Instance families with high clock speeds (hf series) provide CPU-to-memory ratios of 1:2, 1:4, and 1:8 and are suitable for scenarios such as massively multiplayer online (MMO) games, high-performance scientific computing scenarios such as high-performance computing, and large and medium-sized database systems.
Background information
Before you read further in this topic, you must be familiar with the following information:
Classification and naming of instance types. Familiarize yourself with the instance family categories, naming conventions of instance types, and differences between instance families. For more information, see Classification and naming of instance types.
Instance type metrics. For information about the metrics of instance types, see Instance type metrics. You can also call the DescribeInstanceTypeFamilies and DescribeInstanceTypes operations to query the instance families and the details of all instance types provided by ECS.
Instructions for selecting instance types based on your business scenarios. For more information, see Instance type selection.
After you determine an instance type for your use case, you may need to learn about the following information:
Regions in which the instance type is available for purchase. Instance types that are available for purchase vary based on the region. You can go to the Instance Types Available for Each Region page to view the instance types available for purchase in each region. Alternatively, you can call the DescribeRegions and DescribeZones operations to query the available regions and the zones in a specific region.
Estimated instance costs. You can calculate the price of instances that uses different billing methods in the Price Calculator. You can also call the DescribePrice operation to query information about the most recent prices of ECS resources.
Instructions for purchasing an instance. You can go to the ECS instance buy page to place a purchase order for instances.
You may be concerned about the following information:
Retired instance families. If you cannot find an instance type in this topic, the instance type may be in a retired instance family. For information about retired instance families, see Retired instance families.
Supported instance type changes. Before you change the instance type of an instance, check whether the instance type can be changed and identify compatible instance types. For more information, see Instance types and families that support instance type changes.
Intel® Xeon® Cooper Lake processor-powered instance families | Intel® Xeon® Platinum 8269CY (Cascade Lake) processor-powered instance families | Not recommended instance family (If the following instance families are sold out, we recommend that you use the instance families in the preceding columns.) |
hfc7, compute-optimized instance family with high clock speeds
Introduction: This instance family offloads a large number of virtualization features to dedicated hardware by using the third-generation SHENLONG architecture to provide predictable and consistent ultra-high performance and reduce virtualization overheads.
Supported scenarios:
Scenarios in which large volumes of packets are received and transmitted, such as live commenting and telecom data forwarding
High-performance frontend server clusters
Frontend servers for MMO games
Data analytics, batch processing, and video encoding
High-performance scientific and engineering applications
Compute:
Offers a CPU-to-memory ratio of 1:2.
Uses Intel® Xeon® Cooper Lake processors that deliver an all-core turbo frequency of 3.8 GHz and have a minimum clock speed of 3.3 GHz to provide consistent computing performance.
Allows you to enable or disable Hyper-Threading.
NoteBy default, Hyper-Threading is enabled for ECS instances. For more information, see Specify and view CPU options.
Storage:
Is an instance family in which all instances are I/O optimized.
Supports only ESSDs and ESSD AutoPL disks.
Provides high storage I/O performance based on large computing capacity.
NoteFor information about the storage I/O performance of the next-generation, enterprise-level instance families, see Storage I/O performance.
Network:
Supports IPv4 and IPv6.
Provides ultra-high packet forwarding rates.
Provides high network performance based on large computing capacity.
The hfc7 instance family includes the following instance types: ecs.hfc7.large, ecs.hfc7.xlarge, ecs.hfc7.2xlarge, ecs.hfc7.3xlarge, ecs.hfc7.4xlarge, ecs.hfc7.6xlarge, ecs.hfc7.8xlarge, ecs.hfc7.12xlarge, and ecs.hfc7.24xlarge. Click the following panel to see a table describing the specifications of each instance type in this instance family. For information about the metrics of instance types, see Instance type metrics.
hfg7, general-purpose instance family with high clock speeds
Introduction: This instance family offloads a large number of virtualization features to dedicated hardware by using the third-generation SHENLONG architecture to provide predictable and consistent ultra-high performance and reduce virtualization overheads.
Supported scenarios:
Scenarios where large volumes of packets are received and transmitted, such as live commenting and telecom data forwarding
Enterprise-level applications of various types and sizes
Game servers
Small and medium-sized database systems, caches, and search clusters
High-performance scientific computing
Video encoding applications
Compute:
Offers a CPU-to-memory ratio of 1:4.
Uses Intel® Xeon® Cooper Lake processors that deliver an all-core turbo frequency of 3.8 GHz and have a minimum clock speed of 3.3 GHz to provide consistent computing performance.
Allows you to enable or disable Hyper-Threading.
NoteBy default, Hyper-Threading is enabled for ECS instances. For more information, see Specify and view CPU options.
Storage:
Is an instance family in which all instances are I/O optimized.
Supports only ESSDs and ESSD AutoPL disks.
Provides high storage I/O performance based on large computing capacity.
NoteFor information about the storage I/O performance of the next-generation, enterprise-level instance families, see Storage I/O performance.
Network:
Supports IPv4 and IPv6.
Provides ultra-high packet forwarding rates.
Provides high network performance based on large computing capacity.
The hfg7 instance family includes the following instance types: ecs.hfg7.large, ecs.hfg7.xlarge, ecs.hfg7.2xlarge, ecs.hfg7.3xlarge, ecs.hfg7.4xlarge, ecs.hfg7.6xlarge, ecs.hfg7.8xlarge, ecs.hfg7.12xlarge, and ecs.hfg7.24xlarge. Click the following panel to see a table describing the specifications of each instance type in this instance family. For information about the metrics of instance types, see Instance type metrics.
hfr7, memory-optimized instance family with high clock speeds
Introduction: This instance family offloads a large number of virtualization features to dedicated hardware by using the third-generation SHENLONG architecture to provide predictable and consistent ultra-high performance and reduce virtualization overheads.
Supported scenarios:
Scenarios where large volumes of packets are received and transmitted, such as live commenting on videos and telecom data forwarding
High-performance databases and in-memory databases
Data analytics, data mining, and distributed memory caching
Enterprise-level memory-intensive applications such as Hadoop clusters and Spark clusters
Compute:
Offers a CPU-to-memory ratio of 1:8.
Uses Intel® Xeon® Cooper Lake processors that deliver an all-core turbo frequency of 3.8 GHz and have a minimum clock speed of 3.3 GHz to provide consistent computing performance.
Allows you to enable or disable Hyper-Threading.
NoteBy default, Hyper-Threading is enabled for ECS instances. For more information, see Specify and view CPU options.
Storage:
Is an instance family in which all instances are I/O optimized.
Supports only ESSDs and ESSD AutoPL disks.
Provides high storage I/O performance based on large computing capacity.
NoteFor information about the storage I/O performance of the next-generation, enterprise-level instance families, see Storage I/O performance.
Network:
Supports IPv4 and IPv6.
Provides ultra-high packet forwarding rates.
Provides high network performance based on large computing capacity.
The hfr7 instance family includes the following instance types: ecs.hfr7.large, ecs.hfr7.xlarge, ecs.hfr7.2xlarge, ecs.hfr7.3xlarge, ecs.hfr7.4xlarge, ecs.hfr7.6xlarge, ecs.hfr7.8xlarge, ecs.hfr7.12xlarge, and ecs.hfr7.24xlarge. Click the following panel to see a table describing the specifications of each instance type in this instance family. For information about the metrics of instance types, see Instance type metrics.
hfc6, compute-optimized instance family with high clock speeds
Introduction: This instance family offloads a large number of virtualization features to dedicated hardware by using the SHENLONG architecture to provide predictable and consistent ultra-high performance and reduce virtualization overheads.
Supported scenarios:
Scenarios where large volumes of packets are received and transmitted, such as live commenting on videos and telecom data forwarding
Web frontend servers
Frontend servers for MMO games
Data analytics, batch processing, and video encoding
High-performance scientific and engineering applications
Compute:
Offers a CPU-to-memory ratio of 1:2.
Uses 3.1 GHz Intel® Xeon® Platinum 8269CY (Cascade Lake) processors that deliver a turbo frequency of 3.5 GHz to provide consistent computing performance.
NoteThe processors used by this instance family have a clock speed of 3.1 GHz. However, the Intel System Studio (ISS) feature may cause a lower clock speed to be displayed. Alibaba Cloud is working on this issue. This issue does not affect the actual clock speeds of your instances.
You can separately run the following commands to use the turbostat tool to view the actual clock speeds:
yum install kernel-tools
turbostat
Allows you to enable or disable Hyper-Threading.
NoteBy default, Hyper-Threading is enabled for ECS instances. For more information, see Specify and view CPU options.
Storage:
Is an instance family in which all instances are I/O optimized.
Supports Enterprise SSDs (ESSDs), ESSD AutoPL disks, standard SSDs, and ultra disks.
Provides high storage I/O performance based on large computing capacity.
NoteFor information about the storage I/O performance of the next-generation, enterprise-level instance families, see Storage I/O performance.
Network:
Supports IPv4 and IPv6.
Provides ultra-high packet forwarding rates.
Provides high network performance based on large computing capacity.
The hfc6 instance family includes the following instance types: ecs.hfc6.large, ecs.hfc6.xlarge, ecs.hfc6.2xlarge, ecs.hfc6.3xlarge, ecs.hfc6.4xlarge, ecs.hfc6.6xlarge, ecs.hfc6.8xlarge, ecs.hfc6.10xlarge, ecs.hfc6.16xlarge, and ecs.hfc6.20xlarge. Click the following panel to see a table describing the specifications of each instance type in this instance family. For information about the metrics of instance types, see Instance type metrics.
hfg6, general-purpose instance family with high clock speeds
Introduction: This instance family offloads a large number of virtualization features to dedicated hardware by using the SHENLONG architecture to provide predictable and consistent ultra-high performance and reduce virtualization overheads.
Supported scenarios:
Scenarios where large volumes of packets are received and transmitted, such as live commenting on videos and telecom data forwarding
Enterprise-level applications of various types and sizes
Websites and application servers
Game servers
Small and medium-sized database systems, caches, and search clusters
Data analytics and computing
Computing clusters and memory-intensive data processing
Compute:
Offers a CPU-to-memory ratio of 1:4.
Uses 3.1 GHz Intel® Xeon® Platinum 8269CY (Cascade Lake) processors that deliver a turbo frequency of 3.5 GHz to provide consistent computing performance.
NoteThe processors used by this instance family have a clock speed of 3.1 GHz. However, the Intel System Studio (ISS) feature may cause a lower clock speed to be displayed. Alibaba Cloud is working on this issue. This issue does not affect the actual clock speeds of your instances.
You can separately run the following commands to use the turbostat tool to view the actual clock speeds:
yum install kernel-tools
turbostat
Allows you to enable or disable Hyper-Threading.
NoteBy default, Hyper-Threading is enabled for ECS instances. For more information, see Specify and view CPU options.
Storage:
Is an instance family in which all instances are I/O optimized.
Supports ESSDs, ESSD AutoPL disks, standard SSDs, and ultra disks.
Provides high storage I/O performance based on large computing capacity.
NoteFor information about the storage I/O performance of the next-generation, enterprise-level instance families, see Storage I/O performance.
Network:
Supports IPv4 and IPv6.
Provides ultra-high packet forwarding rates.
Provides high network performance based on large computing capacity.
The hfg6 instance family includes the following instance types: ecs.hfg6.large, ecs.hfg6.xlarge, ecs.hfg6.2xlarge, ecs.hfg6.3xlarge, ecs.hfg6.4xlarge, ecs.hfg6.6xlarge, ecs.hfg6.8xlarge, ecs.hfg6.10xlarge, ecs.hfg6.16xlarge, and ecs.hfg6.20xlarge. Click the following panel to see a table describing the specifications of each instance type in this instance family. For information about the metrics of instance types, see Instance type metrics.
hfr6, memory-optimized instance family with high clock speeds
Introduction: This instance family offloads a large number of virtualization features to dedicated hardware by using the SHENLONG architecture to provide predictable and consistent ultra-high performance and reduce virtualization overheads.
Supported scenarios:
Scenarios where large volumes of packets are received and transmitted, such as live commenting on videos and telecom data forwarding
High-performance databases and in-memory databases
Data analytics, data mining, and distributed memory caching
Enterprise-level memory-intensive applications such as Hadoop clusters and Spark clusters
Compute:
Offers a CPU-to-memory ratio of 1:8.
Uses 3.1 GHz Intel® Xeon® Platinum 8269CY (Cascade Lake) processors that deliver a turbo frequency of 3.5 GHz to provide consistent computing performance.
NoteThe processors used by this instance family have a clock speed of 3.1 GHz. However, the Intel System Studio (ISS) feature may cause a lower clock speed to be displayed. Alibaba Cloud is working on this issue. This issue does not affect the actual clock speeds of your instances.
You can separately run the following commands to use the turbostat tool to view the actual clock speeds:
yum install kernel-tools
turbostat
Allows you to enable or disable Hyper-Threading.
NoteBy default, Hyper-Threading is enabled for ECS instances. For more information, see Specify and view CPU options.
Storage:
Is an instance family in which all instances are I/O optimized.
Supports ESSDs, ESSD AutoPL disks, standard SSDs, and ultra disks.
Provides high storage I/O performance based on large computing capacity.
NoteFor information about the storage I/O performance of the next-generation, enterprise-level instance families, see Storage I/O performance.
Network:
Supports IPv4 and IPv6.
Provides ultra-high packet forwarding rates.
Provides high network performance based on large computing capacity.
The hfr6 instance family includes the following instance types: ecs.hfr6.large, ecs.hfr6.xlarge, ecs.hfr6.2xlarge, ecs.hfr6.3xlarge, ecs.hfr6.4xlarge, ecs.hfr6.6xlarge, ecs.hfr6.8xlarge, ecs.hfr6.10xlarge, ecs.hfr6.16xlarge, and ecs.hfr6.20xlarge. Click the following panel to see a table describing the specifications of each instance type in this instance family. For information about the metrics of instance types, see Instance type metrics.
hfc5, compute-optimized instance family with high clock speeds
Supported scenarios: Scenarios such as high-performance frontend servers, high-performance scientific and engineering applications, MMO games, and video encoding.
Compute:
Offers a CPU-to-memory ratio of 1:2.
Uses 3.1 GHz Intel® Xeon® Gold 6149 (Skylake) processors.
Provides consistent computing performance.
Storage:
Is an instance family in which all instances are I/O optimized.
Supports standard SSDs and ultra disks.
Network:
Supports only IPv4.
Provides high network performance based on large computing capacity.
Instance types
Instance type | vCPUs | Memory (GiB) | Network baseline bandwidth (Gbit/s) | Packet forwarding rate (pps) | NIC queues | ENIs | Private IPv4 addresses per ENI |
ecs.hfc5.large | 2 | 4 | 1 | 300,000 | 2 | 2 | 6 |
ecs.hfc5.xlarge | 4 | 8 | 1.5 | 500,000 | 2 | 3 | 10 |
ecs.hfc5.2xlarge | 8 | 16 | 2 | 1,000,000 | 2 | 4 | 10 |
ecs.hfc5.3xlarge | 12 | 24 | 2.5 | 1,300,000 | 4 | 6 | 10 |
ecs.hfc5.4xlarge | 16 | 32 | 3 | 1,600,000 | 4 | 8 | 20 |
ecs.hfc5.6xlarge | 24 | 48 | 4.5 | 2,000,000 | 6 | 8 | 20 |
ecs.hfc5.8xlarge | 32 | 64 | 6 | 2,500,000 | 8 | 8 | 20 |
hfg5, general-purpose instance family with high clock speeds
Supported scenarios: Scenarios such as high-performance frontend servers, high-performance scientific and engineering applications, MMO games, and video encoding.
Compute:
Offers a CPU-to-memory ratio of 1:4 (excluding the instance type with 56 vCPUs).
Uses 3.1 GHz Intel® Xeon® Gold 6149 (Skylake) processors.
Provides consistent computing performance.
Storage:
Is an instance family in which all instances are I/O optimized.
Supports standard SSDs and ultra disks.
Network:
Supports only IPv4.
Provides high network performance based on large computing capacity.
Instance types
Instance type | vCPUs | Memory (GiB) | Network baseline bandwidth (Gbit/s) | Packet forwarding rate (pps) | NIC queues | ENIs | Private IPv4 addresses per ENI |
ecs.hfg5.large | 2 | 8 | 1 | 300,000 | 2 | 2 | 6 |
ecs.hfg5.xlarge | 4 | 16 | 1.5 | 500,000 | 2 | 3 | 10 |
ecs.hfg5.2xlarge | 8 | 32 | 2 | 1,000,000 | 2 | 4 | 10 |
ecs.hfg5.3xlarge | 12 | 48 | 2.5 | 1,300,000 | 4 | 6 | 10 |
ecs.hfg5.4xlarge | 16 | 64 | 3 | 1,600,000 | 4 | 8 | 20 |
ecs.hfg5.6xlarge | 24 | 96 | 4.5 | 2,000,000 | 6 | 8 | 20 |
ecs.hfg5.8xlarge | 32 | 128 | 6 | 2,500,000 | 8 | 8 | 20 |
ecs.hfg5.14xlarge | 56 | 160 | 10 | 4,000,000 | 14 | 8 | 20 |