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Anonymous users2024-02-07Generally speaking, the larger the L2 cache of the CPU, the better, but some CPUs are not sensitive to L2 cache.
The CPU caches useful data first, and then retrieves it from the cache if it cannot be found. Early L1 caching.
It is to be inside the CPU, and the L2 cache is external to the external cache. In the first-level cache, there is also a data cache.
and instruction caching. Both can be accessed by the CPU at the same time, reducing contention for caches.
conflict. There is also usually a tracking cache embedded in it. In a CPU with L2 cache, the hit rate for reading L1 cache is 80%. That is, useful found in the CPU-level cache.
data, which accounts for 80% of the total data, and the remaining 20% is read from the L2 cache. Due to the inaccuracy.
To be sure, the hit rate of reading the L2 cache is also around 80% (from two.
Level 2 caches read useful data for 16% of total data) and now Level 2 caches do the CPU as well
Internally, there is no longer much distinction between first- and second-level caches. Whether it's a L1 cache or a L2 cache capacity.
The increase in the number of transistors inside the CPU will inevitably lead to an increase in the number of transistors in the CPU, which will inevitably be limited by the process technology. Plus.
On the CPU voltage sensitivity, the L2 cache hit rate is not high. So let's talk about CPU L2 cache.
Whether the bigger the better depends on the sensitivity of the CPU to the L2 cache. The first-level cache in the cache is the decision.
Critical caching for CPU performance.
Why does the CPU have high frequency and low energy? Such as the early technology is not yet mature Core 2. Intel Corporation.
The CPU frequency and L2 cache have been increased, so that the number of CPU transistors has increased, and the pipeline has also been lengthened. subject to the process.
The technical limitations are much lower than AMD CPU performance of the same tier. Although AMD's main frequency is compared to L2 cache.
Intel's CPU is low, but the L1 cache is much larger than Intel's.
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Anonymous users2024-02-06The bigger the cache, the better, and the same goes for hard drives.
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Anonymous users2024-02-05The L2 cache also has a great impact on the CPU operation efficiency, and the L2 cache is generally integrated in the CPU, but there are two types: inside the chip and outside, the L2 cache integrated inside the chip is the same frequency L2 cache as the CPU (that is, the full-speed L2 cache), and the L2 cache integrated outside the chip runs at the frequency of the L2 cache.
is half the frequency of the CPU (i.e., half-speed L2 cache) and therefore operates less efficiently. So the L2 cache is still very large.
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Anonymous users2024-02-04The CPU cache, which stores the data for the CPU to perform operations and the output results after the CPU operations.
The larger the cache, the faster the CPU runs.
To put it simply, the larger the CPU cache, the better the person's memory.
As a result, the CPU performance of a large cache will be better.
As for how much difference there is in the performance of CPUs with different cache capacities, we need to do a specific evaluation to know.
Caching is very important for CPUs.
So what exactly is this cache? >>>More
Professional: Don't mislead the two upstairs, On the current multi-core CPU world, 1024 is not, several cores share 1024 L2 cache, there is no data exchange problem between caches, Intel's core series is such an architecture, 2x512, means 2 cores, each core has exclusive 512 L2 cache. AMD's U is such a design, the design of the second-level cache, there are size, speed constraints, because of Intel's U, the memory controller is outside the core, in this way, the exchange speed between the memory and the CPU can not be very fast, in order to reduce the number of low-speed exchanges between the CPU and the memory, therefore, Intel designs the second-level cache as a whole, and the capacity is relatively large, which is equivalent to, a big house is full of food, and nearby residents can quickly and easily obtain food and share resources, and AMD's U, because the memory controller is directly integrated into the CPU, his front-side bus, very fast, and, the cost of the L2 cache is relatively large in the CPU, AMD due to architectural reasons, can not design the L2 cache into a shared mode, so it can only be exclusive to each core, and then through the HT bus (AMD's proprietary front-end bus bus) to connect the 2 CPUs, this way is a bit backward, so the current AMD technology, It was abandoned by Intel for a whole generation, but the speed of the computer is not only determined by the CPU, because the AMD core integrates the memory controller, which is higher than the memory controller that Intel puts on the motherboard, the speed is higher, so, overall, the difference is not very big, but in terms of CPU monomer, Intel is still strong.
The so-called CPU cache is a storage area that comes with the CPU, which is much faster than the memory speed. The so-called L2 cache is slower than the L1 cache, cheaper, but much faster than memory. The low-end ones are more common at 128K and 256K, and the better ones are 512K, and the 1M L2 cache is already very high, and it is now the mainstream high-end chip that AMD and P4 compete in terms of time, such as P4 506 and AMD 64-bit 3000+.
Well: Erjia is basically useless, and according to our teacher's words, your Mandarin is really ordinary.
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