Free Software Patents: Alan Cox
1. A method, comprising: storing, by one or more processors, confidential data in a confidential section of virtual memory, wherein storing the confidential data in the confidential section of virtual...
View ArticleBig Data and politics
For the general public, there was no way to know that the idea for the Parker contest had come from a data-mining discovery about some supporters: affection for contests, small dinners and celebrity....
View ArticleObama’s big data team
Those applications used a huge chunk of Amazon’s Eastern data center. “We had thousands of nodes,” said VanDenPlas. “We pushed 180TB of traffic with billions and billions of requests. We had 60% of all...
View ArticleWhat are patents for
Mr. R.J. Hall designed a new product known as a “Towel Tote” that is basically an absorbent scarf with pockets on the ends. [See one here]. After filing his design patent application, Hall e-mailed...
View ArticlePatent Reform modest proposal.
Companies over a certain size should be required to show that they have evaluated a patent claim from a small entity in good faith. That is, if they get a claim that they are infringing, they should be...
View ArticleChallenges deploying PTPv2 in a Global Financial company
Interesting article – most of these problems and more were solved in TimeKeeper years ago. But the most interesting part is the enormous engineering effort required to kind of get PTP to work.
View ArticleThe business case for being time protocol agnostic.
Time Synchronization and Distribution is a business critical issue but it is easy to become bogged down in arcane technology/marketing controversies. One of those controversies is over the choice...
View ArticleTime Synchronization in the Cloud
Synchronizing clocks in the cloud, especially for virtual machines, is way beyond the capabilities of ordinary synchronization methods. Tests show that virtual machines in the cloud relying on NTPd can...
View ArticleEfficient Optimistic Concurrency Control Using Loosely Synchronized Clocks
Efficient Optimistic Concurrency Control Using Loosely Synchronized Clocks This paper describes an efficient optimistic concurrency control scheme for use in distributed database systems in which...
View ArticleData integrity depends on time synchronization
In a distributed compute system, such as any multi-device transaction system or database, time synchronization is essential to data integrity. The simplest case is a multi-step transaction over...
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Time maps for visualizing time distribution networks
Without this information, a time distribution network is a black box. TimeKeeper looks at all the sources of time, in any protocol, that it can see around it, and tracks each source back to its...
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Time Maps in Action
This shows a time map for a client (center) that is getting NTP time from a variety of standard internet NTP servers and via a customer site (to the left). A TimeKeeper Pocket GrandMaster (bottom left)...
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Challenges upgrading time synchronization in a global financial company
The real-world challenges of trying to upgrade time-synchronization without TimeKeeper are described in an excellent 2012 technical paper about a project at the company IMC Global Finance [IMC]. The...
View ArticleData tiedowns with reliable time stamping
Management teams are growing more reliant on the ability to immediately access and quickly sort through massive amounts of data to find the information they need - Data Governance for Financial...
View ArticleNTPd DOS attacks
Miscreants who earlier this week took down servers for League of Legends, EA.com, and other online game services used a never-before-seen technique that vastly amplified the amount of junk traffic...
View ArticleCassandra Cluster Synchronization
Cassandra is a highly-distributable NoSQL database with tunable consistency. What makes it highly distributable makes it also, in part, vulnerable: the whole deployment must run on synchronized clocks....
View ArticleManaged services (and cloud) for financial industry
The nature of data security is constantly changing for the financial industry. With the ever-growing need for tighter IT infrastructure security and the increasing prevalence of BYOD-friendly...
View ArticleAt issue in Apple versus Samsung patent fight
A system and method causes a computer to detect and perform actions on structures identified in computer data. The system provides an analyzer server, an application program interface, a user interface...
View ArticleMeasuring Clock Synchronization in the Cloud- NTPd versus TimeKeeper
Measured on Amazon EC2. Standard deviation from reference time over 20 hours TimeKeeper: 23 microseconds NTPd: 6000 microseconds (6 milliseconds)
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