Enabling Performance Mode for a FlexusX Instance

Scenarios

FlexusX provides flexible compute resources with QoS-guaranteed performance. FlexusX instances perform as well as exclusive instances most of the time but may occasionally underperform. To meet the strict performance requirements of certain workloads, such as rendering and HPC applications, FlexusX has a performance mode option. If this option is enabled, your FlexusX instances are bound with the underlying CPU cores, so they can provide stable, ultimate QoS-guaranteed performance.

Table 1 lists the differences between FlexusX instances where the performance mode is enabled and disabled. For details about the differences between FlexusX instance specifications, see Instance Specifications.

**Table 1** Differences between FlexusX instances where the performance mode is enabled and disabled
Performance Mode	Enabled	Disabled
Scenarios	Web 3.0 application development, rendering, cryptocurrency, ERP, game servers, e-commerce livestreaming, e-commerce going global, enterprise website building, applet development, and development and testing	E-commerce going global, enterprise website building, applet development, development and testing, enterprise resource planning (ERP), game servers, and e-commerce livestreaming
vCPU allocation logic	CPU cores bound to provide QoS-guaranteed ultimate, stable performance	Flexible compute with QoS-guaranteed performance, close to exclusive instances
Compute resources	vCPU/Memory ratio: flexible custom ratios to meet your specific needs with low-cost resources vCPU/Memory range: 2 to 32 vCPUs and 2 to 256 GiB of memory Basic/Turbo frequency: 2.45 GHz/3.5 GHz	vCPU/Memory ratio: flexible custom ratios to meet your specific needs with low-cost resources vCPU/Memory range: 1 to 16 vCPUs and 1 GiB to 128 GiB of memory Processor: 3rd Generation Intel® Xeon® Scalable Processor Basic/Turbo frequency: 2.8 GHz/3.5 GHz

Precautions

During this process, you may also need to modify the instance specifications if there are insufficient underlying resources.

Billing

Additional charges are required for the performance mode.

Enabling Performance Mode

You can enable performance mode for a FlexusX instance during or after the instance creation.

Performance mode is only available in some regions. For details, see the information displayed on the management console.

Enabling performance mode when purchasing a FlexusX instance
Once the instance is created, you can enjoy stable, ample performance immediately.

Figure 1 Enabling performance mode during purchase
Enabling performance mode after a FlexusX instance is purchased
You can enable the performance mode for the instance using the Modify Specifications option. During this process, you may also need to modify the instance specifications if there are insufficient underlying resources. For details about how to modify specifications, see Modifying the Specifications of a FlexusX Instance.

Figure 2 Enabling performance mode using the Modify Specifications option