There are many factors that can affect cache performance, such as cache size, cache block size, association and replacement algorithm
If we took size of cache as large as size of main memory then the main purpose of cache(take less time) would come to end, as larger the cache slower would be it's processing speed.
Usually the size of the L2 cache will be larger than the L1 cache so that if data hit in L 1 cache occurs, it can look for it in L 2 cache.. If data is not in both of the caches, then it goes to the main memory...
This hard drive has a 100Gb internal cache.
The maximum size of a cache memory is theoretically equal to the amount of primary memory(RAM).Like Cache only memory architecture where the whole memory space is filled up with the cache only.
Register memory are smaller in size than cache memory and registers are faster than cache..Cache memory store the frequently used data from main memory..
False
Temporal Locality: Concept that a resource will be referenced at one point in time will be referenced again. Cache miss traffic decreases fast when cache size increases and temporal locality determines sensitivity to cache size. Spatial Locality: Concept that likelihood of referencing a resource is higher if a resource near it was referenced. Cache miss traffic does not increase much when line size increases. Spatial locality determines sensivity to line size. ~BR Mukkaysh Srivastav Temporal Locality: Concept that a resource will be referenced at one point in time will be referenced again. Cache miss traffic decreases fast when cache size increases and temporal locality determines sensitivity to cache size. Spatial Locality: Concept that likelihood of referencing a resource is higher if a resource near it was referenced. Cache miss traffic does not increase much when line size increases. Spatial locality determines sensivity to line size. ~BR Mukkaysh Srivastav
The L1 cache on a Pentium 3 (And most all processors) is divided into two caches, the data cache and the instruction cache. This may be because the instructions tend to have a high spacial locality while data has higher temporal locality. At any rate, all 4 variants of the Pentium III used 16Kb data cache and 16Kb instruction cache, which makes 32Kb total. (The size of L2 cache varied based on the core.)
Processing speed is far more important than cache size. Cache is a small amount of memory located in, or around the processor that is used to store small amounts of information that the processor can refer to as a quick reference. There are millions of bits flowing through cache memory every time the processor works. Any more, there is a standard amount of cache memory that is in every processor. Speed is a totally different thing and almost has nothing to do with cache size. Speed is definitely more important.
They have a four megabyte cache,but neither the cache nor the gigahertz is an adequate description of a CPU's overall performance.
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).