disk cache


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Noun1.disk cache - a cache that stores copies of frequently used disk sectors in random access memory (RAM) so they can be read without accessing the slower disk
memory cache, cache - (computer science) RAM memory that is set aside as a specialized buffer storage that is continually updated; used to optimize data transfers between system elements with different characteristics
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References in periodicals archive ?
The same version of the app of the browser for Android brings better scrolling performance and faster page load times when connected to a WiFi by loading from the network cache if the local disk cache is slow.
Documents contained within the Red Disk cache also contained sensitive information, including private keys used for the system to access other servers maintained by the intelligence community.
Like all BarraCuda Pro drives over 4TB, the 12TB drive offers 256MB of disk cache, though its listed sustained sequential transfer rate of 250GB/s is slightly higher than the 220MB/s on earlier drives.
The current popular hybrid disk cache size appears to be around four gigabytes, which should suffice for most home users.
The first of them represents the behaviour of disk cache and it was initially modelled like simple First In First Out (FIFO) queue.
Bandwidth hungry applications are accelerated using a central disk cache of up to 18TB.
Nine peer-reviewed papers look at FASTer FTL for enterprise-class flash memory solid state drives (SSD), enhancing checkpoint performance with staging IO and SSD, NAND flash-based disk cache using SLC/MLC combined flash memory, applying hashing to optimize file systems for small file reads, a distributed network file system supporting fast data insertion and truncation, fast and efficient file system metadata storage, using transparent compression at the block level to increase storage space efficiency, parallel Reed/Solomon coding on multicore processors, and explicit coordination for preventing congestion in data center ethernet.
RAM can also contain a special area called a disk cache that contains the data most recently read in from the hard disk.
In practice, reading from disk is a bit faster than writing and this real-life situation in the model is presented with some smaller service time delay produced by the disk cache. The differences between measured and simulated results for all file sizes are shown in Fig.
A virtual tape library (VTL), sometimes referred to as virtual tape server (VTS), offers storage to a disk cache, which acts as a fast writing buffer.
An external solid-state disk cache can provide advantages beyond these traditional "built-in" caches.