What is a PC s L2 cache? What does it do? What is the basis for distinguishing good from bad?

L2 cache is also called L2 cache, it is some buffer memory inside the processor, its role is the same as memory, it exists inside the CPU but the speed is much faster than the memory, its main role is to store the data that needs to be processed in advance with it to speed up the access speed, the L2 cache is one of the keys to CPU performance, in the case of CPU core does not change, increasing the L2 cache capacity can greatly improve the performance. The difference between the high and low end of the CPU of the same core is often different in the L2 cache, which shows the importance of the L2 cache to the CPU, so generally speaking, the larger the L2 cache, the better the performance of the CPU.

L2 caching. i.e. l2 cache. Due to the limitation of L1 cache capacity, in order to increase the computing speed of the CPU again, a high-speed memory, that is, a L2 cache, is placed outside the CPU.

The main frequency is flexible, and can be the same frequency as the CPU, or it can be different. When the CPU reads data, it looks first in L1, then from L2, then in memory, and then in external memory. Therefore, the impact of L2 on the system cannot be ignored.

The earliest CPU caches were monolithic and had a very low capacity, and Intel has categorized caches since the Pentium era. At that time, the cache integrated in the CPU core was no longer sufficient to meet the needs of the CPU, and the manufacturing process constraints did not allow the cache capacity to be greatly increased. Hence the emergence of a cache integrated on the same board or motherboard as the CPU, which is put at this point.

The cache integrated by the CPU core is called L1 Cache, while the external one is called L2 cache.

L2 cache is one of the keys to CPU performance, and increasing the L2 cache capacity can greatly improve performance without changing the CPU core. The difference between the high and low end of the CPU of the same core is often different in the second-level cache, which shows the importance of the second-level blocking cache for the CPU.

L2 cache is also called L2

cache, which is some buffer memory inside the processor that acts just like memory.

It acts like a temporary storage place in a warehouse, where goods are temporarily stacked in a buffer area when they are lowered from a transport vehicle, and then moved to an internal storage area for long-term storage. The goods are stored in this area for a short period of time, which is a temporary yard.

Initially, there was only one level of cache, but then the processor speed increased, and the first level of cache was not enough, so a second level of cache was added. L2 cache is slower and larger memory than L1 cache, and is mainly used for temporary data exchange between L1 cache and memory.

The result of heavy use of L2 cache is a disproportionate increase in processor efficiency and cost**.

L2 cache is some buffer memory inside the processor, L2 cache is one of the keys to CPU performance, in the case of CPU core does not change, increasing the L2 cache capacity can greatly improve performance, like memory.

In a word, of course, the larger the secondary capacity, the better.

If you want to get the most out of your CPU.

Then set the size of the corresponding L2 cache of the CPU in the BIOS, and it will not be set.

You can also use third-party tools.

For example:"Optimizer"