Linked by Thom Holwerda on Thu 21st Oct 2010 22:28 UTC, submitted by tux68
"The London Stock Exchange has said its new Linux-based system is delivering world record networking speed, with 126 microsecond trading times. The news comes ahead a major Linux-based switchover in twelve days, during which the open source system will replace Microsoft .Net technology on the group’s main stock exchange. The LSE had long been criticised on speed and reliability, grappling with trading speeds of several hundred microseconds. The record breaking times were measured on the LSE’s Turquoise smaller dark pool trading venue, where trades are conducted anonymously. That network switched over to Linux from Cinnober technology two weeks ago. Speed is crucial as more firms trade automatically at lightning speed, using advanced algorithms."
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RE: The limited information makes it a meaningless metric..
by rom508 on Fri 22nd Oct 2010 12:53
in reply to "The limited information makes it a meaningless metric.."
Member since:2007-04-20
I kind of agree. Not only they replaced Windows for Linux, they also replaced the major components of stock exchange software. I think the latter has more impact on performance.
I have a feeling Linux is not the major contributing factor, i.e. replace it with BSD or Solaris and you're unlikely to see major performance drop.
Over the years all operating systems have been tuned for maximum efficiency, it's not the kernel developers, but application developers that write inefficient and buggy code.
RE[2]: The limited information makes it a meaningless metric..
by Kebabbert on Fri 22nd Oct 2010 13:59
in reply to "RE: The limited information makes it a meaningless metric.."
Member since:2007-07-27
RE[2]: The limited information makes it a meaningless metric..
by gnufreex on Fri 22nd Oct 2010 21:15
in reply to "RE: The limited information makes it a meaningless metric.."
Member since:2010-05-06
RE: The limited information makes it a meaningless metric..
by Lennie on Fri 22nd Oct 2010 17:20
in reply to "The limited information makes it a meaningless metric.."
Member since:2007-09-22
This article has more information:
http://lwn.net/Articles/411064/
(you need to be a subscriber or wait 2 weeks)
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2006-05-26
There's only a couple things made clear:
1. It replaces a Windows system while using Linux
2. It's faster than the old system, at least while they tested it
The article says very little about implementation details: then again, most readers wouldn't be remotely qualified to understand that.
This doesn't really speak either way to Windows inferior performance/reliability or Linux's superior performance/reliability as it does for the implementation of the two trading systems.
Until they measure while controlling for the system-dependent variables, it means... little. And, of course: chances are the system hasn't had all the same conditions thrown at it that the old system has during its existence: who is to say with the limited amount of real-world testing that it will be more reliable? That remains to be proven with reality. For all we know, there's some obscure Linux kernel bug that'll be hit, that will take it down unexpectedly: I've seen it happen in past versions of the kernel with massive databases pounding the system.
I'll come back to this if someone can post a followup that documents what all the variables are, and if the Linux system uses the same logic as the Windows system, or if it is a completely different implementation/design written by different people, but until then, this is merely a PR fluff piece.