Blog

For a cache with a Hit Rate of .95, a Hit Time of 2ns, and a Miss Penalty of 200ns, what is the average access time in nanoseconds?     

A 2-row GShare predictor is shown below. It has a 2-bit GHR. The least significant bit of the PC is used for indexing into this predictor.  GHR: 10 Index 00 01 10 11 0 10 11 10 00 1 01 01 10 10 The branch PC is 0xEEEE1206. The actual behavior is NT. The branch is predicted as [behavior] (enter T or NT).  Show the updated predictor. Only enter values that change, and enter a dash ‘-‘ (without the quotes) for entries that don’t change.  Index 00 01 10 11 0 [000] [001] [010] [011] 1 [100] [101] [110] [111] The updated GHR is [ghr]. 

Consider a 5-stage pipeline where branch behavior is known at the end of the third stage, EX.  You’re given a workload comprised of 25% branches, 10% loads, 5% stores, and 50% arithmetic. 75% of the branches are correctly predicted.  What is the average number of stall cycles for this workload, assuming there are no hazards aside from control hazards?

Which patient must exert effort to control convergence  and accommodation at distance?

Use of eye drops would be advantageous:

The duochrome test makes use of the fact that to the hyeropic eye black letters look sharper against a _________ background. 

What is one way to reduce conflict misses?

Which of the following makes the most sense?

If calibration of the keratometer reveals a discrepancy:

In evaluating an axial length scan, the retinal echo must be: