L1ohjevälimuistin
L1ohjevälimuisti, often referred to as the L1 instruction cache, is a small, extremely fast memory located on the processor chip itself. Its primary purpose is to store recently used instructions, allowing the CPU to access them much quicker than fetching them from main memory (RAM). This significantly speeds up program execution by reducing the latency associated with instruction retrieval.
The L1 instruction cache is part of a hierarchical cache system. It is the closest and fastest
The size of the L1 instruction cache is typically very small, often measured in kilobytes. This small