[QUESTION] Why is the data tested by kbench very different from the official data?

[yyzhou0811]

Question

Hello, why is there a big gap between the longhorn reading and writing performance I measured and the official one?

Environment

● Cloud provider: AWS
● Nodes: 4 (A node is both a master and a node)
● Storage: 4 NVMe SSD

Benchmarking Tools
● Use kbench as the benchmarking tool.

v1.6.1
● Machine: Linux/UNIX/c5d.2xlarge.x86
● OS: Amazon Linux 2
● Network throughput between nodes : 10Gbps

Additional context

The following is the data I measured

RWO Volume

Here are the official data

[derekbit]

Can you provide more information such as number of replicas?
In addition, the official data is measured on baremetal machines.

[yyzhou0811]

My replicas are 3,The environment is as follows
Cloud provider: AWS
Nodes: 4 (A node is both a master and a node)
Storage: 4 NVMe SSD

Machine: Linux/UNIX/c5d.2xlarge.x86
OS: Amazon Linux 2
Network throughput between nodes : 10Gbps

[derekbit]

Got it. The difference is due to the platform.
cc @PhanLe1010