Performance Tuning At The Edge Using Cache Allocation Technology
Red Hat News, Friday, September 8,2023
Industrial environments often need deterministic instruction execution, which poses a challenge for general compute systems.
Despite appearing to execute instructions instantly, a user process receives only a commitment for execution as soon as a CPU becomes available, which in a general compute system is dependent on other processes competing for the same resources (CPU, memory and others).
Although this is usually acceptable, extremely critical applications, such as stopping an industrial process or relocating a robotic arm, require a guarantee of when execution will occur. This problem is usually solved by using special purpose compute systems, which might have specially-built hardware and a tightly controlled software environment.