1. Use SSDs: Solid State Drives offer faster read/write speeds compared to traditional hard drives. Therefore, using SSDs can significantly boost the performance of your OpenVZ containers.
1. Optimize the kernel: OpenVZ uses a modified Linux kernel which contains the containerization technology. You can tweak the kernel parameters to boost performance. Some of the kernel parameters that you can tweak include disc scheduler, filesystem type, swappiness, among others.
1. Use proper resource allocation: One of the reasons for poor performance in OpenVZ containers is improper resource allocation. Make sure to allocate enough resources (CPU, RAM, etc.) to your containers.
1. Update regularly: Make sure to regularly update your OpenVZ server so as to benefit from the latest features, performance enhancements, and security updates.
1. Network optimization: Network performance can have a significant effect on OpenVZ performance. Make sure to optimize network throughput for better performance.
1. Use lightweight software: Always use lightweight software and applications inside your containers to ensure more resources are available for your main application/tasks.
1. Cleanup unnecessary services: There may be unnecessary services running inside your containers. Regularly check and disable unnecessary services to free up system resources.
1. Optimize the database: If you are running a database inside your containers, make sure to optimize the database settings to suit your workload.
1. Use caching: Use caching to reduce disk I/O and network I/O. There are various types of caching mechanisms available like disc cache, system cache, etc.
1. Use the latest version of OpenVZ: Always use the latest version of OpenVZ as it may contain performance enhancements and improvements.
