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Instance Specifications

Updated on 2025-01-20 GMT+08:00

FlexusX supports the performance mode. The performance mode can provide the ultimate, stable performance assurance at additional costs. The instance specifications vary depending on whether performance mode is enabled. For more information, see Enabling Performance Mode for a FlexusX Instance.

FlexusX Compute Resources

FlexusX instances use the x86 architecture. The following table lists the compute resources when performance mode is enabled and disabled.

Compute Resource in Disabled Performance Mode

Compute Resource in Enabled Performance Mode

  • 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
  • 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
NOTE:

The vCPU and memory specifications of FlexusX instances vary slightly in different regions. For details, see the specifications displayed on the console.

The FlexusX series may use various types of CPUs. The processors are named General Purpose Processor to reduce the impact on services due to inconsistent processor names in an OS.

Specifications Details

Table 1 and Table 2 list the specifications of FlexusX instances with performance mode disabled or enabled.

Table 1 QoS specifications with performance mode disabled

vCPU

Assured/Max. Intranet Bandwidth (Gbit/s)

Max. Intranet PPS (10,000)

Max. NIC Queues

Max. NICs

Max. Supplementary NICs

Virtualization

2

0.2/2

30

2

2

8

KVM

4

0.4/3

50

2

2

16

KVM

6

0.6/4

60

2

2

24

KVM

8

0.8/6

80

2

2

32

KVM

12

1.2/8

90

4

3

48

KVM

16

1.6/12

100

4

3

64

KVM

Table 2 Specifications with performance mode enabled

vCPU

Assured/Max. Intranet Bandwidth (Gbit/s)

Max. Intranet PPS (10,000)

Max. NIC Queues

Max. NICs

Max. Supplementary NICs

Virtualization

2

1/2

40

2

2

16

KVM

4

1.5/3

60

2

3

32

KVM

8

2.5/6

100

4

4

64

KVM

12

4/8

150

4

6

96

KVM

16

5/12

200

8

8

128

KVM

20

5/13

220

8

8

128

KVM

24

6/14

250

8

8

192

KVM

28

6/15

280

8

8

192

KVM

32

8/16

300

16

8

256

KVM

NOTE:
The intranet bandwidth and PPS of a FlexusX instance are determined by the instance specifications.
  • Assured intranet bandwidth: the guaranteed bandwidth allocated to a FlexusX instance when there is a network bandwidth contention in the entire network
  • Maximum intranet bandwidth: the maximum bandwidth that can be allocated to a FlexusX instance when the instance does not compete for network bandwidth (other instances on the host do not have high requirements for network bandwidth)
  • Maximum intranet PPS: the maximum capability of FlexusX instances in sending and receiving packets. PPS stands for Packets per Second, indicating the number of packets sent per second. It is usually used to measure the network performance.
  • Maximum NIC queues: allocates NIC interrupt requests to multiple vCPUs for higher PPS performance and bandwidth. For instructions about how to enable NIC multi-queue, see Enabling NIC Multi-Queue.
  • Maximum NICs: the maximum number of NICs that can be attached to a FlexusX instance. An NIC is an elastic network interface. For details, see Elastic Network Interface.
  • Maximum supplementary NICs: the maximum number of supplementary NICs that can be attached to a FlexusX instance. A supplementary NIC is a supplement to NICs. If the number of NICs that can be attached to your instance cannot meet your requirements, you can use supplementary NICs. For details, see Supplementary Network Interface.

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