misfetch

Etymology

Definitions

1. 1

   An error that occurs when the wrong block of code is fetched in advance.

   • It also shows the conditional branch misprediction rate ( due to both misprediction and target address misfetch), the return misprediction rate, and the BTB miss rate .
   • All branches and calls cause a misfetch when the branch is not present in the BTB.
   • Unfortunately, the typical optimizations for cachelike structures, such as larger capacity or associativity, will not help in decreasing misfetches.
2. 2

   The act of fetching to the wrong location.

3. 3

   To fetch the wrong block of code or instruction.

   • However, a single misfetched instruction can cause the system to begin executing code from nonexistent or improper memory locations, and it is unlikely to recover on its own.
   • The number of cycles wasted on each mispredicted or misfetched branch is larger than in a RISC processor.
4. ›+ 1 more definitionshow fewer

   1. 4

      To steer to the incorrect location when trying to fetch somewhere.

      • Furthermore, the direct container handling at shipside can also be controlled by the ACYAS in order to prevent containers from misfetching.
      • In Halfway Reach we mis-fetched and narrowly missed colliding with a fast moving freighter.

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