Consider the following trace for a (C,B,S)=(6,4,0) cache. A. LD 0x000AB. ST 0x001BC. ST 0x002CD. LD 0x003DE. LD 0x004EF. ST 0x005FG. LD 0x0031H. ST 0x0022I. LD 0x0043J. ST 0x0054K. LD 0x000A How many total misses are there? [tot] How many non-compulsory misses are there? [nc] How many write backs are there?  [wb]

Multiprocessing Questions

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?     

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?

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]. 

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?