Warning: strtotime() [
function.strtotime]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'America/Chicago' for 'CDT/-5.0/DST' instead in
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Warning: date() [
function.date]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'America/Chicago' for 'CDT/-5.0/DST' instead in
/home/tm/public_html/walger.eu.paul/libraries/joomla/utilities/date.php on line
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Warning: date() [
function.date]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'America/Chicago' for 'CDT/-5.0/DST' instead in
/home/tm/public_html/walger.eu.paul/libraries/joomla/utilities/date.php on line
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Montag, den 25. Oktober 2010 um 16:12 Uhr |
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. computerworlduk.com
Bei der Wertpapierbörse, wo es auf Mikrosekunden ankommt, hat die London Stock Exchange durch die Migration von Microsoft .Net auf Linux-basierte Technologie ihre Latenz um das Doppelte!! senken können.
Ich frage mich jedoch, wie die überhaupt auf die Idee kammen .NET für Software benutzen, wo die Geschwindigkeit relevant ist?
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Dienstag, den 05. Oktober 2010 um 15:32 Uhr |
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Endlich, ein wichtiger Meilenstein ist erreicht: die Verbreitung des Internet Explorers ist weltweit unter 50% gesunken. In Europa sogar auf 40 %. Das ist gleichbedeutent mit, dass alle anderen Browser in der Mehrheit sind.
Schön wäre es noch wenn IE6 auf 0% sinken würde.
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Samstag, den 02. Oktober 2010 um 07:33 Uhr |
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Was machen die Robotor an der Börse?
Donovan thinks that the odd algorithms are just a way of introducing noise into the works. Other firms have to deal with that noise, but the originating entity can easily filter it out because they know what they did. Perhaps that gives them an advantage of some milliseconds. In the highly competitive and fast HFT world, where even one's physical proximity to a stock exchange matters, market players could be looking for any advantage.
Ein Kampf mit Algorithmen und dem Entschüsseln von Algorithmen findet schwer sichtbar an den Börsen statt. Und die Programmieren, die dies entwickeln, verdienen das im Jahr, was mithilfe von diesen Algorithmen am einem Tag ihr Chef verdient.
"This all happened pre-market when volume is low, but if this kind of burst had come in at a time when we were getting hit hardest, I guarantee it would have caused delays in the [central quotation system]," Donovan said. That, in turn, could have become one of those dominoes that always seem to present themselves whenever there is a catastrophic failure of a complex system.
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