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Standard S9 Instance Specifications
Last updated:2025-07-25 18:01:43
Standard S9 Instance Specifications
Last updated: 2025-07-25 18:01:43

Instance Type

Type
Sub-type
Description
Standard instances provide a balance of compute, memory, and network resources to accommodate most applications.

Standard Instance Family

Standard instances provide a balance of compute, memory, and network resources to accommodate most applications.

Standard S9

The Standard S9 instance is the latest generation of standard instances. Based on a newly optimized virtualization platform, it provides balanced, stable computing, memory, and network resources, making it the optimal choice for a wide range of applications.
Standard S9 instances use the new Intel Sierra Forest processor and the latest Double Data Rate 5 (DDR5) memory, with default network optimization. They support up to 33.7 million PPS for private network packet receiving and sending capabilities.

Features

Built on next-generation Tencent Cloud self-developed Star Lake dual-socket servers and powered by Intel Sierra Forest processors.
Offer multiple CPU-to-memory ratios, including 1:2 and 1:4, with a turbo frequency of 2.7 GHz.
33.7 million PPS, offering ultra-high packet receiving and sending capabilities to support intensive private network transmission.
Instance network performance scales with specifications. For configurations with a base bandwidth below 25 Gbps, burst bandwidth is supported. Higher specifications offer stronger packet forwarding performance and a higher upper limit for private network bandwidth.
Support enabling or disabling hyper-threading configuration.
Support burst bandwidth.
Note:
Burst bandwidth: The size of private network bandwidth is related to instance specifications, each having its own maximum private network bandwidth limit. In scenarios where network traffic surges within a short duration, Tencent Cloud servers offer burst bandwidth processing capabilities. For cloud servers that meet burst conditions, exceeding of the private network bandwidth limit for a short period is allowed, catering to customer business needs.
Support jumbo frames.
Note:
Jumbo frames: Tencent Cloud supports sending Ethernet frames with an 8500-byte payload. Using Jumbo frames can fully maximize network performance, making it suitable for storage scenarios and other high traffic situations, thereby enhancing transmission efficiency.

Application Scenarios

Standard S9 instances are suitable for the following scenarios:
Enterprise applications of various types and scales.
Small and medium-sized database systems, caches, search clusters.
Computing clusters, and memory-dependent data processing.
Network-intensive scenarios with high packet processing requirements, such as video bullet comments, live streaming, and gaming.

Requirements

S9 instances are available in both yearly/monthly subscription and pay-as-you-go billing modes.
S9 instances can only be launched within a VPC.
It is recommended to pair with the TencentOS Server operating system for optimal application performance of the instance.
S9 instances support configurable purchases. See the instance specifications below. Make sure the selected instance size meets the minimum CPU and memory requirements of your operating system and applications. In many use cases, operating systems with graphics-intensive user interfaces (such as Windows), which consume significant CPU and memory resources, may require larger instance sizes. As your workload grows and demands more CPU and memory over time, you can scale up to higher configurations or choose a different instance type.
Network performance depends on the support of the instance's operating system kernel version and running environment. When PPS exceeds 10 million and bandwidth exceeds 50 Gbps, the kernel network stack may introduce significant performance overhead. In such cases, the bandwidth results from netperf testing may not meet expectations. You can use DPDK to bypass kernel stack differences on CVMs and obtain the instance's actual network performance. For testing instructions, see High-throughput Network Performance Testing.
Specification
vCPU
Memory (GB)
Throughput (pps) (received and sent packets)
Number of Connections
Number of Queues
Private Network Standard Bandwidth / Burst Bandwidth (Gbps) (Outbound + Inbound)
Storage Standard Bandwidth (Gbps) (Read + Write)
Storage Standard IOPS (Read + Write)
Remarks
S9.MEDIUM2
2
2
250,000
250,000
2
1.5/10
1.5
10,000
-
S9.MEDIUM4
2
4
250,000
250,000
2
1.5/10
1.5
10,000
-
S9.MEDIUM8
2
8
250,000
250,000
2
1.5/10
1.5
10,000
-
S9.LARGE8
4
8
400,000
250,000
4
2/10
2
15,000
-
S9.LARGE16
4
16
400,000
250,000
4
2/10
2
15,000
-
S9.2XLARGE16
8
16
900,000
300,000
8
4/10
3
20,000
-
S9.2XLARGE32
8
32
900,000
300,000
8
4/10
3
20,000
-
S9.4XLARGE32
16
32
1,800,000
700,000
16
8/10
5
30,000
-
S9.4XLARGE64
16
64
1,800,000
700,000
16
8/10
5
30,000
-
S9.8XLARGE64
32
64
3,700,000
1,300,000
32
17/25
8
50,000
-
S9.8XLARGE128
32
128
3,700,000
1,300,000
32
17/25
8
50,000
-
S9.16XLARGE128
64
128
7,500,000
2,700,000
48
33
12
80,000
-
S9.16XLARGE256
64
256
7.5 million
2,700,000
48
33
12
80,000
-
S9.18XLARGE288
72
288
8,400,000
3,000,000
48
38
15
90,000
-
S9.36XLARGE576
144
576
16,800,000
6,000,000
48
75
24
150,000
-
S9.72XLARGE1152
288
1152
33,700,000
12,000,000
48
150
48
300,000
-
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