Definition of prefetch in English:

prefetch

Line breaks: pre|fetch
Computing

verb

Pronunciation: /priːˈfɛtʃ
 
/
[with object]
  • Transfer (data) from main memory to temporary storage in readiness for later use: this model prefetches instructions before they need to be executed
    More example sentences
    • The target can thus be prefetched before the actual address has been calculated and placed in a register.
    • It's primarily designed to prefetch large quantities of data to help prevent processor stalls.
    • The accelerator scours a page and prefetches the content behind each link.

noun

Pronunciation: /ˈpriːfɛtʃ
 
/
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  • A process or instance of prefetching data.
    More example sentences
    • Some changes were made to the hardware prefetch mechanism to increase its efficiency, in addition to software prefetches now being stored in the trace cache.
    • A mechanism is also described to improve the timeliness of a prefetch by suitably adjusting the value of N after observing the usefulness of the prefetched instructions or data.
    • In fact, all contemporary CPUs have their own data prefetch mechanisms, which allow them to move data into the cache memory.

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