Misses

Question

Consider the system have L₁ data cache with 50 percent of hit rate and take 2 cycles when hit in L₁ cache, L₂ cache with 70% of hit rate and take 15 cycles when hit in L₂ cache and main memory with 100% of hit rate and 200 cycles when hit in main memory to access a block. If main memory speed is improved 15%, then the improvement in L₁ miss time is ________. (upto 2 decimal place)

Comments

Sir, is it the case that :    The miss penalty of a cache level is the effective time for next level of cache ??

like say for L2 :-  L2 miss time = L3 hit rate * L3 hit time + L3 Miss rate * L3 Miss time ??

---

Sir similar doubt in this question please help me with this too :  https://gateoverflow.in/233718/two-level-of-cache

---

$EMAT = L_1 Hit \ Time \  + \ L_1 Miss \ Rate \  \times L_1 Miss Time $

yes i agree with you "The miss penalty of a cache level is the effective time for next level of cache"