What is the least amount of CPU cores required to enable CoreXL?

CoreXL, which is a feature of Check Point's security gateway architecture, enhances performance by allowing multiple instances of the firewall to run in parallel across different CPU cores. To enable CoreXL, it is essential to have a minimum of two CPU cores. This is because CoreXL distributes the processing of security tasks across multiple cores, so having only one core would not allow for this distribution and would not provide any benefits of parallel processing.

By having at least two CPU cores, CoreXL can separate the process handling between them, increasing throughput and improving overall gateway performance. This design allows for better utilization of hardware resources and helps to scale performance as demand increases. If fewer than two cores are present, the benefits provided by the CoreXL feature cannot be realized, essentially rendering it ineffective.