Environmental Requirements

**Table 1** x86 environment
Item	Description
Server	x86 VM (KVM)
CPU	Intel Xeon Processor (Skylake, IBRS) 2.1 GHz
OS	CentOS 7.6/openEuler 20.03-LTS-SP1/openEuler 22.03
Tool	Kunpeng DevKit

This practice uses openEuler 20.03 LTS SP1 on x86 as an example. The operations on other OSs are similar.

Table 2 lists the software requirements.

**Table 2** Software requirements
Item	Version	Download URL
Open source software Ragel	Ragel 6.10	Link

Parent topic: Practice 3: Assessing Ragel Software Porting - Analyzing Installed Software