performance monitor没有SQL Server性能计数器
Windows Server 2008 R2 En Enterprise 64bitSQL Server 2008 R2 En Enterprise 64bit症状：在performance monitor中看不到Sql Server相关的性能计数器解决办法： Rebuilding the coun...
high performance program (SSE4.2 intrin instruction)
In file included from mm_lddqu.si128.c:2:0:/usr/local/lib/gcc/x86_64-redhat-linux/4.7.1/include/nmmintrin.h:31:3: error: #error "SSE4.2 instruction se...
ORCFILE IN HDP 2: BETTER COMPRESSION, BETTER PERFORMANCE
ORCFILE IN HDP 2: BETTER COMPRESSION, BETTER PERFORMANCE by Carter Shanklin The upcoming Hive 0.12 is set to bring some great ...
elasticsearch in docker/ and aggregation,,performance tune ;throughout
Docker环境中Elasticsearch的安装]https://wenchao.ren/archives/category/elasticsearch/page/2[ElasticSearch Aggregations 分析]https://yq.aliyun.com/articles/6025...
运行mysql时，提示Table ‘performance_schema.session_variables’ doesn’t exist 解决的方法是：
第一步：在管理员命令中输入： mysql_upgrade -u root -p--force 第二步：重新启动mysql的服务： net stop mysqlnet start mysql 再次运行mysql，就解决了。 注意，两步缺一不可。...
Android Performance Optimization
1.zipalign2.ui优化3.package size4.RenderScript5.Resource Shrinking & Code Shrinking6.java code1).LayoutInflator inflater(R.layout.xml, parent,false)...
分类模型的性能评价指标（Classification Model Performance Evaluation Metric）
二分类模型的预测结果分为四种情况（正类为1，反类为0）： TP(True Positive)：预测为正类，且预测正确（真实为1，预测也为1） FP(False Positive)：预测为正类，但预测错误（真实为0，预测为1） TN(True Negative)：预测为负类，且预测正确（真实为0，...
Monitor and diagnose performance in Java SE 6--转载
Java SE 6 provides an in-depth focus on performance, offering expanded tools for managing and monitoring applications and for diagnosing common proble...
Mysql 当安装完成后不执行 mysql 和 performance_schema 数据库
Mysql问题 ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES) Mysql执行时没有 mysql 和 performance_schema 数据库问题一：之前卸载未卸载干净问题...
Azure CosmosDB (4) 在一致性(Consistency)可用性(Availability)和性能(Performance)之间的权衡
《Windows Azure Platform 系列文章目录》我个人感觉，这个概念和分布式系统中的CAP原则是类似的：CAP原则指的是在一个分布式系统中，Consistency（一致性）、 Availability（可用性）、Partition tolerance（分区容错性），三者不可得兼Azur...
Table 'performance_schema.session_variables' doesn't exist
出现标题所示错误时设置如下参数可以解决！set @@global.show_compatibility_56=ON;
Anroid性能优化系列——Improving Layout Performance（一）
（请关注我们的微信公众号：Java和Android大牛频道） 本文翻译自Google官方文档 Layouts是Android应用里直接影响用户体验的一个关键部分。如果Layout设计的不好，可能导致你的应用大量的内存占用而导致UI响应很慢。Android SDK提供了工具帮...
HTML5的学习--performance获取加载时间的工具
前段时间因为项目需要获取页面加载的时间，就去看了下HTML5中的performane。可以用其获得页面详细的加载时间。关于performance的详细内容可以查看 http://www.cnblogs.com/CraryPrimitiveMan/p/3795086.html之后用performane...
转贴---Performance Counter（包含最全的Windows计数器解释）
http://support.smartbear.com/viewarticle/55773/这个Article中介绍了一个新工具，TestComplete，把其中涉及到性能计数器的部分摘抄出来了。分三部分1， Windows Performance CountersDescribes counte...
mysql优化---优化工具MySQL performance tuning primer script
MySQL performance tuning primer script一个简单好用的mysql优化工具,其实一个shell脚本 下载： $ wget http://www.day32.com/MySQL/tuning-primer.sh 运行 $ sh tuning-primer.sh all...
9 tools to help you with Java Performance Tuning
9 tools to help you with Java Performance Tuning Java Performance Tuning tools to help you improve your Java Code Previously I wrote an...
Spring Boot Memory Performance
The Performance Zone is brought to you in partnership with New Relic. Quickly learn how to use Docker and containers in general to create packaged ima...
Json.NET Performance Tips
原文： http://www.newtonsoft.com/json/help/html/Performance.htmTo keep an application consistently fast, it is important to minimize the amount of time t...
14.3 Using Partitioned Indexes for Performance 使用分区索引
原文： Similar to partitioned tables, partitioned indexesimprove manageability, availability, performance, and scalability. They caneither be partitioned...
14.2 Using Function-based Indexes for Performance 使用基于函数的索引
原文： A function-based index includescolumns that are either transformed by a function, such as the UPPER function, or included in an expression, such a...