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Compute-optimized instance types (c series)

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The compute-optimized instance family (c series) provides a 1:2 CPU-to-memory ratio, ideal for compute-intensive workloads such as databases, web servers, high-performance scientific and engineering applications, game servers, data analytics, batch computing, video encoding, and machine learning.

Note

X86

ARM

Not recommended

Intel

AMD

Yitian and others

Yitian 710 processor
Ampere® Altra®

Compute-optimized instance family c9ae

  • Introduction: Built on the new-generation Alibaba Cloud CIPU and powered by the latest AMD EPYC™ Turin processors, these instances use physical cores to deliver stable computing performance, a powerful I/O engine, and chip-level security hardening.

  • Use cases: Ideal for workloads such as big data analytics (e.g., Spark, Flink, and Elasticsearch), search and recommendation engines, advertising systems (ps-worker), core transaction systems, audio and video transcoding, AI training and inference, and general-purpose enterprise applications (e.g., Java).

  • Compute:

    • Processor-to-memory ratio: 1:2.

    • Processor: AMD EPYC™ Turin processors with a turbo frequency of up to 3.7 GHz.

    • For information about OS compatibility, see AMD instance type and OS compatibility.

  • Storage:

  • Network:

  • Security:

The following table lists the available c9ae instance types and their specifications.

Instance type

vCPUs

Memory (GiB)

Network bandwidth (Gbit/s)

Network PPS

Connections

NIC queues

ENIs

Private IPv4 addresses

IPv6 addresses

Disk IOPS

Disk bandwidth (Gbit/s)

ecs.c9ae.large

2

4

2.5 / 25

Up to 1,500,000

Up to 500,000

2

3

6

6

Up to 200,000

2.5 / 20

ecs.c9ae.xlarge

4

8

4 / 25

Up to 1,600,000

Up to 500,000

4

4

15

15

Up to 200,000

3 / 20

ecs.c9ae.2xlarge

8

16

6 / 25

Up to 2,500,000

Up to 500,000

8

4

15

15

Up to 200,000

4 / 20

ecs.c9ae.4xlarge

16

32

10 / 25

Up to 3,200,000

Up to 500,000

16

8

30

30

Up to 200,000

5.5 / 20

ecs.c9ae.8xlarge

32

64

16 / 25

Up to 5,000,000

Up to 1,000,000

32

8

30

30

Up to 200,000

8 / 20

ecs.c9ae.12xlarge

48

96

25 / None

7,500,000

1,500,000

48

8

30

30

150,000

13 / None

ecs.c9ae.16xlarge

64

128

32 / None

10,000,000

2,000,000

64

8

30

30

200,000

16 / None

ecs.c9ae.24xlarge

96

192

50 / None

15,000,000

3,000,000

64

15

30

30

300,000

25 / None

ecs.c9ae.32xlarge

128

256

64 / None

20,000,000

4,000,000

64

15

30

30

400,000

32 / None

ecs.c9ae.48xlarge

192

384

100 / None

30,000,000

6,000,000

64

15

50

50

600,000

50 / None

Compute-optimized instance family c9a

  • Introduction: Built on the new-generation Alibaba Cloud CIPU architecture and powered by the latest AMD EPYC™ Turin processors to provide stable computing performance, a powerful I/O engine, and chip-level security hardening.

  • Use cases: Ideal for workloads such as large and medium-sized database systems, game servers, financial quantitative analysis, blockchain, web and application servers, and other general-purpose enterprise applications.

  • Compute:

    • The vCPU-to-memory ratio is 1:2.

    • Processor: AMD EPYC™ Turin processor with a turbo frequency of up to 4.1 GHz, ensuring stable computing performance.

    • For information about OS compatibility, see AMD instance types and OS compatibility.

  • Storage:

  • Network:

  • Security: Supports the Trusted Computing (vTPM) feature.

The following table lists the specifications for the c9a instance family.

Instance type

vCPUs

Memory (GiB)

Network bandwidth (Gbit/s)

Packet rate (PPS)

Connections

NIC queues

ENIs

Private IPv4 addresses

IPv6 addresses

Disk IOPS

Disk bandwidth (Gbit/s)

ecs.c9a.large

2

4

2.5/Up to 15

Up to 1,200,000

Up to 500,000

2

3

6

6

Up to 110,000

2/Up to 15

ecs.c9a.xlarge

4

8

4/Up to 15

Up to 1,400,000

Up to 500,000

4

4

15

15

Up to 110,000

3/Up to 15

ecs.c9a.2xlarge

8

16

6/Up to 15

Up to 2,000,000

Up to 500,000

8

4

15

15

Up to 110,000

4/Up to 15

ecs.c9a.4xlarge

16

32

12/Up to 25

Up to 3,000,000

Up to 500,000

16

8

30

30

Up to 110,000

5/Up to 15

ecs.c9a.8xlarge

32

64

16/Up to 32

Up to 4,000,000

Up to 800,000

32

8

30

30

Up to 110,000

8/Up to 15

ecs.c9a.16xlarge

64

128

32/None

7,500,000

1,500,000

64

8

30

30

120,000

16/None

Compute-optimized instance family c9i

  • Introduction: Built on Alibaba Cloud's next-generation CIPU architecture and powered by Intel® Xeon® 6 processors with P-cores, these instances deliver stable computing performance, a powerful I/O engine, and chip-level security hardening.

  • Use cases: Machine learning inference applications, data analytics, batch computing, video encoding, frontend game servers, high-performance scientific and engineering applications, and web frontend servers.

  • Compute:

    • The vCPU-to-memory ratio is 1:2.

    • Processor: Intel® Xeon® Granite Rapids processors with a 3.2 GHz base frequency, an all-core turbo frequency of 3.6 GHz, and a maximum single-core turbo frequency of 3.9 GHz.

      Note

      The system may display different frequencies for this instance. The 3.9 GHz maximum single-core turbo frequency is a burst capability that depends on the overall CPU load of the physical server and is not covered by the Service Level Agreement (SLA).

    • For operating system compatibility, see Intel instance types and operating system compatibility.

  • Storage:

    • I/O-optimized instance.

    • These instances support the NVMe protocol. For more information, see Overview of the NVMe protocol.

    • Supported cloud disk types: ESSDs and ESSD AutoPL disks. For more information about cloud disks, see Block storage overview.

    • For small instance types, disk IOPS and disk bandwidth are burstable. The storage I/O performance of an instance corresponds to its instance type. A larger instance type provides higher storage I/O performance. For more information, see Storage I/O performance.

  • Network:

    • These instances support IPv4 and IPv6. For information about IPv6 communication, see IPv6 communication.

    • These instances support eRDMA. For information about how to use eRDMA, see Enable eRDMA on enterprise-level instances.

    • These instances support jumbo frames. For more information, see Jumbo frames.

    • The network performance of an instance corresponds to its instance type. A larger instance type provides higher network performance.

  • Security: These instances support the vTPM feature. For more information, see Overview of trusted computing.

c9i includes the following instance types and metric data:

Instance type

vCPUs

Memory (GiB)

Network bandwidth (baseline/burst) (Gbit/s)

Network PPS

Connections

NIC queues

ENIs

Private IPv4s per ENI

IPv6 addresses per ENI

Cloud disk IOPS (baseline/burst)

Cloud disk bandwidth (baseline/burst) (Gbit/s)

ecs.c9i.large

2

4

2.5/15

1,000,000

500,000

2

3

6

6

25,000/200,000

2/10

ecs.c9i.xlarge

4

8

4/15

1,200,000

500,000

4

4

15

15

50,000/200,000

2.5/10

ecs.c9i.2xlarge

8

16

6/15

1,600,000

500,000

8

4

15

15

60,000/200,000

4/10

ecs.c9i.3xlarge

12

24

10/15

2,400,000

500,000

12

8

15

15

80,000/200,000

5/10

ecs.c9i.4xlarge

16

32

12/25

3,000,000

500,000

16

8

30

30

100,000/200,000

6/10

ecs.c9i.6xlarge

24

48

15/25

4,500,000

600,000

24

8

30

30

120,000/200,000

7.5/10

ecs.c9i.8xlarge

32

64

20/32

6,000,000

800,000

32

8

30

30

200,000/300,000

10/12

ecs.c9i.12xlarge

48

96

25/32

9,000,000

1,600,000

48

8

30

30

240,000/320,000

12/15

ecs.c9i.16xlarge

64

128

28/36

12,000,000

2,000,000

64

8

30

30

300,000/400,000

16/24

ecs.c9i.24xlarge

96

192

32/48

18,000,000

3,000,000

64

15

30

30

350,000/600,000

20/28

ecs.c9i.32xlarge

128

256

36/50

20,000,000

4,000,000

64

15

30

30

400,000/650,000

24/28

ecs.c9i.48xlarge

192

384

64/None

24,000,000

6,000,000

64

15

50

50

500,000/800,000

32/None

Compute-optimized instance family c8a

  • Introduction: Built on Alibaba Cloud's next-generation CIPU architecture, these instances deliver stable computing power, a powerful I/O engine, and chip-level security hardening.

  • Use cases: Big data applications, web applications, AI training and inference, and audio and video transcoding.

  • Compute:

    • The CPU-to-memory ratio is 1:2.

    • Processor: AMD EPYC™ Genoa processors with a 2.7 GHz base frequency and a turbo frequency of up to 3.7 GHz deliver stable computing power.

    • Supports hyper-threading. Hyper-threading is enabled by default. To change this setting, see Change CPU options.

    • For information about operating system compatibility, see AMD instance type and OS compatibility.

  • Storage:

  • Network:

    • Supports IPv4 and IPv6. For IPv6, see IPv6 communication.

    • These instances support eRDMA. For information about how to use eRDMA, see Enable eRDMA on enterprise-level instances.

    • These instances support jumbo frames. For more information, see Jumbo frames.

    • Delivers an ultra-high packet forwarding rate (PPS).

    • Smaller instance types support burstable network bandwidth.

    • Network performance scales with the instance type.

  • Security: These instances support the vTPM feature. For more information, see Overview of trusted computing.

  • Performance acceleration:

    After you select an application for Performance acceleration, the application is automatically deployed on the purchased instance. KeenTune then uses expert knowledge to perform full-stack performance tuning based on the business characteristics of the application. For more information, see Application acceleration.

c8a includes the following instance types and metrics:

Instance type

vCPUs

Memory (GiB)

Network bandwidth (Base/Burst) (Gbit/s)

Packet forwarding rate (PPS)

Connections

Multi-queue

ENIs

Private IPv4s/ENI

IPv6s/ENI

Cloud disk IOPS (Base/Burst)

Cloud disk bandwidth (Base/Burst) (Gbit/s)

ecs.c8a.large

2

4

1.5/Up to 12.5

900,000

Up to 250,000

2

3

6

6

20,000/Up to 110,000

1.5/Up to 10

ecs.c8a.xlarge

4

8

2.5/Up to 12.5

1,000,000

Up to 250,000

4

4

15

15

30,000/Up to 110,000

2/Up to 10

ecs.c8a.2xlarge

8

16

4/Up to 12.5

1,600,000

Up to 250,000

8

4

15

15

45,000/Up to 110,000

2.5/Up to 10

ecs.c8a.4xlarge

16

32

7/Up to 12.5

2,000,000

300,000

16

8

30

30

60,000/Up to 110,000

3.5/Up to 10

ecs.c8a.8xlarge

32

64

10/Up to 25

3,000,000

600,000

32

8

30

30

80,000/Up to 110,000

5/Up to 10

ecs.c8a.12xlarge

48

96

16/25

4,500,000

750,000

48

8

30

30

120,000/None

8/Up to 10

ecs.c8a.16xlarge

64

128

20/25

6,000,000

1,000,000

64

8

30

30

160,000/None

10/None

ecs.c8a.24xlarge

96

192

32/None

9,000,000

1,500,000

64

15

30

30

240,000/None

16/None

ecs.c8a.32xlarge

128

256

40/None

12,000,000

2,000,000

64

15

30

30

320,000/None

20/None

ecs.c8a.48xlarge

192

384

64/None

18,000,000

3,000,000

64

15

50

50

500,000/None

32/None

Note

For ecs.c8a.large and ecs.c8a.xlarge instances, you must enable jumbo frames to achieve the burst network bandwidth of 12.5 Gbit/s. For more information, see jumbo frames.

Compute-balanced enhanced instance family c8ae

  • Introduction: Built on the Alibaba Cloud-developed CIPU architecture, these instances provide stable computing performance, a powerful I/O engine, and chip-level security hardening.

  • Use cases:

    • AI workloads, such as deep learning, training, and AI inference.

    • High-performance computing (HPC) workloads.

    • Large and medium-sized database systems, caches, and search clusters.

    • Massively multiplayer online (MMO) game servers.

    • Other general-purpose enterprise applications with high performance requirements.

  • Compute:

    • The CPU-to-memory ratio is 1:2.

    • The AMD EPYC™ Genoa processor provides stable computing performance with a base frequency of 3.4 GHz and a single-core turbo frequency of up to 3.75 GHz.

    • Hyper-threading is enabled by default. To change this setting, see Change CPU options.

    • For operating system compatibility, see AMD instance type and OS compatibility.

  • Storage:

  • Network:

    • Supports IPv4 and IPv6. For more information about IPv6 communication, see IPv6 communication.

    • These instances support eRDMA. For information about how to use eRDMA, see Enable eRDMA on enterprise-level instances.

    • These instances support jumbo frames. For more information, see Jumbo frames.

    • Delivers an ultra-high packet forwarding rate (PPS).

    • Smaller instance types support burstable network bandwidth.

    • Network performance scales with the instance type.

  • Security: These instances support the vTPM feature. For more information, see Overview of trusted computing.

c8ae includes the instance types and metrics listed in the following table:

Instance type

vCPUs

Memory (GiB)

Network bandwidth (Gbit/s)

PPS

vTPM

Connections

NIC queues

ENIs

Private IPv4/ENI

IPv6/ENI

Cloud disk IOPS

Disk bandwidth (Gbit/s)

ecs.c8ae.large

2

4

3/Up to 15

1,000,000

Yes

Up to 300,000

2

3

6

6

30,000/Up to 200,000

2/Up to 10

ecs.c8ae.xlarge

4

8

4/Up to 15

1,200,000

Yes

Up to 300,000

4

4

15

15

50,000/Up to 200,000

2.5/Up to 10

ecs.c8ae.2xlarge

8

16

6/Up to 15

1,600,000

Yes

Up to 300,000

8

4

15

15

60,000/Up to 200,000

3/Up to 10

ecs.c8ae.4xlarge

16

32

12/Up to 25

3,000,000

Yes

500,000

16

8

30

30

100,000/Up to 200,000

6/Up to 10

ecs.c8ae.8xlarge

32

64

20/Up to 25

6,000,000

Yes

1,000,000

32

8

30

30

200,000/None

10/None

ecs.c8ae.16xlarge

64

128

32/None

9,000,000

Yes

1,500,000

64

8

30

30

250,000/None

16/None

ecs.c8ae.32xlarge

128

256

64/None

18,000,000

Yes

3,000,000

64

15

30

30

500,000/None

32/None

Note

To achieve the 15 Gbit/s burst network bandwidth on ecs.c8ae.large and ecs.c8ae.xlarge instances, you must enable jumbo frames. For more information, see Jumbo Frames.

Compute-optimized instance family c8i

  • Introduction: Built on the next-generation Alibaba Cloud CIPU architecture, c8i instances provide stable computing performance, a powerful I/O engine, and chip-level security hardening.

  • Use cases: Ideal for machine learning inference, data analytics, batch computing, video encoding, game frontend servers, high-performance scientific and engineering applications, and web frontend servers.

  • Compute:

    • The vCPU-to-memory ratio is 1:2.

    • Processor: Intel®Xeon®Emerald Rapids or Intel®Xeon®Sapphire Rapids processors with a base frequency of at least 2.7 GHz and an all-core turbo frequency of 3.2 GHz.

      Note

      When you purchase an instance of this family, the system randomly assigns one of the preceding processors. You cannot manually select a processor.

    • Supports Hyper-Threading, enabled by default. For more information, see Change CPU options.

    • For information about operating system compatibility, see Intel instance types and operating system compatibility.

  • Storage:

  • Network:

    • Supports IPv4 and IPv6. For more information about IPv6, see IPv6 communication.

    • These instances support eRDMA. For information about how to use eRDMA, see Enable eRDMA on enterprise-level instances.

    • These instances support jumbo frames. For more information, see Jumbo frames.

    • Network performance scales with the instance type.

    • Smaller instance types support burstable network bandwidth.

  • Security:

    • These instances support the vTPM feature. For more information, see Overview of trusted computing.

    • The vTPM feature uses TPM/TCM chips to create a trusted boot chain from the server to the instance for enhanced security.

    • Instances with 4 or more vCPUs support the Alibaba Cloud virtualized enclave feature to provide a confidential computing environment. For more information, see Build a confidential computing environment by using an enclave.

    • Uses Intel® Total Memory Encryption (TME) to encrypt runtime memory.

  • Performance acceleration:

    After you select an application for Performance acceleration, the application is automatically deployed on the purchased instance. KeenTune then uses expert knowledge to perform full-stack performance tuning based on the business characteristics of the application. For more information, see Application acceleration.

The following table describes the instance types and specifications of the c8i family.

Instance type

vCPUs

Memory (GiB)

Network baseline/burst bandwidth (Gbit/s)

Packet forwarding rate (PPS)

Connections

Multi-queue

ENIs

Private IPv4 addresses per ENI

IPv6 addresses per ENI

Cloud disk baseline/burst IOPS

Cloud disk baseline/burst bandwidth (Gbit/s)

ecs.c8i.large

2

4

2.5/Up to 15

1,000,000

Up to 300,000

2

3

6

6

25,000/Up to 200,000

2/Up to 10

ecs.c8i.xlarge

4

8

4/Up to 15

1,200,000

Up to 300,000

4

4

15

15

50,000/Up to 200,000

2.5/Up to 10

ecs.c8i.2xlarge

8

16

6/Up to 15

1,600,000

Up to 300,000

8

4

15

15

60,000/Up to 200,000

4/Up to 10

ecs.c8i.3xlarge

12

24

10/Up to 15

2,400,000

Up to 300,000

12

8

15

15

80,000/Up to 200,000

5/Up to 10

ecs.c8i.4xlarge

16

32

12/Up to 25

3,000,000

350,000

16

8

30

30

100,000/Up to 200,000

6/Up to 10

ecs.c8i.6xlarge

24

48

15/Up to 25

4,500,000

500,000

24

8

30

30

120,000/Up to 200,000

7.5/Up to 10

ecs.c8i.8xlarge

32

64

20/Up to 25

6,000,000

800,000

32

8

30

30

200,000/None

10/None

ecs.c8i.12xlarge

48

96

25/None

9,000,000

1,000,000

48

8

30

30

300,000/None

12/None

ecs.c8i.16xlarge

64

128

32/None

12,000,000

1.6 million

64

8

30

30

360,000/None

20/None

ecs.c8i.24xlarge

96

192

50/None

18 million

2 million

64

15

30

30

500,000/None

24/None

ecs.c8i.48xlarge

192

512

100/Unlimited

30 million

4 million

64

15

50

50

1,000,000/None

48/None

Network-enhanced compute-optimized instance family c8ine

  • Introduction: Built on the new-generation Alibaba Cloud CIPU architecture, these instances deliver stable computing performance and a powerful I/O engine.

  • Use cases: Ideal for network-intensive workloads that require high forwarding and connection performance, such as network access layer gateways, traffic and data forwarding, and pre-processing middleware. As part of a cloud-native solution, these instances support large websites, e-commerce, and AI applications.

  • Compute:

    • The vCPU-to-memory ratio is 1:2.

    • Processor: Powered by Intel® Xeon® Emerald Rapids or Intel® Xeon® Sapphire Rapids processors with a base frequency of at least 2.7 GHz and an all-core turbo frequency of 3.2 GHz.

    • Supports Hyper-Threading, which is enabled by default. For more information, see Change CPU options.

  • Storage:

    • These are I/O optimized instances.

    • These instances support the NVMe protocol. For more information, see Overview of the NVMe protocol.

    • Supported cloud disk types: ESSDs, ESSD AutoPL disks, and Regional ESSDs. For more information about cloud disks, see Block storage overview.

    • Smaller instance types offer burstable disk IOPS and disk bandwidth.

  • Network:

    • Supports IPv4 and IPv6. For more information about IPv6 communication, see IPv6 communication.

    • These instances support jumbo frames. For more information, see Jumbo frames.

    • Network performance scales with the instance type.

  • Security: Supports trusted computing (vTPM). For more information, see Trusted computing overview.

The following table lists the instance types and specifications for the c8ine instance family.

Instance type

vCPUs

Memory (GiB)

Network bandwidth (Gbit/s)

Connections

Multi-queue

ENIs

Private IPv4 addresses

IPv6 addresses

ESSD multi-queue

Disk IOPS

Disk bandwidth (Gbit/s)

ecs.c8ine.large

2

4

4/24

600,000

2

3

10

10

1

20,000/80,000

2/8

ecs.c8ine.xlarge

4

8

7/28

1,200,000

4

4

15

15

1

40,000/80,000

2.5/8

ecs.c8ine.2xlarge

8

16

12/35

2,000,000

8

6

15

15

2

50,000/80,000

4/8

ecs.c8ine.4xlarge

16

32

23/44

3,500,000

16

8

30

30

2

80,000/100,000

6/10

ecs.c8ine.8xlarge

32

64

44/N/A

7,000,000

32

8

30

30

4

100,000/N/A

10/N/A

Compute-optimized instance family c8y

  • Introduction: These instances feature Alibaba Cloud's in-house Yitian 710 Arm-based processors and are built on the fourth-generation SHENLONG architecture. They deliver stable, predictable, and exceptionally high performance. They use chip-level fast-path acceleration to achieve order-of-magnitude improvements in storage and network performance and to enhance computing stability.

  • Use cases: Ideal for containers, microservices, websites, application servers, video encoding and decoding, high-performance computing (HPC), and CPU-based machine learning.

  • Compute:

    • The vCPU-to-memory ratio is 1:2.

    • Processor: 2.75 GHz Yitian 710 processors deliver stable computing performance.

  • Storage:

  • Network:

    • Supports IPv4 and IPv6. For more information, see IPv6 communication.

    • Supports Elastic RDMA Interface (ERI). For instructions on how to use ERI, see Enable eRDMA on enterprise-level instances.

    • These instances support jumbo frames. For more information, see Jumbo frames.

    • Achieves an exceptionally high packet forwarding rate (PPS).

    • Smaller instance types support burstable network bandwidth.

    • Network performance scales with the instance type.

  • Security: These instances support the vTPM feature. For more information, see Overview of trusted computing.

  • Performance acceleration:

    After you select an application for Performance acceleration, the application is automatically deployed on the purchased instance. KeenTune then uses expert knowledge to perform full-stack performance tuning based on the business characteristics of the application. For more information, see Application acceleration.

c8y includes the instance types and metrics that are described in the following table:

Instance type

vCPUs

Memory (GiB)

Network bandwidth (baseline/burst, Gbit/s)

Network PPS

Connections

NIC queues

ENIs

Private IPv4s per ENI

IPv6s per ENI

Max data disks

Disk IOPS (baseline/burst)

Disk bandwidth (baseline/burst, Gbit/s)

ecs.c8y.small

1

2

1/10

500,000

Up to 250,000

1

2

3

3

5

10,000/Up to 110,000

1/Up to 10

ecs.c8y.large

2

4

2/10

900,000

Up to 250,000

2

3

6

6

8

20,000/Up to 110,000

1.5/Up to 10

ecs.c8y.xlarge

4

8

3/10

1,000,000

Up to 250,000

4

4

15

15

8

40,000/Up to 110,000

2/Up to 10

ecs.c8y.2xlarge

8

16

5/10

1,600,000

Up to 250,000

8

4

15

15

16

50,000/Up to 110,000

3/Up to 10

ecs.c8y.4xlarge

16

32

10/25

3,000,000

400,000

16

8

30

30

16

80,000/Up to 110,000

5/Up to 10

ecs.c8y.8xlarge

32

64

16/25

5,000,000

750,000

32

8

30

30

16

125,000

10

ecs.c8y.16xlarge

64

128

32/None

10,000,000

1,500,000

64

8

30

30

32

250,000

16

ecs.c8y.32xlarge

128

256

64/None

20,000,000

3,000,000

64

15

30

30

32

500,000

32

Note

To request access to the ecs.c8y.32xlarge instance type, submit a ticket.

Compute-optimized instance family c7a

  • Introduction: Built on the third-generation SHENLONG architecture, c7a instances deliver stable and predictable ultra-high performance. They use chip-level fast path acceleration to achieve order-of-magnitude improvements in storage performance, network performance, and compute stability.

  • Use cases:

    • Video encoding and decoding.

    • High packet forwarding rate (PPS) workloads, such as live video commenting and telecom service forwarding.

    • Web frontend servers.

    • Massively multiplayer online (MMO) game frontends.

    • Development and testing, such as DevOps.

    • Data analytics and batch computing.

    • High-performance scientific and engineering applications.

    • Enterprise-grade applications of all types and sizes.

  • Compute:

    • The vCPU-to-memory ratio is 1:2.

    • Processor: AMD EPYC™ Milan processors with a 2.55 GHz base frequency and a single-core turbo frequency of up to 3.5 GHz deliver stable compute performance.

    • Hyper-Threading is supported and enabled by default. For more information, see Change CPU options.

    • For information about operating system compatibility, see AMD instance type and OS compatibility.

  • Storage:

  • Network:

    • Supports IPv4 and IPv6. For more information, see IPv6 communication.

    • Provides an ultra-high packet forwarding rate (PPS).

    • Smaller instance types support burstable network bandwidth.

    • Network performance increases with instance size.

c7a includes the instance types and metrics listed in the following table:

Instance type

vCPUs

Memory (GiB)

Network bandwidth (baseline/burst) (Gbit/s)

Packet forwarding rate (PPS)

Connections

NIC queues

ENIs

Private IPv4 addresses per ENI

IPv6 addresses per ENI

Cloud disk IOPS (baseline/burst)

Cloud disk bandwidth (baseline/burst) (Gbit/s)

ecs.c7a.large

2

4

1/10

900,000

250,000

2

3

6

6

12,500/110,000

1/6

ecs.c7a.xlarge

4

8

1.5/10

1,000,000

250,000

4

4

15

15

20,000/110,000

1.5/6

ecs.c7a.2xlarge

8

16

2.5/10

1,600,000

250,000

8

4

15

15

30,000/110,000

2/6

ecs.c7a.4xlarge

16

32

5/10

2,000,000

300,000

8

8

30

30

60,000/110,000

3/6

ecs.c7a.8xlarge

32

64

8/10

3,000,000

600,000

16

7

30

30

75,000/110,000

4/6

ecs.c7a-nps1.8xlarge

32

64

8/10

3,000,000

600,000

16

7

30

30

75,000/110,000

4/6

ecs.c7a.16xlarge

64

128

16/N/A

6,000,000

1,000,000

32

7

30

30

150,000/N/A

8/N/A

ecs.c7a-nps1.16xlarge

64

128

16/N/A

3,000,000

1,000,000

32

7

30

30

150,000/N/A

8/N/A

ecs.c7a.32xlarge

128

256

32/N/A

12,000,000

2,000,000

32

15

30

30

300,000/N/A

16/N/A

Note

The kernels of Ubuntu 16 and Debian 9 do not support AMD EPYC™ Milan processors. Do not use Ubuntu 16 or Debian 9 images to create c7a instances. Otherwise, the instances fail to start.

Compute-optimized instance family c7

  • Introduction: Built on the third-generation Shenlong architecture, c7 instances deliver stable and predictable ultra-high performance. They use chip-level fast-path acceleration to deliver dramatic improvements in storage, network performance, and computing stability.

  • Use cases:

    • Scenarios with high packet forwarding rates (PPS), such as real-time video comment streaming and telecom service forwarding.

    • Front-end servers for massively multiplayer online (MMO) games.

    • Web front-end servers.

    • Data analytics, batch computing, and video encoding.

    • High-performance scientific and engineering applications.

    • Workloads that require trusted computing.

    • Enterprise-grade applications of all types and sizes.

    • Blockchain applications.

  • Compute:

    • vCPU-to-memory ratio of 1:2.

    • Processor: Features 3rd Generation Intel® Xeon® Scalable (Ice Lake) processors with a base frequency of 2.7 GHz and an all-core turbo frequency of 3.5 GHz.

    • Hyper-Threading is supported and enabled by default. For more information, see Configure CPU options.

  • Storage:

  • Network:

    • Supports both IPv4 and IPv6. For information about IPv6 communication, see IPv6 communication.

    • These instances support jumbo frames. For more information, see Jumbo frames.

    • Provides an ultra-high packet forwarding rate (PPS).

    • Smaller instance types support burstable network bandwidth.

    • Network performance scales with the instance type.

  • Security:

The following table lists the specifications of the c7 instance types.

Instance type

vCPUs

Memory (GiB)

Network bandwidth (Gbit/s)

PPS

vTPM support

Connections

Multi-queue

ENIs

Private IPv4 addresses/ENI

IPv6 addresses/ENI

Max data disks

Cloud disk IOPS

Cloud disk bandwidth (Gbit/s)

ecs.c7.large

2

4

2/Up to 12.5

1,100,000

Yes

Up to 500,000

2

3

6

6

8

20,000/Up to 160,000

1.5/Up to 10

ecs.c7.xlarge

4

8

3/Up to 12.5

1,100,000

Yes

Up to 500,000

4

4

15

15

8

40,000/Up to 160,000

2/Up to 10

ecs.c7.2xlarge

8

16

5/Up to 15

1,600,000

Yes

Up to 500,000

8

4

15

15

16

50,000/Up to 160,000

3/Up to 10

ecs.c7.3xlarge

12

24

8/Up to 15

2,400,000

Yes

Up to 500,000

8

8

15

15

16

70,000/Up to 160,000

4/Up to 10

ecs.c7.4xlarge

16

32

10/Up to 25

3,000,000

Yes

500,000

8

8

30

30

16

80,000/Up to 160,000

5/Up to 10

ecs.c7.6xlarge

24

48

12/Up to 25

4,500,000

Yes

550,000

12

8

30

30

16

110,000/Up to 160,000

6/Up to 10

ecs.c7.8xlarge

32

64

16/Up to 32

6,000,000

Yes

600,000

16

8

30

30

24

160,000/None

10/None

ecs.c7.16xlarge

64

128

32/None

12,000,000

Yes

1,200,000

32

8

30

30

32

360,000/None

16/None

ecs.c7.32xlarge

128

256

64/None

24,000,000

Yes

2,400,000

32

15

30

30

32

600,000/None

32/None

Compute-optimized instance family c6r

  • Introduction: Built on the third-generation SHENLONG architecture, c6r instances deliver stable and predictable ultra-high performance. They also use chip-level fast-path acceleration, achieving order-of-magnitude improvements in storage performance, network performance, and compute stability.

  • Use cases:

    • Containers and microservices

    • Development and testing (DevOps)

    • Websites and application servers

    • CPU-based machine learning inference

    • High-performance scientific and engineering applications

  • Compute:

    • The vCPU-to-memory ratio is 1:2.

    • Processor: 2.8 GHz Ampere® Altra® processors.

  • Storage:

  • Network:

    • Supports IPv4 and IPv6. For more information about IPv6 communication, see IPv6 communication.

    • These instances deliver an ultra-high packet forwarding rate (PPS).

    • Smaller instance types support burstable network bandwidth.

    • Network performance scales with the instance type.

The following table lists the specifications of instance types in the c6r family.

Instance type

vCPUs

Memory (GiB)

Network bandwidth (baseline/burst, Gbit/s)

Packet rate (PPS)

Connections (thousands)

NIC queues

ENIs

Private IPv4s per ENI

IPv6s per ENI

Disk baseline IOPS

Disk baseline bandwidth (Gbit/s)

ecs.c6r.large

2

4

1/10

900,000

Up to 250

2

3

6

1

12,500

1

ecs.c6r.xlarge

4

8

1/10

1,000,000

Up to 250

4

4

15

1

20,000

1.5

ecs.c6r.2xlarge

8

16

2/10

1,600,000

Up to 250

8

4

15

1

30,000

2

ecs.c6r.4xlarge

16

32

5/10

2,000,000

300

8

8

30

1

60,000

3

ecs.c6r.8xlarge

32

64

8/10

3,000,000

600

16

7

30

1

75,000

4

ecs.c6r.16xlarge

64

128

16/None

6,000,000

900

32

8

30

1

150,000

8

Compute-optimized instance family c6a

  • Introduction: Built on the Shenlong architecture, c6a instances offload many virtualization features to dedicated hardware. This approach reduces virtualization overhead and delivers stable, predictable, and ultra-high performance.

  • Use cases: Video encoding and decoding, high packet rate (PPS) workloads, web frontend servers, frontend servers for massively multiplayer online (MMO) games, and development and testing (DevOps).

  • Compute:

    • The vCPU-to-memory ratio is 1:2.

    • Processor: Powered by 2.6 GHz AMD EPYC™ ROME processors with a 3.3 GHz turbo frequency for stable compute performance.

    • Hyper-Threading is supported and enabled by default. For more information, see Change CPU options.

    • For information about operating system compatibility, see AMD instance type and OS compatibility.

  • Storage:

  • Network:

    • Supports IPv4 and IPv6. For information about IPv6 communication, see IPv6 communication.

    • These instances deliver an ultra-high packet rate (PPS).

    • Network performance scales with the instance type.

The following table describes the instance types and specifications of the c6a family.

Instance type

vCPUs

Memory (GiB)

Bandwidth (base/burst) (Gbit/s)

Packet rate (PPS)

Connections

NIC queues

ENIs

Private IPv4 addresses/ENI

IPv6 addresses/ENI

Base disk IOPS

Base disk bandwidth (Gbit/s)

ecs.c6a.large

2

4

1/10

900,000

Up to 250,000

2

2

6

1

12,500

1

ecs.c6a.xlarge

4

8

1.5/10

1,000,000

Up to 250,000

4

3

15

1

20,000

1.5

ecs.c6a.2xlarge

8

16

2.5/10

1,600,000

Up to 250,000

8

4

15

1

30,000

2

ecs.c6a.4xlarge

16

32

5/10

2,000,000

300,000

8

8

30

1

60,000

3.1

ecs.c6a.8xlarge

32

64

8/10

3,000,000

600,000

16

7

30

1

75,000

4.1

ecs.c6a.16xlarge

64

128

16/None

6,000,000

1,000,000

32

8

30

1

150,000

8.2

ecs.c6a.32xlarge

128

256

32/None

12,000,000

2,000,000

32

15

30

1

300,000

16.4

Compute-balanced instance family c6e

  • Introduction: Built on the third-generation SHENLONG architecture, c6e instances offload many virtualization features to dedicated hardware. This design reduces virtualization overhead and delivers stable, predictable, and ultra-high performance. These instances also use chip-level fast-path acceleration to achieve order-of-magnitude improvements in storage performance, network performance, and compute stability.

  • Use cases:

    • High forwarding rate (PPS) workloads, such as live video commenting and telecom traffic forwarding.

    • Web frontend servers.

    • Massively multiplayer online (MMO) game frontends.

    • Data analytics, batch computing, and video encoding.

    • High-performance scientific and engineering applications.

  • Compute:

    • The vCPU-to-memory ratio is approximately 1:2.

    • Processor: Intel® Xeon® Platinum 8269CY (Cascade Lake) with a 2.5 GHz base frequency and a 3.2 GHz turbo frequency, delivering stable compute performance.

    • Supports Hyper-Threading. This feature is enabled by default. For more information, see Change CPU options.

    Note

    This instance family does not support FreeBSD 13.2 or earlier versions due to compatibility issues. You must use FreeBSD 13.3 or a later version.

  • Storage:

  • Network:

    • Supports both IPv4 and IPv6. For information about IPv6 communication, see IPv6 communication.

    • Offers an ultra-high forwarding rate (PPS).

      Note

      Network performance varies based on the instance families. For higher concurrent connection and network packet forwarding capabilities, we recommend that you use the g7ne instance family.

    • Network performance scales with the instance type. Larger instance types deliver better network performance.

This table lists the specifications for the c6e instance family.

Instance type

vCPUs

Memory (GiB)

Bandwidth (Gbit/s)

Forwarding rate (PPS)

Connections

NIC queues

ENIs

Private IPv4s per ENI

IPv6s per ENI

Disk baseline IOPS

Disk bandwidth (Gbit/s)

ecs.c6e.large

2

4

1.2/10

900,000

Up to 250,000

2

3

6

1

20,000

1

ecs.c6e.xlarge

4

8

2/10

1,000,000

Up to 250,000

4

4

15

1

40,000

1.5

ecs.c6e.2xlarge

8

16

3/10

1,600,000

Up to 250,000

8

4

15

1

50,000

2

ecs.c6e.4xlarge

16

32

6/10

3,000,000

300,000

8

8

30

1

80,000

3

ecs.c6e.8xlarge

32

64

10/N/A

6,000,000

600,000

16

8

30

1

150,000

5

ecs.c6e.13xlarge

52

96

16/N/A

9,000,000

1,000,000

32

7

30

1

240,000

8

ecs.c6e.26xlarge

104

192

32/N/A

24,000,000

1,800,000

32

15

30

1

480,000

16

Compute-optimized instance family c6

  • Introduction: Built on the Shenlong architecture, c6 instances offload many virtualization features to dedicated hardware, reducing virtualization overhead and delivering stable, predictable, and ultra-high performance.

  • Use cases:

    • High packet forwarding rate (PPS) workloads, such as live video commenting and telecom service forwarding.

    • Web frontend servers.

    • Frontend servers for massively multiplayer online (MMO) games.

    • Data analytics, batch computing, and video encoding

    • High-performance scientific and engineering applications.

  • Compute:

    • The vCPU-to-memory ratio is 1:2.

    • Processor: Powered by 2.5 GHz Intel® Xeon® Platinum 8269CY (Cascade Lake) processors with a 3.2 GHz turbo frequency, delivering stable computing performance.

    • Hyper-Threading is supported and enabled by default. For more information, see Change CPU options.

    Note

    This instance family does not support FreeBSD 13.2 or earlier versions due to compatibility issues. Use FreeBSD 13.3 or later.

  • Storage:

    • I/O optimized instance.

    • Supported cloud disk types: ESSDs, ESSD AutoPL disks, standard SSDs, and ultra disks. For more information, see Block storage overview.

      Note

      The maximum performance of disks varies based on the instance families. A single instance of this instance family can deliver up to 200,000 IOPS.

    • Storage I/O performance scales with the instance type. For more information, see Storage I/O performance.

  • Network:

    • Supports IPv4 and IPv6. For more information about IPv6 communication, see IPv6 communication.

    • Ultra-high packet forwarding rate (PPS).

    • Network performance scales with the instance type.

The c6 instance types and their specifications are listed in the following table.

Instance type

vCPUs

Memory (GiB)

Network bandwidth (baseline/burst, Gbit/s)

Packet forwarding rate (PPS)

Connections

Multi-queue

Elastic network interfaces

Private IPv4 addresses per ENI

IPv6 addresses per ENI

Cloud disk baseline IOPS

Cloud disk baseline bandwidth (Gbit/s)

ecs.c6.large

2

4

1/up to 3

300,000

up to 250,000

2

2

6

1

10,000

1

ecs.c6.xlarge

4

8

1.5/up to 5

500,000

up to 250,000

4

3

10

1

20,000

1.5

ecs.c6.2xlarge

8

16

2.5/up to 8

800,000

up to 250,000

8

4

10

1

25,000

2

ecs.c6.3xlarge

12

24

4/up to 10

900,000

up to 250,000

8

6

10

1

30,000

2.5

ecs.c6.4xlarge

16

32

5/up to 10

1,000,000

300,000

8

8

20

1

40,000

3

ecs.c6.6xlarge

24

48

7.5/up to 10

1,500,000

450,000

12

8

20

1

50,000

4

ecs.c6.8xlarge

32

64

10/None

2,000,000

600,000

16

8

20

1

60,000

5

ecs.c6.13xlarge

52

96

12.5/None

3,000,000

900,000

32

7

20

1

100,000

8

ecs.c6.26xlarge

104

192

25/None

6,000,000

1,800,000

32

15

20

1

200,000

16

Compute-optimized instance family c5

  • Use cases:

    • High packet rate (PPS) workloads, such as live video commenting and telecom service forwarding.

    • web frontend servers.

    • Massively multiplayer online (MMO) game frontends.

    • Data analytics, batch computing, and video encoding.

    • High-performance scientific and engineering applications.

  • Compute:

    • The vCPU-to-memory ratio is 1:2.

    • Processor: 2.5 GHz Intel® Xeon® Platinum 8163 (Skylake) or 8269CY (Cascade Lake).

      Note

      Instances of this family may be deployed on different server platforms. If your workload requires a consistent server platform, use c6, c6e, or c7 instances.

  • Storage:

    • I/O-optimized instance.

    • Supported disk types: ESSDs, ESSD AutoPL disks, Standard SSDs, and Ultra Disks. For more information, see block storage.

      Note

      The maximum performance of disks varies based on the instance families. A single instance of this instance family can deliver up to 200,000 IOPS.

  • Network:

    • Supports IPv4 and IPv6. For more information about IPv6 communication, see IPv6 communication.

    • Provides high network PPS performance.

    • Network performance scales with the instance type.

The c5 family includes the following instance types and specifications:

Instance type

vCPUs

Memory (GiB)

Baseline bandwidth (Gbit/s)

Packet rate (PPS)

Multi-queue

ENIs

Private IPv4 addresses per ENI

IPv6 addresses per ENI

ecs.c5.large

2

4

1

300,000

2

2

6

1

ecs.c5.xlarge

4

8

1.5

500,000

2

3

10

1

ecs.c5.2xlarge

8

16

2.5

800,000

4

4

10

1

ecs.c5.3xlarge

12

24

4

900,000

4

6

10

1

ecs.c5.4xlarge

16

32

5

1,000,000

4

8

20

1

ecs.c5.6xlarge

24

48

7.5

1,500,000

6

8

20

1

ecs.c5.8xlarge

32

64

10

2,000,000

8

8

20

1

ecs.c5.16xlarge

64

128

20

4,000,000

16

8

20

1

Compute-intensive instance family ic5

  • Use cases:

    • Web frontend servers.

    • Data analytics, batch computing, and video encoding.

    • High packet forwarding rate (PPS) workloads, such as live video commenting and telecom service forwarding.

    • Frontend servers for massively multiplayer online (MMO) games.

  • Compute:

    • The vCPU-to-memory ratio is 1:1.

    • Processor: Intel® Xeon® Platinum 8163 (Skylake) or 8269CY (Cascade Lake) with a base frequency of 2.5 GHz and an all-core turbo frequency of 2.7 GHz, delivering stable compute performance.

  • Storage:

  • Network:

    • Supports only IPv4.

    • Delivers an ultra-high packet forwarding rate (PPS).

    • Network performance scales with the instance type.

The following table lists the instance types and specifications for the ic5 family.

Instance type

vCPU

Memory (GiB)

Network baseline bandwidth (Gbit/s)

Packet forwarding rate (PPS)

NIC queues

ENIs

Private IPv4s per ENI

ecs.ic5.large

2

2

1

300,000

2

2

6

ecs.ic5.xlarge

4

4

1.5

500,000

2

3

10

ecs.ic5.2xlarge

8

8

2.5

800,000

2

4

10

ecs.ic5.3xlarge

12

12

4

900,000

4

6

10

ecs.ic5.4xlarge

16

16

5

1,000,000

4

8

20

ecs.ic5.6xlarge

24

24

7.5

1,500,000

6

8

20

ecs.ic5.8xlarge

32

32

10

2,000,000

8

8

20

ecs.ic5.16xlarge

64

64

20

3,000,000

16

8

20

Compute and network-enhanced instance family sn1ne

  • Use cases:

    • High packet rate (PPS) workloads, such as live video commenting and telecom service forwarding.

    • Web frontend servers.

    • Massively multiplayer online (MMO) game frontends.

    • Data analytics, batch computing, and video encoding.

    • High-performance scientific and engineering applications.

  • Compute:

    • The vCPU-to-memory ratio is 1:2.

    • Processor: Powered by 2.5 GHz Intel ® Xeon ® E5-2682 v4 (Broadwell), Platinum 8163 (Skylake), or 8269CY (Cascade Lake) processors.

      Note

      Instances in this family may be deployed on different server platforms. If your application requires a consistent server platform, we recommend that you use c6, c6e, or c7 instances.

  • Storage:

    • I/O-optimized instance.

    • Supported cloud disk types: standard SSDs and ultra disks. For more information, see block storage.

  • Network:

    • Supports IPv4 and IPv6. For more information, see IPv6 communication.

    • Delivers an ultra-high packet rate (PPS).

    • Network performance scales with the instance type.

The sn1ne instance family includes the following instance types:

Instance type

vCPUs

Memory (GiB)

Baseline bandwidth (Gbit/s)

Packet rate (PPS)

NIC queues

ENIs

Private IPv4 addresses

IPv6 addresses

ecs.sn1ne.large

2

4

1

300,000

2

2

6

1

ecs.sn1ne.xlarge

4

8

1.5

500,000

2

3

10

1

ecs.sn1ne.2xlarge

8

16

2

1,000,000

4

4

10

1

ecs.sn1ne.3xlarge

12

24

2.5

1,300,000

4

6

10

1

ecs.sn1ne.4xlarge

16

32

3

1,600,000

4

8

20

1

ecs.sn1ne.6xlarge

24

48

4.5

2,000,000

6

8

20

1

ecs.sn1ne.8xlarge

32

64

6

2,500,000

8

8

20

1

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