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From: Valdis.Kletnieks@vt.edu
To: Rick Jones <rick.jones2@hp.com>
Cc: Joe Malicki <jmalicki@metacarta.com>,
	David Miller <davem@davemloft.net>,
	andi@firstfloor.org, johnpol@2ka.mipt.ru, dada1@cosmosbay.com,
	denys@visp.net.lb, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org, juhlenko@akamai.com,
	sammy@sammy.net
Subject: Re: loaded router, excessive getnstimeofday in oprofile
Date: Sun, 31 Aug 2008 22:39:16 -0400	[thread overview]
Message-ID: <20031.1220236756@turing-police.cc.vt.edu> (raw)
In-Reply-To: Your message of "Thu, 28 Aug 2008 11:00:48 PDT." <48B6E7D0.5070307@hp.com>

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On Thu, 28 Aug 2008 11:00:48 PDT, Rick Jones said:

> 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?

As a totally pragmatic point - if the market is in such free-fall that it
matters that your order got in a 10 thousandth of a second after somebody
else's, instead of before, you probably lost at least 5 to 10 times as much
during the time it took somebody to type the damn order in and hit enter.

At that point, you have *bigger* things to worry about.

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  parent reply	other threads:[~2008-09-01  2:39 UTC|newest]

Thread overview: 69+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-08-22  1:57 Denys Fedoryshchenko
2008-08-22  2:23 ` Denys Fedoryshchenko
2008-08-26  9:51 ` Jarek Poplawski
2008-08-26 10:29   ` Denys Fedoryshchenko
2008-08-26 10:47     ` Jarek Poplawski
2008-08-26 10:49       ` Denys Fedoryshchenko
2008-08-26 11:07         ` Jarek Poplawski
2008-08-26 11:15           ` Jarek Poplawski
2008-08-26 11:16             ` Denys Fedoryshchenko
2008-08-26 11:32               ` Jarek Poplawski
2008-08-26 11:32                 ` Denys Fedoryshchenko
2008-08-26 20:14 ` Evgeniy Polyakov
2008-08-26 20:44   ` Eric Dumazet
2008-08-26 20:51     ` Evgeniy Polyakov
2008-08-27 12:09       ` Denys Fedoryshchenko
2008-08-27 12:36         ` Evgeniy Polyakov
2008-08-27 14:00           ` Denys Fedoryshchenko
2008-08-27 14:23             ` Evgeniy Polyakov
2008-08-27 12:54       ` Andi Kleen
2008-08-27 16:07         ` Rick Jones
2008-08-27 16:27           ` Andi Kleen
2008-08-27 16:49             ` Rick Jones
2008-08-27 16:56               ` Andi Kleen
2008-08-27 16:57                 ` Rick Jones
2008-08-27 17:27                 ` Eric Dumazet
2008-08-27 18:32                   ` loaded router, excessive getnstimeofday in oprofile\ Andi Kleen
2008-08-27 22:23                     ` David Miller
2008-08-27 22:38                       ` Andi Kleen
2008-08-27 22:18             ` loaded router, excessive getnstimeofday in oprofile David Miller
2008-08-27 22:39               ` Andi Kleen
2008-08-28  0:45                 ` Nick Piggin
2008-08-28  0:48                   ` David Miller
2008-08-28  1:07                     ` Nick Piggin
2008-08-27 16:17         ` Stephen Hemminger
2008-08-27 17:14           ` Jarek Poplawski
2008-08-27 21:34         ` David Miller
2008-08-28  2:39           ` Jason Uhlenkott
2008-08-28  3:10             ` David Miller
2008-08-28  6:28               ` Joe Malicki
2008-08-28  7:22                 ` Andi Kleen
2008-08-28 15:02                   ` Denys Fedoryshchenko
2008-08-28 19:01                     ` Ilpo Järvinen
2008-08-28 19:31                     ` David Miller
2008-08-28 16:48                   ` Denys Fedoryshchenko
2008-08-28 16:56                     ` Andi Kleen
2008-08-28 18:57                     ` Eric Dumazet
2008-08-28 19:25                       ` Denys Fedoryshchenko
2008-08-28 19:37                         ` Eric Dumazet
2008-08-28 19:55                           ` Denys Fedoryshchenko
2008-08-29 15:43                             ` Stephen Hemminger
2008-08-28 19:36                     ` David Miller
2008-08-28 19:59                       ` Denys Fedoryshchenko
2008-08-29 15:21                   ` Joe Malicki
2008-08-29 15:30                     ` Andi Kleen
2008-08-29 15:43                       ` Joe Malicki
2008-08-29 20:43                     ` Evgeniy Polyakov
2008-08-28 18:00                 ` Rick Jones
2008-08-28 19:42                   ` David Miller
2008-08-28 20:29                     ` Rick Jones
2008-08-28 20:32                       ` David Miller
2008-08-28 20:45                         ` Rick Jones
2008-08-28 20:47                           ` David Miller
2008-09-01  2:39                   ` Valdis.Kletnieks [this message]
2008-09-01  3:51                     ` David Miller
2008-09-01  4:08                       ` Valdis.Kletnieks
2008-09-01  4:10                         ` David Miller
2008-09-02 17:04                       ` Rick Jones
2008-08-28  3:35 ` Stephen Hemminger
2008-08-28  8:49   ` Denys Fedoryshchenko

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