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Level 1 cache (L1 cache)
There is no specific name for memory caches based on physical location. CPU memory caches are named for function, not location.
As such, there are Level 1, Level 2, and Level 3 caches (and, theoretically, there's nothing preventing Levels 4 and up from being created). Each can be located anywhere (on-die, in-package, off-chip, etc.) depending on the design of the CPU and motherboard.
Modern x86 chips from Intel and AMD include up to L3 cache on-die.
What else can I help you with?
Is Cache memory a form of ROM?
No. It's a kind of RAM integrated into your processor. The cache memory is usually small and is used to store data that is being used by the processor because accessing the main RAM directly will be slower. In multiple-processor systems, a problem called cache incoherence can occur when two or more processors access the same region, modifies the data in different ways and not immediately writing back the data to the main RAM. It will cause two different versions of the same region existing simultaneously, causing problems. That is why mutexes or other locks should be used when accessing shared memory.
What are the Uses of Cache a very high speed memory?
Cache is a high-speed memory device that is placed between a microprocessor and a system memory. A Microprocessor usually can process data at a much faster rate than what the system memory can provide. If this disparity isn't handled, we will end up with a microprocessor that's idling most of the time, because it has to wait on main system memory to provide the (or cosnume) data. With a cache, which could operate at a speed near the processor to shuttle data back and forth between processor and memory. Cache memory relies on a concept in computer science called locality of reference. This concept stipulates that when the processor accesses a piece of data, it is highly likely that it will access data that are also in the same locale in memory. A cache subsystem will fetch the requested data and those around to anticpate the next processor request.
Why do you only use L1 L2 and L3 cache on the processor and not for primary memory?
Because those cache memories are super fast and super expensive. (same applies for SSD and HDD hard disks..)
What are processor features?
Features of contemporary processors include a dual core and cache memory. They also have transistors for communicating information and instructions at the same time.
What is discrete cache?
A discrete L2 cache is in the same housing as the processor, but resides on a separate microchip. It typically runs at half the speed of the processor, unlike ATC which resides on the same microchip as the processor and runs at the same speed as the CPU.
What is an L1 cache?
Cache is a special type of memory which is quicker to access. stuff you have recently used will go to your cache so when you perform a function you have just performed it will happen quicker. 4MB is a large cache. Level two Cache is a special memory type that is faster than Lv1 Cache, it is like RAM but it is used by the CPU as a fuction Storage to make that process faster.
What is a type of L2 cache contained within the Pentium processor housing that is embedded on the same core processor die as the CPU itself?
Execution Trace Cache
What is cache coherence and why is it necessary?
Cache coherence is a property of two or more caches mirroring the same shared resource. If all caches agree about the cached content, the caches are coherent. If (at least) one cache is changed the caches are incoherent until the changes are propagated to the other caches.Multiprocessing systems are the context where one will most likley come across the concept of cache coherence. In a shared memory multiprocessor, each processor has its own memory cache, so any change must be mirrored by all other caches, so that all processors see the same memory content. Should a processor happen to use an outdated value, the results are unpredictable. Or, if you like it better, the results are very predictably garbage.
What is cache memory?
A small amount (normally less than 1MB) of high-speed memory residing on or close to the CPU. Cache memory supplies the processor with the most frequently requested data and instructions. Level 1 cache (primary cache) is the cache closest to the processor. Level 2 cache (secondary cache) is the cache second closest to the processor and is usually on the motherboard.AnswerA cache, in computer terms, is a place to store information that's faster than the place where the information is usually stored. Cache memory is fast memory that is used to hold the most recently accessed data in slower main memory. The idea is that frequently accessed data will stay in cache, which allows the CPU to access it more quickly, which means it doesn't have to wait for the data to arrive.In reference to your processor, the Cache Memory is the Processor's internal quick-hand storage that it uses for things that it's currently processing at that given time.As with most things, the more cache memory a processor has, it will usually run smoother and faster than one with less of about the same operating frequency.AnswerCache memory is usually "On Die" which means it is in the processor chip, which allows it to 'talk' with the processor direct at a much higher speed than standard RAM.cache is a small chip, that's usually placed inside the CPU or sometimes its right next to it and is responsible for providing direct access to the commonly used programs, rather than going back to the hard disk and ram again and again so cache makes it more fast than RAM, you know!!!AnswerPronounced cash, a special high-speed storagemechanism. It can be either a reserved section ofmain memory or an independent high-speed storage device. Two types of caching are commonly used inpersonal computers: memory caching and disk caching.A memory cache, sometimes called a cache store orRAM cache, is a portion of memory made of high-speed static RAM (SRAM) instead of the slower and cheaper dynamic RAM (DRAM) used for main memory. Memory caching is effective because mostprograms access the same data or instructions over and over. By keeping as much of this information as possible in SRAM, the computer avoids accessing the slower DRAM.Some memory caches are built into the architectureof microprocessors. The Intel 80486 microprocessor, for example, contains an 8K memory cache, and the Pentium has a 16K cache. Such internal caches are often called Level 1 (L1) caches. Most modern PCs also come with external cache memory, called Level 2 (L2) caches. These caches sit between the CPU and the DRAM. Like L1 caches, L2 caches are composed of SRAM but they are much larger.--------------------------------------------------------------------------------------------------------------------------------ANSWERI would like to point out the disadvantage of the Cache...Just in case the Cache memory is full and data that is required to process or an application required to run doesn't fit into the Principle of Locality (that is not in the near by location) then it is obvious that the time required for the main memory to access the information would increase...coz first the the data need to be relocated into the cache and then process over here if the cache memory was missing it would be quicker...furthermore being such an extensive memories they are very small in Memory Size which requires location and relocation of the data or applications.It allows commonly accessed data to be stored in full and referenced faster than recompiling the data each time.
What is the cache memory used for?
Cache is a high speed buffer memory for storing automatically small areas of frequently used memory, so that the machine does not have to wait for the full memory access time every time it needs to access the data in those areas.Most computers have separate but similar cache memories for data and instructions. This allows the same access time advantages for both, but as data and instructions are usually in different places in memory eliminates any conflicts in usage.Some computers have multiple levels of different speed cache with different sizes. These are typically referred to as L1 cache, L2 cache, L3 cache, etc. with L1 being the fastest, most expensive, smallest size cache closest to the processor; the others are successively closer to the main memory.
What is the difference between the locations of discrete L2 cache and advanced transfer cache?
On-Package L2 cache (discrete L2 cache) is on a separate microchip within the processor housing, while Advanced Transfer Cache (ATC) is located directly on the same die as the processor core.
Is the registry the same as the cache?
No the registry is a place in the processor that does the commands and the math. Cache is where data is stored temporarily so the CPU can access it quickly. There is L1, L2 and L3 cache. Depending on the speed of the processor and the amount of RAM all processors these days have at least L1 cache.
