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IOPS of gigabit ethernet

post #1 of 4
Thread Starter 
Does anyone know what kind of 4k random read/write perfomance I could get with a gigabit lan card? Would it make a big difference if I was using and intel lan or a realtek lan?
what about if i have 2 computers directly connected vs going through a switch?


If your wondering what the point of this is:
I have a server with a lot of unused ram,
wondering if i could network boot off of a ramdisk faster than an ssd.

Doing some testing, will update if this goes anywhere
Edited by justinjja - 6/14/11 at 5:48pm
Lappy
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Lappy
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post #2 of 4
A dedicated Intel card would be faster than an onboard realtek (even better if you enable jumbo frames)
The difference between 2 connected pc's via a switch or directly connected should be neligible (depends on the switch)

A ramdisk would be faster than an SSD, not advisable though. As soon as your PC loses power your data would be gone.

Network booting wouldn't be a good idea for a boot drive (don't think it's even possible). Besides there's more overhead transferring data over a network.
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RED912
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post #3 of 4
Yes, the Intel will be much higher performance then the Realtek.

No the performance will not be great at all.
    
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post #4 of 4
You're not going to boot faster than an SSD over a network drive.

Added latency of ethernet is already higher the entire seek time for SSD, also you would be limited to ~115 MB/sec transfer speed.
Quote:
64 bytes from 172.31.255.251: icmp_req=10 ttl=128 time=0.222 ms
64 bytes from 172.31.255.251: icmp_req=11 ttl=128 time=0.219 ms
64 bytes from 172.31.255.251: icmp_req=12 ttl=128 time=0.209 ms
64 bytes from 172.31.255.251: icmp_req=13 ttl=128 time=0.219 ms

Already double SSD latency just from Ethernet.
Edited by beers - 6/15/11 at 6:05am
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Das Rig, Ja?
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