Lecture - 29 Memory Hierarchy : Cache Organization

[hellwitchify]

It can be sorta tough to understand this stuff, if you don't try it out. I suggest downloading the free program Logisim and actually build something! I like the lectures by the way...

[sachingangualy]

marvellous way of explaing ths tough topic thank u sir

[Arpitgupta363]

wht is cache coherence?is this topic present in dis lecture?

[vedhasp]

Good lecture all in all, Thanks IITs and IISc!!!

[vedhasp]

38:15 How often do you prefetch: "Again, its a tradeoff"

Between???

[vedhasp]

How are we likely to reduce miss rate with 4 way set associative cache? He said "Reason being that if degree of associativity is low, there are more conflicts. And therefore, some of the blocks which you may like to use later on may get thrown out"

[vedhasp]

@vedhasp This is around 16:05 FYI. Please help me understand this statement.

[LigGLe]

@vedhasp

I think what he means is, that with higher associativity you can avoid more conflicts. It's what he also said earlier. For example to reduce conflicts you could also use an 8-way associative cache. Or even fully associative. But with increasing associativity you also have an increasing complexity of the cache management.

So, reducing conflicts results in higher associativity, but results in higher complexity.

I hope it's the answer to your question

[vedhasp]

@LigGLe Thanks for taking pains to write reply, I appreciate! My question however remains unanswered (sorry), awesome if you could try answering. "How/Why" would miss-rate get reduced with associativity increase?

[ikramakhund]

thank u very much sir for uploading this video

Arif ullah khan from pakistan

[mohsinamin]

same remarkes!

[mohsinamin]

it seems that this professor has not him self made this presentation. due to which the listner can understand well because ^prof seems to be confused.