Machine Type and CPU Platform

Users can choose different types of UHosts according to the type and scale of applications they need to deploy when creating a UCloud Global UHost. At present, UCloud Global UHost provides the following seven types: Outstanding O, Outstanding PRO, Outstanding Memory, Outstanding Shared, General, High Frequency, and GPU. Different instances offer different combinations of computation, memory, storage, and network bandwidth. You may flexibly choose UHosts as you need.

Instance Type

Details of UCloud Global UHost types:

Details of the Outstanding O family:

Instance iteration information:

• Outstanding Series: The flagship UHost series of UCloud Global supports Network Enhancement 2.0 and RSSD cloud disk, thus the maximum network performance reaches 1000W PPS, and the maximum storage performance reaches 120W IOPS.
• Previous Generation Series: The previous generation of UHosts only supports local disk/ordinary cloud disk/SSD cloud disk. In the available zones where Outstanding Series is online, the previous generation series will not continue to supply.
• Instance integration: The original 4 models, OutstandingO, OutstandingOS, OutstandingOLITE, and OutstandingOMAX, have now been merged into OutstandingO.
• Instance Family Definition: The original Outstanding O Cloud Server instances are defined as the o1 and o2 families. The o2 family is built on a newer generation of servers compared with the o1 family. Currently, the o2 family is available only in selected availability zones. Pricing varies by instance family; please refer to the console for details.

Outstanding O Type

1. Overview:
   Outstanding O is the flagship UHost with excellent computation, storage, and network performance. The maximum network performance reaches 1000W PPS, and the maximum storage performance reaches 120W IOPS. After the integration of UCloud Global instances, Outstanding O now provides two different architecture-based CPU platforms, i.e., x86 and Arm architecture. Currently, Outstanding O UHosts perform well in most scenarios such as web services, gaming services, data analysis, and processing.

2. Supported CPU platforms: Intel Cascadelake(Gold6248); Intel Cascadelake-Refresh(Gold6248R); Intel IceLake(8358P);AMD EPYC2(Rome7542); Ampere Altra(8030).

3. CPU and memory combinations (supporting ratios from 1:1 to 1:8, with different available ratios in different availability zones; specific ratios shall be subject to the creation console):

4）Use Cases:

• Web Services
• Gaming Services
• Databases, Data Analysis
• Internet Components, Android Development
• All-around scenario

5）Supported functionalities and restrictions:

• Supports Network Enhancement 2.0
• Supports RSSD Cloud Disk Specific choice range:

• Limitation: Linux servers with Outstanding only support high kernel version images (i.e., images with kernel version ≥ 4.19).

Outstanding PRO - General

1. Overview:
   Outstanding PRO - General is a UHost model with dedicated vCPUs. There’s no CPU resource competition among UHosts, offering stable and high-quality computational performance consistently.

2. Supported CPU platforms: AMD EPYC2(Rome 7542); AMD EPYC2(Rome 7H12).

3. CPU-Memory combination (Support a ratio of 1:2 and 1:4. For accurate combinations, refer to the creation console):

4. Use Cases:

• Rendering scenarios: CPU offline rendering delivers high quality rendering at an excellent price/performance ratio
• Gaming business scenarios: MMO online multiplayer games, meets the demands for high performance and stability
• Other scenarios: Game accelerators, websites, and Web applications that require higher computation and network capabilities, and medium and heavy load enterprise applications

5. Supported functionalities and restrictions:

• Supports Network Enhancement 2.0
• Supports RSSD Cloud Disk Specific choice range:

• Limitation: Linux servers with Outstanding only support high kernel version images (i.e., images with kernel version ≥ 4.19).

Outstanding PRO - Enhanced

1. Overview:
   Outstanding PRO - Enhanced uses AMD EPYC (Rome 7F52) CPU (3.5GHz-3.9GHz), which has the highest single-core computational power in the Outstanding series. Additionally, its memory bandwidth is twice as much as Outstanding O, and its L3 cache per core is four times as much as Outstanding O. The maximum network performance reaches 1000W PPS, and the maximum storage performance reaches 120W IOPS.

2. Supported CPU platforms: AMD EPYC2(Rome 7F52).

3. CPU-Memory combination (The ratio supported ranges from 1:1 to 1:8. Different availability zones may offer different combinations.For accurate combinations, refer to the creation console):

4. Use Cases:

• Suitable for businesses that require single-core computational power, such as high-frequency trading, high-performance data, EDA, etc.

5. Supported functionalities and restrictions:

• Supports Network Enhancement 2.0
• Supports RSSD Cloud Disk Specific choice range:

• Limitation: Linux servers with Outstanding only support high kernel version images (i.e., images with kernel version ≥ 4.19).

Outstanding Memory Type

1. Overview:
   Outstanding Memory Type is a large-capacity memory product that comes with the Intel’s 3rd-generation® Xeon® Scalable Processor IceLake (Platinum 8358P) and Intel® Optane™ Persistent Memory (PMem). It provides a super-large processor-to-memory ratio of up to 1:16, significantly reducing the cost of memory-oriented applications per GiB of memory. In addition, Outstanding Memory type adds AMD platform, providing a super-large CPU-to-memory ratio of up to 1:16.

2. Supported CPU platforms: Intel IceLake(Platinum 8358P) ; AMD EPYC2(Rome7542).

3. CPU-Memory combination (The ratio supported includes 1:8 and 1:16. Different availability zones may offer different combinations.For accurate combinations, refer to the creation console):

4. Use Cases

• IMDB-like databases: Use more memory than disk, such as Redis and Memcached.
• Container servers: Increase container density.
• Key-Value databases: Typically user-developed applications that provide a large in-memory environment.
• Recommendation systems: Used in index servers, parameter servers, etc.
• Search applications: Such as Tencent WeChat search and Magi.com’s search engine.
• Game servers: Expand memory to increase the number of external connections.
• CDN servers: Use large memory to cache video data, improving performance and reducing disk dependency.

5. Supported functionalities and restrictions:

• Supports Network Enhancement 2.0
• Supports RSSD Cloud Disk Specific choice range:

• Limitation: Linux servers with Outstanding only support high kernel version images (i.e., images with kernel version ≥ 4.19).

Outstanding Shared Type

1. Overview:
   Outstanding Shared uses a non-binding CPU scheduling mode. In a CPU resource-sharing environment, coupled with the high cost-performance cloud computing services provided by Huabei’s self-built data center, users can enjoy premium cloud computing services at a low price in non-performance-sensitive scenarios.

2. Supported CPU platforms: AMD EPYC2(Rome 7542).

3. CPU-Memory combination (The ratio supported ranges from 1:1 to 1:4. Different availability zones may offer different combinations.For accurate combinations, refer to the creation console):

4. Use Cases:

• Medium and small website building, forum communities, and Web applications
• Development environment configuration, server building, code repositories, microservices, testing
• Lightweight Databases, caches
• Lightweight enterprise applications and application services

5. Supported functionalities and restrictions:

• Supports Network Enhancement 2.0
• Supports RSSD Cloud Disk Specific choice range:

• Limitation: Linux servers with Outstanding only support high kernel version images (i.e., images with kernel version ≥ 4.19).

General Type N

1. Overview:
   General Type N is the previous generation type, which provides flexible CPU, memory, and disk combinations.This type is suitable for scenarios with balanced computation, storage, and network requirements.

2. CPU platforms supported: Intel IvyBridge/Haswell/Broadwell/Skylake

3. CPU-Memory combination (Support a ratio of 1:1-1:8. For accurate combinations, refer to the creation console):

4. Use Cases:

• Fully applicable

5. Supported functionalities and restrictions:

• Network Enhancement 1.0 / Network Enhancement 2.0 (Only Skylake and above support)
• Disk Type Support: Only Support Cloud Disk, Regular Local Disk, and SSD Local Disk

Specific choice range:

High Frequency Type C

1. Overview:
   Instance with CPU frequency ≥3.2GHz, excellent single-core performance.

2. Supported CPU platforms: Intel Skylake

3. CPU-Memory combination (Support a ratio of 1:1-1:8. For accurate combinations, refer to the creation console):

4. Use Cases:

• Suitable for computational businesses such as high-frequency trading, rendering, AI, etc.

5. Supported functionalities and restrictions:

• Network Enhancement 1.0
• Disk Type Support: Only Support Cloud Disk, Regular Local Disk, and SSD Local Disk

Specific choice range:

CPU Platform

CPU Platform Overview

The CPU platform attribute refers to the CPU microarchitecture version of the host machine where the instance is located, which includes the following options:

• Intel IvyBridge
• Intel Haswell
• Intel Broadwell
• Intel Skylake
• Intel Cascadelake
• Intel Cascadelake-Refresh
• Intel IceLake
• Intel EmeraldRapids
• AMD EPYC2
• Arm Altra

The main difference between each CPU platform is the different hardware architecture and instruction set.

You can choose the lowest CPU platform when creating or let the backend fully automate the assignment. For example, when users choose the general type with the CPU platform ≥ Intel Haswell (V3) during creation, the backend scheduling system may schedule the host to a host machine with Haswell, Broadwell, or Skylake platforms.

Best practices for choosing a CPU platform

1. The CPU platform is an advanced option for creating UHosts. For ordinary web sites/APPs/databases/devops and other non-heavy computing businesses (where the average CPU usage is below 30%) and those with no requirements for instruction sets, it is recommended to select the automatic assignment.

2. For businesses with requirements for instruction sets (such as software that explicitly requires the AVX instruction set), it is recommended to make selections with reference to the following table:

3. For businesses with clear requirements for computing performance, it is recommended to choose the latest generation available in the current availability zone.