SQLITE与ACCESS性能简单测试
这段时间在做CMS（客户管理系统，不是内容管理）的访问管理功能，要求实现对服务提供设备，客户端，计费，权限认证等信息的存储统计，远程管理。要求系统发布要方便，远程管理软件要跑在WIN平台。考虑到系统规模，客户要求，最后选择了WINACCESS的方案，而最
这段时间在做CMS（客户管理系统，不是内容管理）的访问管理功能，要求实现对服务提供设备，客户端，计费，权限认证等信息的存储统计，远程管理。要求系统发布要方便，远程管理软件要跑在WIN平台。考虑到系统规模，客户要求，最后选择了WIN+ACCESS的方案，而最近又发现一个免费的SQLITE，而且可能在以后的手持设备上用，花点时间做了如下的简单性能测试。
ACCESS 插入性能测试：
平台：SYS:WINXP;CPU:2*1.6GHZ;RAM:1G;APP:VC+ADO
1.单条显式事务：
1 00条： 0.55S
1000条： 5s
10000条： 50s
2.单条非显式事务：
100条：31ms
1000条：156ms
10000条：1500ms
3.批量事务：
1 00条：16ms
1000条：141ms
10000条：1469ms
以上可以看出，ACCESS单条非显式事务插入的时间几乎和批量事务的插入时间一样。但是，单条非显式事务的
方式只能用单连接，如果有多个连接并发访问，则会出现严重问题，在一个链接插入后的相当长一段时间内（有时数S），其它链接都无法插入数据库。可以推理
ADO+ACCESS是采用了一种类似CACHE的做法缓存了操作，但是却一直锁住数据库。单条的显式事务可以保证多链接的访问，但是速度会慢很多，下面再对比一下
SQLITE的测试性能；
SQLITE PC平台插入性能测试：
平台：SYS:WINXP+VMWARE+FEDORA7(LINUX2.6.21)；CPU;1.6GHZ;RAM:412M; APP:C+SQLITE
1.单条显式事务（SQLITE默认为每个操作开启事务）
100条：0.587s
1000条：6.962s
10000条：56.004s
2.批量事务
100条：81ms（可能误差较大）
1000条：124ms
10000条：1257ms
SQLITE 嵌入式平台插入性能测试：
平台：SYS:LINUX2.6.14;CPU:HI3512 ARM9 200MHZ级别；RAM:32M,ROM:32M NOR FLASH;APP:C+SQLITE
1.单条显式事务（SQLITE默认为每个操作开启事务）
100条：1.98s
1000条：19.97s
10000条：34.63s
2.批量事务
100条：0.15s
1000条：0.89s
10000条：8.24s
在ARM+LINUX的平台，NOR FLASH较慢的写入速度应该是拉低插入速度的原因。
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
How to use sql if statement
Apr 09, 2025 pm 06:12 PM
SQL IF statements are used to conditionally execute SQL statements, with the syntax as: IF (condition) THEN {statement} ELSE {statement} END IF;. The condition can be any valid SQL expression, and if the condition is true, execute the THEN clause; if the condition is false, execute the ELSE clause. IF statements can be nested, allowing for more complex conditional checks.
Unable to log in to mysql as root
Apr 08, 2025 pm 04:54 PM
The main reasons why you cannot log in to MySQL as root are permission problems, configuration file errors, password inconsistent, socket file problems, or firewall interception. The solution includes: check whether the bind-address parameter in the configuration file is configured correctly. Check whether the root user permissions have been modified or deleted and reset. Verify that the password is accurate, including case and special characters. Check socket file permission settings and paths. Check that the firewall blocks connections to the MySQL server.
What are the benefits of multithreading in c#?
Apr 03, 2025 pm 02:51 PM
The advantage of multithreading is that it can improve performance and resource utilization, especially for processing large amounts of data or performing time-consuming operations. It allows multiple tasks to be performed simultaneously, improving efficiency. However, too many threads can lead to performance degradation, so you need to carefully select the number of threads based on the number of CPU cores and task characteristics. In addition, multi-threaded programming involves challenges such as deadlock and race conditions, which need to be solved using synchronization mechanisms, and requires solid knowledge of concurrent programming, weighing the pros and cons and using them with caution.
How to configure zend for apache
Apr 13, 2025 pm 12:57 PM
How to configure Zend in Apache? The steps to configure Zend Framework in an Apache Web Server are as follows: Install Zend Framework and extract it into the Web Server directory. Create a .htaccess file. Create the Zend application directory and add the index.php file. Configure the Zend application (application.ini). Restart the Apache Web server.
How to solve the 'Network Error' caused by Vue Axios across domains
Apr 07, 2025 pm 10:27 PM
Methods to solve the cross-domain problem of Vue Axios include: Configuring the CORS header on the server side using the Axios proxy using JSONP using WebSocket using the CORS plug-in
Summary of phpmyadmin vulnerabilities
Apr 10, 2025 pm 10:24 PM
The key to PHPMyAdmin security defense strategy is: 1. Use the latest version of PHPMyAdmin and regularly update PHP and MySQL; 2. Strictly control access rights, use .htaccess or web server access control; 3. Enable strong password and two-factor authentication; 4. Back up the database regularly; 5. Carefully check the configuration files to avoid exposing sensitive information; 6. Use Web Application Firewall (WAF); 7. Carry out security audits. These measures can effectively reduce the security risks caused by PHPMyAdmin due to improper configuration, over-old version or environmental security risks, and ensure the security of the database.
How to monitor Nginx SSL performance on Debian
Apr 12, 2025 pm 10:18 PM
This article describes how to effectively monitor the SSL performance of Nginx servers on Debian systems. We will use NginxExporter to export Nginx status data to Prometheus and then visually display it through Grafana. Step 1: Configuring Nginx First, we need to enable the stub_status module in the Nginx configuration file to obtain the status information of Nginx. Add the following snippet in your Nginx configuration file (usually located in /etc/nginx/nginx.conf or its include file): location/nginx_status{stub_status
What is apache server? What is apache server for?
Apr 13, 2025 am 11:57 AM
Apache server is a powerful web server software that acts as a bridge between browsers and website servers. 1. It handles HTTP requests and returns web page content based on requests; 2. Modular design allows extended functions, such as support for SSL encryption and dynamic web pages; 3. Configuration files (such as virtual host configurations) need to be carefully set to avoid security vulnerabilities, and optimize performance parameters, such as thread count and timeout time, in order to build high-performance and secure web applications.
