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Processor cache is intermediate memory between the processor itself and main memory (RAM).
Because processors can read data so much faster than main memory, the speed of a processor would essentially be limited to the speed of RAM if we couldn't find a way to increase the efficiency of accessing data in main memory. Caches, which have a much lower access time than RAM, help to mitigate this problem.
Caches work on the principle of spacial locality. That is to say, they use the idea that if you access a location in main memory, then it is highly likely that the next memory location you want to access is very close to where you are. When you access main memory, the cache will actually pull in a "chunk" of data (often called a "cache line") in the hope that the next time you try to access data it will already be in the cache.
Typically there are two levels of cache (though with the increasing popularity of multi-core processors, three levels of cache are becoming more and more necessary).
The first level of cache (L1 cache) is what is directly accessed by the processor and is therefore the fastest (and most expensive) cache. L1 cache is usually split into two parts: data cache and instruction cache. The instruction cache holds the instructions of running programs that the processor needs to execute. The data cache holds the data being used by current instructions.
The second level of cache (L2 cache) is where the L1 cache pulls in information from. L2 cache is slower than L1 cache, but is more affordable and can be much larger than L1. With the exception of L3 caches mentioned above, this is the cache which pulls information in from main memory.
Wiki User
∙ 15y ago
Wiki User
∙ 8y agoCache (pronounced "CASH") Memory, is a type of memory used directly by the processor for storing instructions that are to be executed.
A "pipeline cache" for example will store up a number instructions locally at the processor ready for execution.
It fetches a number of instructions, and while executing those, it fetches the next batch of instructions. Rather than execute, fetch, execute, fetch etc..
This speeds up performance as the processor doesn't have to wait for the instructions to be retrieved from the original program source before it can execute.
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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 CPU uses cache memory to store instructions that are repeatedly required to run programs, improving overall system speed. The advantage of cache 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.
Wiki User
∙ 15y agoProcessor Memory is called Cache. This is memory on your processor that is super fast to store instructions, etc. Generally the more Cache a processor has, the more workload the processor can handle since it can store the instructions without having to access them again.
Wiki User
∙ 11y agoL3 is shared between all core.
L1 is typically unique to a processor core.
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What is a cache outside the processor called?
L2 cache. Today's processors all have some memory on the processor chip (called a die). Memory on the processor die is called Level 1 cache (L1 cache). Memory in the processor package, but not on the processor die, is called Level 2 cache (L2 cache). Some processors use a third cache farther from the processor core, but still in the processor package, which is called Level 3 cache (L3 cache).
What are the type of cache memory?
There are different type of cache memory: processor cache memory, cache memory ram,1 cache memory l2, cache memory, CPU cache memory, disk cache memory, hard disk cache, cache memory motherboard.
What memory serves as a staging area from the processor?
Cache memory
What are the two types of cache memory?
There are different type of cache memory: processor cache memory, cache memory ram,1 cache memory l2, cache memory, CPU cache memory, disk cache memory, hard disk cache, cache memory motherboard.
What is the name of the memory cache that is shared by cores in a multicore processor?
L3 Cache
What is an example of L2 cache memory size?
Level 2 (L2) cache is built onto the processor. On Older slot-mounted processors, L2 cache was external to the processor die, and ran at slower speeds than the processor. on socketed processors, L2 cache is built onto the processor. If the processor does not find the desired memory locations in L1 cache, it checks L2 cache next. However Processors with larger L2 caches perform most tasks much more quickly than processors that have smaller L2 caches for two reasons. Cache memory is faster than main memory and the processor checks cache memory for needed information before checking main memory.
What is the name of the memory that sits between the processor and the primary memory?
Cache
What is on chip memory?
It is integrated with Processor. Also called Cache Memory.
What is the memory of the cache that is closest to the processor die but is not housed on the die?
Level 2 cache (L2 cache)
What is the name of the memory cache that is shared by cores in a multi-core processor?
L3 cache
What is the name of the memory cache that is shared by cores in a multie-core processor?
L3 cache
What is an examples of an L2 cache size?
Level 2 (L2) cache is built onto the processor. On Older slot-mounted processors, L2 cache was external to the processor die, and ran at slower speeds than the processor. on socketed processors, L2 cache is built onto the processor. If the processor does not find the desired memory locations in L1 cache, it checks L2 cache next. However Processors with larger L2 caches perform most tasks much more quickly than processors that have smaller L2 caches for two reasons. Cache memory is faster than main memory and the processor checks cache memory for needed information before checking main memory.
