discover performance bottlenecks and tune profiler Hardware wide: The fifth article in the IOS Performance Tuning series, which is expected to be updated continuously over 20 articles. The last four articles focus on memory and Analyze memory leakage, zombie objects, and memory allocation. This article introduces the use of Time Profiler to start a true "p

Recently, due to Project Memory leakage, large-scale JVM performance tuning has been performed. , Now we will record the experience. I. JVM Memory Model and garbage collection Algorithm 1. According to the Java Virtual Machine specification, JVM divides the memory: New (young generation) Tenured (elder generation) Permanent generation (Perm) Among them, new and tenured are heap memory. The heap memory will be allocated from the memory specified b

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 section of the official Book does not

Recently, the company to do activities to promote, traffic explosion, the back-end server pressure Alexander, resulting in the user's request response time to prolong, the customer complained loud.In order to solve the problem as soon as possible, in arranging the staff to optimize the back-end code, consider adding varnish cache layer before nginx, only pass part of the dynamic request in the past, directly reduce the pressure of the back-end server.In actual use, really feel the power of varni

In general, MySQL optimization can be divided into two levels: one is Optimization at the MySQL level, such as SQL rewriting, index addition, and configuration of various MySQL parameters; the other layer is the operating system and hardware. Operating system-level optimization in general, MySQL optimization can be divided into two levels, one is on the MySQL-level optimization, such as SQL rewriting, index addition, the configuration of various MySQL parameters. The other layer is the optimizat

http://blog.csdn.net/innost/article/details/9008691Authorized by the author, published Tieto a young cow of a "programmer" masterpiece.Introduction to the Android System Performance tuning toolIn the software development process, presumably many readers have encountered the system performance problem. Several major steps to solve the system performance problem are: Evaluation: A large number of targeted testing system to obtain the appropriat

database-based processor), "user" can be used; set to "Memcache" you can use Memcache as the session processor (you need to specify the "--enable-memcache-session" compilation Option); Session.save_path = "/tmp"; The parameters passed to the storage processor. For files processors, this value is the path to the creation of the session data fileResources:Lamp system performance Tuning, part 1th: Understanding the Lamp architecturehttp://www.ibm.com/de

PrefaceA project in the development, testing, on-line, then the size of the user is still relatively small, so just on-line projects are generally stable performance. However, with the passage of time, the increase in the number of users, the increase in QPS and other factors will cause the project slowly show a half-day unresponsive situation. In the previous work also happened to encounter this process, at that time, the project carried out a lot of performance testing and