prefetch


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prefetch

prefetch

To bring data or instructions into a higher-speed storage or memory before it is actually processed. See cache.
References in periodicals archive ?
In popularity aware prefetching [14] technique which is using the users access patterns to prefetch the data segments.
The CSQ is accessed by two threads per client: one thread for handling class requests to the server and the second thread for receiving predicted, prefetched classes.
This choice could also be interpreted as a choice when the data is fetched (prefetch or just-in-time, i.e.
Features include a 133MHz front-side bus, enhanced SpeedStep technology, 0.13 micron process construction, 512K full-speed L2 cache, Data Prefetch Logic to anticipate and pre-load data for faster response time, and Deeper Sleep Alert State for extended battery life.
LILJA, Data Prefetch Mechanisms, in ACM Computing Surveys, Vol.32, No.2, June 2000.
However, we note that because the characteristics of I/O devices are such that they operate most efficiently when fetching big blocks, the effectiveness of sequential prefetch depends very much on whether the logically sequential pages are physically sequential on the I/O devices.
The coverage factor is the fraction of original cache misses that are prefetched. A prefetch is unnecessary if the line is already in the cache (or is currently being fetched), and is useless if it brings a line into the cache which will not be used before it is displaced.
A better option is to prefetch the block, that is, to initiate the fetch of the block some i time units before the actual reference; the processor now has to stall for only max{F - i, 0} time units.
The system is network data-management protocol compatible, and incorporates data prefetch and fast cataloging for maximum device speed.
Context-Based Prefetch for Implementing Objects on Relations.
We are interested in hoisting computation out of such loops as well; Figure 12 shows an example of hoisting a prefetch out of a loop.
Selective focusing is also facilitated by database-sampling techniques that can dynamically prefetch data based on user preferences [Hellerstein et al.