: Cache (pronounced cash) memory is extremely fast memory that is built into a computer's central processing unit (CPU), or located next to it on a separate chip. : The disk cache is used to hold the most recently-accessed information from the hard disk. If you are using your PC for work that is hard-disk-intensive, you may benefit from increasing the size of your disk cache.The CPU uses cache memory to store instructions that are repeatedly required to run programs, improving overall system speed. The advantage ofcache memory is that the CPU does not have to use the motherboard's system bus for data transfer. Whenever data must be passed through the system bus, the data transfer speed slows to the motherboard's capability. The CPU can process data much faster by avoiding the bottleneck created by the system bus.
When the processor needs to read from or write to a location in main memory, it first checks whether a copy of that data is in the cache. If so, the processor immediately reads from or writes to the cache, which is much faster than reading from or writing to main memory.
The diagram on the right shows two memories. Each location in each memory has a datum (a cache line), which in different designs ranges in size from 8[1] to 512[2] bytes. The size of the cache line is usually larger than the size of the usual access requested by a CPU instruction, which ranges from 1 to 16 bytes. Each location in each memory also has an index, which is a unique number used to refer to that location. The index for a location in main memory is called an address. Each location in the cache has a tag that contains the index of the datum in main memory that has been cached. In a CPU's data cache these entries are calledcache lines or cache blocks.
Cache
Basically for the same reason that cache itself helps increase the speed. If there is more cache memory, the computer will have more information readily available, and there will be less cases where the information CAN'T be found in cache, and the CPU needs to access actual RAM, which is slower (or whatever other source of data the cache is supposed to speed up).
cache memory
cache should small for super computer.
A
processor is the brain of computer, before you purchase, considered the price, the speed, cores, cache and features, if you want low price processor but good for gaming and speed, good choice are amd.
Getting data from memory, or the hard drive is slow. If you store a part of the memory you think you will need soon, or often in cache, it will speed up processing by reducing wait time. Cache is much smaller, but much faster than memory and sits on the processor die.
It takes a long time, in computer time, for the CPU to retrieve stuff out of RAM while running a program. So to speed things up cache was built. Cache holds a small part of the program you are working with and it is easy and fast for the CPU to retrieve it from cache. Cache is memory and it holds data for the CPU.
The L1 cache speed runs at the same speed as the CPU-central processing unit.
A cache miss penalty occurs when the CPU needs data that is not in the cache memory, causing a delay as it fetches the data from the slower main memory. This delay can significantly impact the performance of a computer system by slowing down processing speed and increasing latency in executing tasks.
You can clear the cache by going in the settings. Search for history and cache and you can clear it from there.
Download a program called CPUZ. It should tell you what you need to know about your computer including cache.