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Date: Thu, 28 Aug 2008 12:42:51 -0700 (PDT) From: David Miller <davem@...emloft.net> To: rick.jones2@...com Cc: jmalicki@...acarta.com, andi@...stfloor.org, johnpol@....mipt.ru, dada1@...mosbay.com, denys@...p.net.lb, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, juhlenko@...mai.com, sammy@...my.net Subject: Re: loaded router, excessive getnstimeofday in oprofile From: Rick Jones <rick.jones2@...com> Date: Thu, 28 Aug 2008 11:00:48 -0700 > Earlier in the thread mention was made of financial services types. > If someone has knowledge of the (probably) arcane rules under which > they must operate it would be great to hear more. Does some entity > like the SEC (Securities and Exchange Commission in the United > States) mandate some sort of timestamp for when the trading request > "arrives at the trading system" and do they define that "arriving at > the trading system" means? The issue is the ordering of processing the requests. So if request A arrived on interface 1 before request B arrived on interface 2, the trade described in A should be performed before the one in B. This is not "arcance" as you seem to suppose it might be, but rather pretty clear fair handling or requests sent between trading desks. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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