philb19
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relationship between throughput and latency - 10GB
Hi
I like analogy of a truck has high throughput (can cary allot) but likely high latency (slow).
My question is: If i replaced "all" of my NIcs and switches from 1gb to 10GB would I achieve "both" higher throughput "and" lower latency - lets say there is some distance latency of 1km - would 10GB cards/switchs see a faster response time buy putting more data on the wire per unit of time?
does 10gb improve throughput and latency
I like analogy of a truck has high throughput (can cary allot) but likely high latency (slow).
My question is: If i replaced "all" of my NIcs and switches from 1gb to 10GB would I achieve "both" higher throughput "and" lower latency - lets say there is some distance latency of 1km - would 10GB cards/switchs see a faster response time buy putting more data on the wire per unit of time?
does 10gb improve throughput and latency
It's the type of nic you want to look at. If you are looking at copper than the throughput will increase put you will still have a higher letancy than if you were using fiber.
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For throughput you have to consider everything in the chain from source to destination (slowest one wins) . What 10G will give you considering everything else remains the same is the ability to handle more traffic through the pipe without network contention issues. AKA going from a 1 lane highway to a 10 lane highway, great if you own a Ferrari but not so great if you own a Model T, getting on and off of the network pipe will be faster. Latency should decrease as there is less contention for the pipe.
Latency is a function of media type and distance, if the new cards are using same media type over same distance latency would be constant.
This is true providing pipe is not saturated using current cards. If the pipe is saturated then a bigger pipe will improve both though-put and latency.
BM
This is true providing pipe is not saturated using current cards. If the pipe is saturated then a bigger pipe will improve both though-put and latency.
BM
Latency is a function of processing. On a fiber link, a bit will travel at the speed of... Light. This is true whether it's 1g or 10g. So the latency of a 1g link is the same as a 10g link. If the NIC or intermediate device is saturated or is simply incapable of processing the incoming data, you're going to see an increase of latency regardless of the speed of the link.
This is an area where using the term "speed" can really create confusion.
And with respect to your analogy, I prefer the multi-lane highway analogy. All the lanes have the same "speed" but because there are more lanes, you can move more cars (data).
This is an area where using the term "speed" can really create confusion.
And with respect to your analogy, I prefer the multi-lane highway analogy. All the lanes have the same "speed" but because there are more lanes, you can move more cars (data).