PROBLEM TO BE SOLVED: To provide a nonvolatile memory cache having an architecture capable of reducing energy consumption of the writing operation of data for each cache line in a memory cache using the memory cell of an MRAM such as a spin injection memory.SOLUTION: In the memory cache, a...
Volatile volatile是防止编译器优化指令,与地址本身的cache和device属性无关 如下面代码 void non_vo_test(void) { int *test = 3; int data; data = *test; } void vo_test(void) { volatile int *test = 3; int data; data = *test; } 0000000000000184 <non_vo_test>: 184: d65f03c0 ret 00...
3.Use CPU Memory Barrier Instructions(x86) •Only CPU Memory Barrier –asm volatile(“mfence”); •CPU + Compiler Memory Barrier –asm volatile(“mfence” ::: ”memory”); •Use Memory Barrier in C/C++ 4. Use Lock Instruction to Implement a Memory Barrier Reads or writes cannot be...
There are two forms of memory in a computer: volatile (RAM) and non-volatile (ROM). Secondary memory (hard disc) is stored rather than memory. However, if we classify memory in terms of space or location, we may divide it into four types: Register memory Cache memory Primary memory ...
The NV cache memory layer may include an NV cache for caching pages for a database from the set of database on the DBMS. The NV cache may be configured through invoking a configuring stored procedure persistent on the DBMS. A request is received at the NV cache memory layer for ...
A cache between a USB and a flash memory: The cache utilizes multiple banks of Magnetic Random Access Memory (MRAM). The size of each bank in the MRAM corresponds to the size of a sector in the flash memory. Initially, the data received from the host is stored in one of the MRAM ban...
5 CHI (Issue E) protocol. For connection to a non-coherent external interconnect, the memory ...
As traditional dynamic random-access memory (DRAM) caches become more expensive and require more power to scale, companies like Facebook are exploring hardware choices such as non-volatile memory (NVM) drives to augment their caching systems. This DRAM and NVM hybrid model is a step forward, bu...
这个问题反应了一点，对于底层的东东，L1/L2/L3 三级Cache的延迟了、Memory的带宽和延迟了，等等，这些...
SOLUTION: One or more long-term storage media are integrated with a non-volatile memory. In one embodiment, one portion of the non-volatile memory is used as a write buffer and a read cache for writing and reading to the long-term storage media. Interfaces are provided for controlling the...