Computer Evolution and Performance Part 13

Organization and Architecture Chip
- Increase the speed processor.

• In carried out primarily by reducing the size of "Logic gate."

>> "Gate" more, more meetings, the speed increases.
>> Processing time can be shortened.
- Addition of the cache size and speed.

• It is part of the processor chip.

>> Cache to reduce the access time is significant.
- Changing the organization and processor architecture.

• Improving the effectiveness and speed of execution.

• Processing in parallel.

Intel's Microprocessor Performance


The increase in capacity Cache
- Consists of two or three levels of cache between the processor and main memory.
- The increase in chip density.

• The more cache memory in the chip.

>> Faster access the cache.
- In the Pentium 10% allocated to the cache.
- In the Pentium 4 is allocated 50%.

New Approach - Multiple Cores
- Multiple processors on one chip.

• Large shared cache

- With one processor, proportionate increase performance straight with the increase of complexity.
- If the software can utilize multiple processor, the processor can mean two performance fold.
- So, take two simple processor in the chip better than one processor that is more complex.
- With two processors, cache it bigger.

• Consumption of power in the logical memory is smaller than the logical process.

- Example: IBM POWER4

• Two cores based on the Power PC.

POWER4 Chip Organization