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How do I make a ram drive?

Last response: in Networking
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May 10, 2010 9:28:55 AM

i am referring to a Tom's article about testing gigabit LAN speed, where the author wrote:

{{To do this, we’re going to make a 1 GB RAM drive on both the client and server PCs, and then transfer a 1 GB file between these RAM drives over the network. Since even the slowest DDR2 RAM should be able to handle over 3,000 MB/s of data, the only limiting factor should be how fast our network can run:}}

Can someone tell me how to do this?

More about : make ram drive

May 10, 2010 4:32:06 PM

If you could find the article and link it, it should help us out with your question.

From my understanding your looking for one of these:

http://www.anandtech.com/show/1742

You insert sticks of RAM up to whatever size you would like and they act as a SSD drive. It's the alternative to purchasing an actual SSD.

Hope this helps you on your search.
May 10, 2010 6:00:36 PM

if you just want to test your network card, iperf.

If you want to test SMB, then ram-drive. You may want a 2GB ram drive though because 1gig is ~110MB/sec and you may want ~15sec average to give the stream time to settle.

Also, even if you make a "ram drive" if you over-flow your memory, it will get pushed to swap and be limited by your HD. Make sure you test machine has enough ram

My lowly integrated 1gb NIC does 1.5gbit/sec on full-duplex with ~8% kernel time and 946mbit/sec sending or receiving ~4% kernel. <-- iPerf test
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May 11, 2010 12:15:49 AM

i want to test network speed by transferring a file and exclusing the HDD from the equation. I'm trying to find out why why dlink DGS-100 GB switch and GB lan in both pc's only gives me 2.5MB/sec
!