forskjel på L2 og L3 cache?

[genstian]

[Åsmund]

er noe hurtigminne for prosessoren tror jeg. tror og amd ikke liker l3.

[Andreaz_]

er noe hurtigminne for prosessoren tror jeg. tror og amd ikke liker l3.

GENIALT! - svar...

 

For alt jeg vet så spørte han om forskjellen...

[C4STOR]

er noe hurtigminne for prosessoren tror jeg. tror og amd ikke liker l3.

GENIALT! - svar...

 

For alt jeg vet så spørte han om forskjellen...

Ser av signaturen din at du ikke liker at folk snakker nedlatende.......... er det en regel du er frittatt fra??

 

Fra PCGuide.com

* The initial level of storage on a processor are the registers. The registers are where the actually processing input and output takes place.

 

* L1 cache - Then the level 1 cache comes next. It is logically the closest high speed memory to the CPU core / registers. It usually runs at the full speed (meaning the same as the CPU core clockspeed). L1 often comes in size of 8kB, 16kB, 32kB, 64kB or 128kB. But, it is very high speed even though the amount is relatively small.

 

* L2 cache - The next level of cache is L2, or level 2. Nowadays L2 is larger than L1 and it often comes in 256kB, 512kB and 1,024MB amounts. L2 often runs at 1/4, 1/2 or full speed in relation to the CPU core clockspeed.

 

* L3 cache - Level 3 cache is something of a luxury item. Often only high end workstations and servers need L3 cache. Currently for consumers only the Pentium 4 Extreme Edition even features L3 cache. L3 has been both "on-die", meaning part of the CPU or "external" meaning mounted near the CPU on the motherboard. It comes in many sizes and speeds.

 

The point of cache is to keep the processor pipeline fed with data. CPU cores are typically the fastest part in the computer. As a result cache is used to pre-read or store frequently used instructions and data for quick access. Cache acts as a high speed buffer memory to more quickly provide the CPU with data.

 

So, the concept of CPU cache leveling is one of performance optimization for the processor."

 

Answer from masher "There's a little more to it than that. The reasons for multiple cache levels aren't simply to better arrange any die space, but because each cache has differing performance levels (and thus cost associated with it).

 

It varies a bit by core, but in general the P4s L2 cache can be read at half the speed of the L1, L3 at half the L2, and system ram read at about half L3's speed."

 

Er ikke helt sikker på forskjellen selv, så jeg prøver meg med litt Google + quoting

Endret 5. november 2004 av C4STOR

[Andreaz_]

er noe hurtigminne for prosessoren tror jeg. tror og amd ikke liker l3.

GENIALT! - svar...

 

For alt jeg vet så spørte han om forskjellen...

Ser av signaturen din at du ikke liker at folk snakker nedlatende.......... er det en regel du er frittatt fra??

hva var det for noe svar?

 

- Han vil jo bare vite forskjellen på L2 og L3

 

 

Jeg må bare beklage at jeg ruinerer tråden din hotstian

- Men, jeg vet ikke forskjellen på L2 og L3...

 

edit: Kjønte at du syntes jeg snakket/skrev nedvergende mot deg. Selv om du tolket det slik var det ikke slik ment og du skal få mine unskyldninger

Endret 5. november 2004 av Dasse

[genstian]

Fra PCGuide.com

* The initial level of storage on a processor are the registers. The registers are where the actually processing input and output takes place.

 

* L1 cache - Then the level 1 cache comes next. It is logically the closest high speed memory to the CPU core / registers. It usually runs at the full speed (meaning the same as the CPU core clockspeed). L1 often comes in size of 8kB, 16kB, 32kB, 64kB or 128kB. But, it is very high speed even though the amount is relatively small.

 

* L2 cache - The next level of cache is L2, or level 2. Nowadays L2 is larger than L1 and it often comes in 256kB, 512kB and 1,024MB amounts. L2 often runs at 1/4, 1/2 or full speed in relation to the CPU core clockspeed.

 

* L3 cache - Level 3 cache is something of a luxury item. Often only high end workstations and servers need L3 cache. Currently for consumers only the Pentium 4 Extreme Edition even features L3 cache. L3 has been both "on-die", meaning part of the CPU or "external" meaning mounted near the CPU on the motherboard. It comes in many sizes and speeds.

 

The point of cache is to keep the processor pipeline fed with data. CPU cores are typically the fastest part in the computer. As a result cache is used to pre-read or store frequently used instructions and data for quick access. Cache acts as a high speed buffer memory to more quickly provide the CPU with data.

 

So, the concept of CPU cache leveling is one of performance optimization for the processor."

 

Answer from masher "There's a little more to it than that. The reasons for multiple cache levels aren't simply to better arrange any die space, but because each cache has differing performance levels (and thus cost associated with it).

 

It varies a bit by core, but in general the P4s L2 cache can be read at half the speed of the L1, L3 at half the L2, and system ram read at about half L3's speed."

finn den der

 

takker

[sdasdsad]

Er ikke L3 utvidet cpu cache da? Mere rom for "knuse tall" i. Mer cache, bedre cpu.Gi oss mere cache sier jeg.