How about the performance of the shared server of Alibaba Cloud? Many students have some questions when they see the word "shared". What is a shared type? What is the difference between shared type and exclusive type? This article talks about the detailed introduction of Alibaba Cloud server sharing type and the selection method of sharing and exclusive? And the list of ECS instance specifications of shared and dedicated cloud servers:
The difference between Alibaba Cloud shared and exclusive
The main difference between the shared and exclusive Alibaba Cloud server is the CPU computing performance, as follows:
- Shared type: Each vCPU of Alibaba Cloud shared cloud server will be randomly assigned to any idle CPU hyperthread. The vCPUs of different instances will compete for physical CPU resources, which will lead to unstable computing performance during high load, and availability SLA guarantees , But no performance SLA guarantee. You can refer to the official Alibaba Cloud document ( Detailed Explanation of ECS Shared Instances ), the document description is very detailed, including the introduction of ECS shared instance specifications;
- Exclusive type: The exclusive type cloud server corresponding to the shared type, also known as the enterprise-level cloud server, does not appear to compete for resources during load, and the computing performance is more stable.
So, is it not a choice for shared cloud servers? Of course not. Many cloud servers used in this article are all entry-level shared cloud servers of Alibaba Cloud. After all, large Alibaba Cloud manufacturers will not be oversold, and they are very smooth in actual use. Especially the sixth-generation shared s6 instance newly launched by Alibaba Cloud. The s6 instance does not limit the CPU performance, and the CPU memory network performance has been greatly improved, and the price is very low, and the price is very high. Whether it is shared or exclusive, there are official events to choose from. Of course, if it is an enterprise-level application that requires high computing performance, this article recommends choosing a dedicated cloud server.
ECS shared and exclusive instance specifications
Alibaba Cloud ECS shared cloud server is also called entry-level cloud server, and exclusive cloud server is called enterprise-level cloud server. Although it is also available for enterprise-level individual users, entry-level and enterprise-level cloud servers correspond to ECS instances The specifications are as follows:
| Shared and exclusive | Instance specifications |
|---|---|
| Shared (entry level) | Shared standard type s6, shared basic type xn4, shared computing type n4, shared universal type mn4, shared memory type e4, etc. |
| Exclusive (enterprise level) | General purpose g6/g6, computing type c5/c6, memory type r5/r6, big data type, local SSD type, high frequency type, GPU computing type, FPGA computing type, flexible bare metal, etc. |
Finally, this article summarizes that the main difference between the shared and dedicated Alibaba Cloud is whether the CPU computing performance is stable. The shared cloud server may compete for physical CPU resources under high load; the dedicated cloud server has better computing performance. stable. In terms of price, shared cloud servers are cheaper, and exclusive ones are relatively more expensive.
For detailed performance parameters of various specifications of Alibaba Cloud Server, please refer to: ECS Cloud Server Performance Parameters Detailed Explanation-Alibaba Cloud
In fact, this article believes that the performance of the Alibaba Cloud ECS exclusive instance is also very good. This article uses the shared instance. Of course, the exclusive cloud server can be preferred for enterprise-level applications that require high computing performance.