Linux and the New York Stock Exchange

[Lennart Sorensen]

On Mon, Nov 30, 2009 at 11:02:07AM -0500,  wrote:
> On Sat, Nov 28, 2009 at 02:15:36AM -0500, Daniel Armstrong wrote:
> > Interesting factoid:
> > 
> > "NYSE's systems run under high pressure and tight constraints. They
> > process some three billion transactions per day - more than Google
> > does - and those transactions need to execute in less than one
> > millisecond. Customers can switch to competing exchanges instantly and
> > for almost no cost, so if NYSE's systems are not performing, its
> > customers will vanish. A typical trading day involves the processing
> > of 1.5TB of data; some 8 petabytes of data are kept online. And this
> > whole operation runs on Linux... Downtime is to be limited to 90
> > seconds per year."
> > 
> > I would concede this is a bit more hard-core than my Asus netbook
> > running Debian Squeeze... :-)
> > 
> > Source: http://lwn.net/Articles/361508/
> 
> And of course London is going to use a linux based system, as is a number
> of other places (with the same software).  They were using (or were
> planning to use) some microsoft software which was apparently not flexible
> enough, took to long to get changes made to, too expensive, and too slow.
> The linux based system is about 10 times faster at doing trades.

I see London's system crashed again last week (they are still using the
microsoft system).  Hopefully they can switch to the new one soon.

http://www.theregister.co.uk/2009/11/26/lse_crash_again/

-- 
Len Sorensen
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