Definitions for "L1 cache"
Keywords:  cache, cpu, clock, processor, sram
Level 1 cache is cache built into the microprocessor and contains a subset of the contents of the L2 cache.
in systems with two separate sets of cache memory between the CPU and standard memory, the set nearest the CPU. L1 cache is often provided within the same integrated circuit that contains the CPU. In operation, the CPU accesses L1 cache memory; if L1 cache memory does not contain the required reference, it accesses L2 cache memory, which in turn accesses standard memory, if necessary. [SILC99
Level 1 cache is a small piece of very fast memory that's on the CPU chip itself, usually meant for holding instructions as they get executed. It sits between the CPU registers and the L2 cache.
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