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Help Center/ Elastic Cloud Server/ Service Overview/ ECS Types and Specifications/ x86 ECS Specifications/ General Computing ECSs

General Computing ECSs

Updated on 2025-02-14 GMT+08:00

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Overview

General computing ECSs provide a balance of compute, memory, and networking resources and a baseline level of vCPU performance with the ability to burst above the baseline. These ECSs are suitable for general workloads, such as web servers, enterprise R&D, and small-scale databases.

Hyper-threading is enabled for this type of ECSs by default. Each vCPU is a thread of a CPU core.

Available now: X1, S7, S7n, S6, Sn3, S3, and S2

**Table 1** General computing ECS features
Series	Compute	Disk Type	Network
X1	vCPU to memory ratio: user-defined Number of vCPUs: 1 to 16 3rd Generation Intel® Xeon® Scalable Processor Basic/Turbo frequency: 2.8 GHz/3.5 GHz	High I/O General Purpose SSD Ultra-high I/O Extreme SSD General Purpose SSD V2	An ECS with higher specifications has better network performance. Maximum packets per second (PPS): 1,000,000 Maximum intranet bandwidth: 12 Gbit/s Maximum number of network connections: 1 million
S7	vCPU to memory ratio: 1:1, 1:2, or 1:4 Number of vCPUs: 1 to 8 3rd Generation Intel® Xeon® Scalable Processor Basic/Turbo frequency: 2.8 GHz/3.5 GHz	High I/O General Purpose SSD Ultra-high I/O Extreme SSD General Purpose SSD V2	An ECS with higher specifications has better network performance. Maximum PPS: 500,000 Maximum intranet bandwidth: 3 Gbit/s Maximum number of network connections: 300,000
S7n	vCPU to memory ratio: 1:1, 1:2, or 1:4 Number of vCPUs: 1 to 8 3rd Generation Intel® Xeon® Scalable Processor Basic/Turbo frequency: 2.6 GHz/3.4 GHz	High I/O General Purpose SSD Ultra-high I/O Extreme SSD General Purpose SSD V2	An ECS with higher specifications has better network performance. Maximum PPS: 500,000 Maximum intranet bandwidth: 3 Gbit/s Maximum number of network connections: 300,000
S6	vCPU to memory ratio: 1:1, 1:2, or 1:4 Number of vCPUs: 1 to 8 2nd Generation Intel® Xeon® Scalable Processor Basic/Turbo frequency: 2.6 GHz/3.5 GHz	High I/O General Purpose SSD Ultra-high I/O Extreme SSD General Purpose SSD V2	An ECS with higher specifications has better network performance. Maximum PPS: 500,000 Maximum intranet bandwidth: 3 Gbit/s Maximum number of network connections: 300,000
Sn3	vCPU to memory ratio: 1:1, 1:2, or 1:4 Number of vCPUs: 1 to 16 Intel® Xeon® Scalable Processor Basic/Turbo frequency: 2.2 GHz/3.0 GHz	High I/O General Purpose SSD Ultra-high I/O Extreme SSD General Purpose SSD V2	An ECS with higher specifications has better network performance. Maximum PPS: 1,000,000 Maximum intranet bandwidth: 6 Gbit/s
S3	vCPU to memory ratio: 1:1, 1:2, or 1:4 Number of vCPUs: 1 to 16 Intel® Xeon® Scalable Processor Basic/Turbo frequency: 2.2 GHz/3.0 GHz	High I/O General Purpose SSD Ultra-high I/O Extreme SSD General Purpose SSD V2	An ECS with higher specifications has better network performance. Maximum PPS: 300,000 Maximum intranet bandwidth: 4 Gbit/s
S2	vCPU to memory ratio: 1:1, 1:2, or 1:4 Number of vCPUs: 1 to 16 Intel® Xeon® Processor E5 v4 family Basic/Turbo frequency: 2.4 GHz/3.3 GHz	High I/O General Purpose SSD Ultra-high I/O Extreme SSD	An ECS with higher specifications has better network performance. Maximum PPS: 300,000 Maximum intranet bandwidth: 4 Gbit/s

General Computing X1

Overview

Flexus X Instance (FlexusX) is a next-generation flexible cloud server service designed for SMEs and developers. It provides application-defined cloud servers with intelligent awareness of service workloads. It is a good choice for medium and light workloads, such as e-commerce livestreaming, enterprise website setup, development and testing environments, game servers, and audio and video services. For details, see What Is Flexus X Instance?

General computing X1 is the flavor name of the FlexusX instances in ECS.

Scenarios

Websites and web applications that have high requirements on PPS throughput
Lightweight databases and cache servers
Light- and medium-load enterprise applications

Specifications

FlexusX supports a wide range of custom specifications for you to choose from. The following table lists the specifications supported by X1 ECSs.

**Table 2** X1 ECS specifications
vCPU	Max./Assured Bandwidth (Gbit/s)	Max. PPS (10,000)	Network Connections (10,000)	Max. NIC Queues	Max. NICs	Max. Supplementary NICs	Virtualization
2	2/0.2	30	50	2	2	8	KVM
4	3/0.4	50	50	2	2	16	KVM
6	4/0.6	60	50	2	2	24	KVM
8	6/0.8	80	100	2	2	32	KVM
12	8/1.2	90	100	4	3	48	KVM
16	12/1.6	100	100	4	3	64	KVM

General Computing S7

Overview

General computing S7 ECSs use the 3rd generation Intel® Xeon® Scalable processors and 25GE high-speed intelligent NICs to provide high network bandwidth and PPS.

Scenarios

Websites and web applications that have high requirements on PPS throughput
Lightweight databases and cache servers
Light- and medium-load enterprise applications

Specifications

**Table 3** S7 ECS specifications
Flavor	vCPUs	Memory (GiB)	Max./Assured Bandwidth (Gbit/s)	Max. PPS (10,000)	Network Connections (10,000)	Max. NIC Queues	Max. NICs	Max. Supplementary NICs	Virtualization
s7.small.1	1	1	0.8/0.1	10	30	1	2	4	KVM
s7.medium.2	1	2	0.8/0.1	10	30	1	2	4	KVM
s7.large.2	2	4	1.5/0.2	15	30	1	2	8	KVM
s7.xlarge.2	4	8	2/0.35	25	30	1	2	16	KVM
s7.2xlarge.2	8	16	3/0.75	50	30	2	2	32	KVM
s7.medium.4	1	4	0.8/0.1	10	30	1	2	4	KVM
s7.large.4	2	8	1.5/0.2	15	30	1	2	8	KVM
s7.xlarge.4	4	16	2/0.35	25	30	1	2	16	KVM
s7.2xlarge.4	8	32	3/0.75	50	30	2	2	32	KVM

General Computing S7n

Overview

General-purpose S7n ECSs use the 3rd generation Intel® Xeon® Scalable processors and 25GE high-speed intelligent NICs to provide high network bandwidth and PPS.

Scenarios

Websites and web applications that have high requirements on PPS throughput
Lightweight databases and cache servers
Light- and medium-load enterprise applications

Specifications

**Table 4** S7n ECS specifications
Flavor	vCPUs	Memory (GiB)	Max./Assured Bandwidth (Gbit/s)	Max. PPS (10,000)	Network Connections (10,000)	Max. NIC Queues	Max. NICs	Max. Supplementary NICs	Virtualization
s7n.small.1	1	1	0.8/0.1	10	30	1	2	4	KVM
s7n.medium.2	1	2	0.8/0.1	10	30	1	2	4	KVM
s7n.large.2	2	4	1.5/0.2	15	30	1	2	8	KVM
s7n.xlarge.2	4	8	2/0.35	25	30	1	2	16	KVM
s7n.2xlarge.2	8	16	3/0.75	50	30	2	2	32	KVM
s7n.medium.4	1	4	0.8/0.1	10	30	1	2	4	KVM
s7n.large.4	2	8	1.5/0.2	15	30	1	2	8	KVM
s7n.xlarge.4	4	16	2/0.35	25	30	1	2	16	KVM
s7n.2xlarge.4	8	32	3/0.75	50	30	2	2	32	KVM

General Computing S6

Overview

General computing S6 ECSs use the 2nd generation Intel® Xeon® Scalable processors and self-developed 25GE high-speed intelligent NICs to provide high network bandwidth and packets per second (PPS). For details, see Table 1.

Notes

S6 ECS burstable performance is neither restricted by CPU credits nor billed for additional credits.

Scenarios

Websites and web applications that have high requirements on PPS throughput
Lightweight databases and cache servers
Light- and medium-load enterprise applications

Specifications

**Table 5** S6 ECS specifications
Flavor	vCPUs	Memory (GiB)	Max./Assured Bandwidth (Gbit/s)	Max. PPS (10,000)	Network Connections (10,000)	Max. NIC Queues	Max. NICs	Virtualization
s6.small.1	1	1	0.8/0.1	10	30	1	2	KVM
s6.medium.2	1	2	0.8/0.1	10	30	1	2	KVM
s6.large.2	2	4	1.5/0.2	15	30	1	2	KVM
s6.xlarge.2	4	8	2/0.35	25	30	1	2	KVM
s6.2xlarge.2	8	16	3/0.75	50	30	2	2	KVM
s6.medium.4	1	4	0.8/0.1	10	30	1	2	KVM
s6.large.4	2	8	1.5/0.2	15	30	1	2	KVM
s6.xlarge.4	4	16	2/0.35	25	30	1	2	KVM
s6.2xlarge.4	8	32	3/0.75	50	30	2	2	KVM

General Computing Sn3

Overview

Working in 25 GiB/s networks, Sn3 ECSs offer higher bandwidths, lower latency, more stable computing performance, and high PPS that are cost-effective.

Scenarios

Websites and web applications that have high requirements on PPS throughput
Lightweight databases and cache servers
Light- and medium-load enterprise applications

Specifications

**Table 6** Sn3 ECS specifications
Flavor	vCPUs	Memory (GiB)	Max./Assured Bandwidth (Gbit/s)	Max. PPS (10,000)	Max. NIC Queues	Max. NICs	Virtualization
sn3.small.1	1	1	0.8/0.2	10	1	1	KVM
sn3.medium.2	1	2	0.8/0.2	10	1	1	KVM
sn3.large.2	2	4	1.5/0.35	15	1	2	KVM
sn3.xlarge.2	4	8	2/0.7	25	1	2	KVM
sn3.2xlarge.2	8	16	3/1.3	50	2	2	KVM
sn3.4xlarge.2	16	32	6/2.5	100	4	2	KVM
sn3.medium.4	1	4	0.8/0.2	10	1	1	KVM
sn3.large.4	2	8	1.5/0.35	15	1	2	KVM
sn3.xlarge.4	4	16	2/0.7	25	1	2	KVM
sn3.2xlarge.4	8	32	3/1.3	50	2	2	KVM
sn3.4xlarge.4	16	64	6/2.5	100	4	2	KVM

General Computing S3

Overview

S3 ECSs use Intel® Xeon® Scalable processors, which significantly improve the comprehensive performance. They provide a balance of compute, memory, and networking resources and a baseline level of vCPU performance with the ability to burst above the baseline.

Scenarios

Websites and web applications
Lightweight databases and cache servers
Light- and medium-load enterprise applications

Specifications

**Table 7** S3 ECS specifications
Flavor	vCPUs	Memory (GiB)	Max./Assured Bandwidth (Gbit/s)	Max. PPS (10,000)	Max. NIC Queues	Virtualization
s3.small.1	1	1	0.5/0.1	5	1	KVM
s3.medium.2	1	2	0.5/0.1	5	1	KVM
s3.large.2	2	4	0.8/0.2	10	1	KVM
s3.xlarge.2	4	8	1.5/0.4	15	1	KVM
s3.2xlarge.2	8	16	3/0.8	20	2	KVM
s3.4xlarge.2	16	32	4/1.5	30	4	KVM
s3.medium.4	1	4	0.5/0.1	5	1	KVM
s3.large.4	2	8	0.8/0.2	10	1	KVM
s3.xlarge.4	4	16	1.5/0.4	15	1	KVM
s3.2xlarge.4	8	32	3/0.8	20	2	KVM
s3.4xlarge.4	16	64	4/1.5	30	4	KVM

General Computing S2

Overview

S2 ECSs use the latest-generation KVM virtualization platform and non-uniform memory access (NUMA) architecture to provide higher computing performance.

Scenarios

Websites and web applications
Lightweight databases and cache servers
Light- and medium-load enterprise applications

Specifications

**Table 8** S2 ECS specifications
Flavor	vCPUs	Memory (GiB)	Max./Assured Bandwidth (Gbit/s)	Max. PPS (10,000)	Max. NIC Queues	Virtualization
s2.small.1	1	1	0.5/0.1	5	1	KVM
s2.medium.2	1	2	0.5/0.1	5	1	KVM
s2.large.2	2	4	0.8/0.2	10	1	KVM
s2.xlarge.2	4	8	1.5/0.4	15	1	KVM
s2.2xlarge.2	8	16	3/0.8	20	2	KVM
s2.4xlarge.2	16	32	4/1.5	30	4	KVM
s2.8xlarge.2	32	64	6/3	50	8	KVM
s2.medium.4	1	4	0.5/0.1	5	1	KVM
s2.large.4	2	8	0.8/0.2	10	1	KVM
s2.xlarge.4	4	16	1.5/0.4	15	1	KVM
s2.2xlarge.4	8	32	3/0.8	20	2	KVM
s2.4xlarge.4	16	64	4/1.5	30	4	KVM
s2.8xlarge.4	32	128	6/3	50	8	KVM