


A brief analysis of the MySQL database OLTP benchmark
sysbench is a very excellent benchmarking tool that can accurately simulate the disk I/O mode of the MySQL database storage engine InnoDB. . Therefore, based on this feature of sysbench, this tool will be used below to benchmark and verify the MySQL database's support from simple to complex transaction processing workloads.
Test scenario 1, OLTP read benchmark test
1) Prepare data
sysbench --test=oltp--mysql-table-engine=innodb --oltp-table -size=100000
--mysql-db=cbusdb --mysql-user=root prepare
2) OLTP random read consistency business scenario test verification
time sysbench --test=oltp --oltp-table-size=100000--mysql-db=cbusdb
--mysql-user=root --max-time=60--oltp-read-only -- max-requests=0 --num-threads=8 run
The above test simulates 8 concurrent threads, with a maximum request of 10,000 times/second, and lasts for 60 seconds to randomize a table with 100,000 pieces of data in a single table data set Read operation, the test results are as follows:
By simulating 8 concurrent users to perform consistent read operations on a table with 100,000 data items and combining it with the above figure, the following conclusions are drawn from the analysis :
1) A total of 766094 read requests were executed within 60 seconds, 109442 update and other types of requests were executed, QPS: 12765;
2) A total of 54721 transaction operations were executed within 60 seconds, TPS: 911, success rate 100%;
3) The minimum execution time of each transaction is 2.98ms, the maximum time is 184.5ms, and the average execution time is 8.76ms.
Basic configuration information of the running environment for the above test results:
1) Virtual machine 2 CPUs, 2G memory, 20G storage space;
2) MySQL database parameters are not optimized, Adjustment.
Test scenario two, OLTP mixed type load test
Simulate OLTP random reading and writing (update, delete, insert):
sysbench --test=oltp--mysql -table-engine=innodb --oltp-table-size=10000
--mysql-db=cbusdb --mysql-user=root--max-time=60
-- oltp-nontrx-mode=update_key--max-requests=0 --num-threads=8 run
The test results are as follows:

By simulating 8 Concurrent users simulated a complex mixed workload test on a table with 100,000 data items and combined with the above figure, the analysis came to the following conclusions:
1) A total of 233268 read requests and 83260 write requests were executed in 60 seconds. times, other types of requests: 33309, QPS: 5273;
2) A total of 16647 transaction operations were executed within 60s, TPS: 277, the number of deadlocks caused by lock conflicts was 15, and the transaction success rate was 99.91% ;
3) The minimum execution time of each transaction is 8.19ms, the maximum time is 1299.78ms, and the average execution time is 28.82ms.
Basic configuration information of the running environment for the above test results:
1) Virtual machine 2 CPUs, 2G memory, 20G storage space;
2) MySQL database parameters are not optimized, Adjustment.

PHPisusedforsendingemailsduetoitsintegrationwithservermailservicesandexternalSMTPproviders,automatingnotificationsandmarketingcampaigns.1)SetupyourPHPenvironmentwithawebserverandPHP,ensuringthemailfunctionisenabled.2)UseabasicscriptwithPHP'smailfunct

The best way to send emails is to use the PHPMailer library. 1) Using the mail() function is simple but unreliable, which may cause emails to enter spam or cannot be delivered. 2) PHPMailer provides better control and reliability, and supports HTML mail, attachments and SMTP authentication. 3) Make sure SMTP settings are configured correctly and encryption (such as STARTTLS or SSL/TLS) is used to enhance security. 4) For large amounts of emails, consider using a mail queue system to optimize performance.

CustomheadersandadvancedfeaturesinPHPemailenhancefunctionalityandreliability.1)Customheadersaddmetadatafortrackingandcategorization.2)HTMLemailsallowformattingandinteractivity.3)AttachmentscanbesentusinglibrarieslikePHPMailer.4)SMTPauthenticationimpr

Sending mail using PHP and SMTP can be achieved through the PHPMailer library. 1) Install and configure PHPMailer, 2) Set SMTP server details, 3) Define the email content, 4) Send emails and handle errors. Use this method to ensure the reliability and security of emails.

ThebestapproachforsendingemailsinPHPisusingthePHPMailerlibraryduetoitsreliability,featurerichness,andeaseofuse.PHPMailersupportsSMTP,providesdetailederrorhandling,allowssendingHTMLandplaintextemails,supportsattachments,andenhancessecurity.Foroptimalu

The reason for using Dependency Injection (DI) is that it promotes loose coupling, testability, and maintainability of the code. 1) Use constructor to inject dependencies, 2) Avoid using service locators, 3) Use dependency injection containers to manage dependencies, 4) Improve testability through injecting dependencies, 5) Avoid over-injection dependencies, 6) Consider the impact of DI on performance.

PHPperformancetuningiscrucialbecauseitenhancesspeedandefficiency,whicharevitalforwebapplications.1)CachingwithAPCureducesdatabaseloadandimprovesresponsetimes.2)Optimizingdatabasequeriesbyselectingnecessarycolumnsandusingindexingspeedsupdataretrieval.

ThebestpracticesforsendingemailssecurelyinPHPinclude:1)UsingsecureconfigurationswithSMTPandSTARTTLSencryption,2)Validatingandsanitizinginputstopreventinjectionattacks,3)EncryptingsensitivedatawithinemailsusingOpenSSL,4)Properlyhandlingemailheaderstoa


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

Dreamweaver Mac version
Visual web development tools

SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.

SublimeText3 Chinese version
Chinese version, very easy to use

MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software
