Shulou(Shulou.com)06/03 Report--

How does Cloud Virtual Machine manage databases? In the process of using and managing the database of Cloud Virtual Machine, we are afraid of encountering bottleneck problems, so we need to optimize the database performance at this time.

1. Reduce IO times

IO is always the most likely place for the database to encounter bottlenecks, which is determined by the responsibilities of the database. In most server database operations, more than 90% of the time is occupied by IO operations. Reducing IO times is a priority in optimization, and it is also the most effective optimization method.

2. Reduce CPU computation

In addition to IO bottlenecks, the optimization of CPU computation needs to be considered. Order by, group by,distinct, etc. are CPU consuming, and these operations are basically CPU processing data comparison operations in memory. When our IO optimization has reached a certain stage, reducing CPU computation has become an important goal of optimization.

3. Minimize sorting

Sorting consumes a lot of CPU resources of the Cloud Virtual Machine, so reducing sorting can greatly affect response time in scenarios with high cache hit rate and sufficient IO capacity.

For MySQL, there are many ways to reduce sorting, such as: optimizing by using indexes to sort: reducing the number of records involved in sorting, and not sorting data unnecessarily. Avoid resource-intensive operations.

4. Change SQL execution plan

For SQL statements, change the execution plan of SQL, let him try to "take fewer detours" and try to find the data we need through various "shortcuts" to achieve the goal of "reducing IO times" and "reducing CPU calculations."

It is very important to optimize the performance of cloud host database. On the one hand, it can improve the resource utilization rate, on the other hand, it can improve the service access speed and improve the user experience, so as to ensure the normal and stable operation of the service.

As a senior professional cloud computing service provider and cloud security service provider in the industry, it is committed to providing Cloud Virtual Machine for the majority of Internet enterprise users and enterprise users in traditional industries. Its products have the characteristics and advantages of "security and stability, simple and easy to use, high service availability and high cost performance." It is specially customized for enterprises to go to the cloud and can meet the rich and diversified application scenarios of users.

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