If there had not been for the cache memory
to compensate the low speed of the DRAM, most part of the central processing unit's processing power would have been wasted as the processor would be bound to the DRAM's bandwidth and latency.
Else the cache memory
should fetches, it from main memory using ETA method.
Simulation of Cache Memory
Systems on Symmetric Multiprocessors with Educational Purposes.
No cache memory
replacement policy that can provide the lowest miss ratio for all types of workloads is yet available.
In addition to cache memory
, one can think of RAM itself as a cache of memory for hard disk storage since all of RAM's contents come from the hard disk initially when we turn your computer on and load the operating system (we loading it into RAM) and later as you start new applications and access new data.
* high-speed, high-capacity cache memory
offsets disk-bound workloads to remove I/O contention for a large number of servers;
This work proposes a protocol which manages the coherence in the cache memory
in systems with distributed memory.
Some storage systems have controllers that include processors, cache memory
, host interfaces and internal hard disk drives (integrated).
Operating at the maximum clock frequency of the PowerPC 405 core, the new design loads and executes code exclusively from the integrated PowerPC 16KB instruction and 16KB data cache memory
. This innovative approach eliminates the need for block RAM resources and accelerates program instruction and data access with faster code execution.
The company cut the cost of upgrading the Level 3 cache memory
used in the Power servers by 15% (still $13,750 to move from 400MHz to 500MHz per 128 MB, though), and also cut several memory upgrade paths by as much as 20%.
Collateral damage attributed to this trojan includes the sending of a list of passwords dug out of a victim machine's cache memory
to its 'master' (the hacker controlling its actions).
The top-end Madison chip is expected to run at 1.5GHz and include 6MB of on-chip L3 cache memory
and will deliver about a 50% performance boost over the current 1GHz "McKinley" Itanium 2 processors, which have 3MB of L3 cache.
Including a new distributed concurrency engine and support for massive distributed cache memory
, ECP delivers high performance and scalability for multiserver configurations.
This approach requires more frequent movement of the data between the main memory and the cache, and between the cache memory
and the processor.
The small memory cell size will enable Intel to cost-effectively increase microprocessor performance by adding more on-die cache memory
and increasing overall logic density.