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To: TimF who wrote (33675)	9/8/2017 3:41:12 PM
From: zzpat	Respond to of 363034

I don't know how they can do any of this when the speed of a hard drive isn't that fast. One can imagine they'd have to dump all relative information into RAM before the actual trade, but when they're doing millions of trades per second the system would have access some sort of server or drive. How do they do it that fast? Back to nanos: "If you’re an equity trader using a Bloomberg Terminal or Thomson Reuters Eikon, latency of more than 200 nanoseconds is considered to be shockingly pedestrian, putting you at risk of buying or selling a stock at a higher or lower price than the one you saw quoted. Now, with its announcement of TCPDirect, Solarflare said it has cut latency by 10X, to 20-30 nanoseconds. HPC