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Mechanical SympathyHardware and software working together in harmony
http://mechanical-sympathy.blogspot.com/
Hardware and software working together in harmony
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Mechanical Sympathy | mechanical-sympathy.blogspot.com Reviews
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Hardware and software working together in harmony
mechanical-sympathy.blogspot.com
Mechanical Sympathy: May 2014
https://mechanical-sympathy.blogspot.com/2014_05_01_archive.html
Hardware and software working together in harmony. Monday, 5 May 2014. Financial systems communicate by sending and receiving vast numbers of messages in many different formats. When people use terms like "vast" I normally think, "really.how many? So lets quantify "vast" for the finance industry. Market data feeds from financial exchanges typically can be emitting tens or hundreds of thousands of message per second, and aggregate feeds like OPRA. Last year the CME, who are a member the FIX community.
Mechanical Sympathy: Single Writer Principle
https://mechanical-sympathy.blogspot.com/2011/09/single-writer-principle.html
Hardware and software working together in harmony. Thursday, 22 September 2011. When trying to build a highly scalable system the single biggest limitation on scalability is having multiple writers contend for any item of data or resource. Sure, algorithms can be bad, but let’s assume they have a reasonable Big O notation. So we'll focus on the scalability limitations of the systems design. In advance of performing the mutation must queue, and this queuing effect ( Little's Law. For highly contended data...
Mechanical Sympathy: Native C/C++ Like Performance For Java Object Serialisation
https://mechanical-sympathy.blogspot.com/2012/07/native-cc-like-performance-for-java.html
Hardware and software working together in harmony. Thursday, 5 July 2012. Native C/C Like Performance For Java Object Serialisation. Do you ever wish you could turn a Java object into a stream of bytes as fast as it can be done in a native language like C? If you use standard Java Serialization you could be disappointed with the performance. Java Serialization was designed for a very different purpose than serialising objects as quickly and compactly as possible. The three approaches to be compared are:.
Mechanical Sympathy: July 2013
https://mechanical-sympathy.blogspot.com/2013_07_01_archive.html
Hardware and software working together in harmony. Tuesday, 16 July 2013. Java Garbage Collection Distilled. Serial, Parallel, Concurrent, CMS, G1, Young Gen, New Gen, Old Gen, Perm Gen, Eden, Tenured, Survivor Spaces, Safepoints, and the hundreds of JVM startup flags. Does this all baffle you when trying to tune the garbage collector while trying to get the required throughput and latency from your Java application? Wise folk keep telling us, “You do not get something for nothing”. The time taken by sys...
Mechanical Sympathy: Simple Binary Encoding
https://mechanical-sympathy.blogspot.com/2014/05/simple-binary-encoding.html
Hardware and software working together in harmony. Monday, 5 May 2014. Financial systems communicate by sending and receiving vast numbers of messages in many different formats. When people use terms like "vast" I normally think, "really.how many? So lets quantify "vast" for the finance industry. Market data feeds from financial exchanges typically can be emitting tens or hundreds of thousands of message per second, and aggregate feeds like OPRA. Last year the CME, who are a member the FIX community.
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Global Electronic Trading: Vendor relationship management
http://blog.alignment-systems.com/2015/08/vendor-relationship-management.html
Front office technology, FIX, MIFID2 and global electronic trading. Technology for fixed income, equities, f/x, futures and options. Buy-side, sell-side, hedge funds, exchanges and execution venues. . Fixed Income Trading: New venues. A simple question came up recently in a conversation – how many new Fixed Income trading venues are there? 160; I could not think of anywhere th. Monday, 3 August 2015. A look at the world of vendor relationship management. In many cases the decision of. Who raises breaches...
LMAX Technology: Weekly Events Update - Tuesday 26th July
http://lmaxtrader.blogspot.com/2011/07/weekly-events-update-tuesday-26th-july.html
Tuesday, 26 July 2011. Weekly Events Update - Tuesday 26th July. Apologies for the late post, unfortunately sometimes actual development gets in the way. Was nominated for the 2011 Java Innovation Awards. We made a change to the application which means that FX trading is now only shut down for 5 minutes after 10pm, instead of 30 minutes. A team of LMAX cyclists completed the London to Cambridge Bike Ride, raising money for Breakthrough Breast Cancer. And no-one (from our team) died. 13th - 14th October.
Devoxx 2012 trip report | Ideas Not For Sale
https://vyazelenko.com/2013/03/26/devoxx-2012-trip-report
Ideas Not For Sale. Nothing is more dangerous than an idea when it is the only one you have. (Emile Chartier). Devoxx 2012 trip report. Here it was another amazing Devoxx conference. Tons of new stuff to learn and a lot of new and familiar faces to discover. As already became a tradition each year of Devoxx brings some innovation and this year wasn’t exceptional. The big theme of this year was NFC. That had and NFC reader and was sending HTTP POST to a server running and a Raspberry Pi device. Which was ...
NFC | Ideas Not For Sale
https://vyazelenko.com/tag/nfc
Ideas Not For Sale. Nothing is more dangerous than an idea when it is the only one you have. (Emile Chartier). Devoxx 2012 trip report. Here it was another amazing Devoxx conference. Tons of new stuff to learn and a lot of new and familiar faces to discover. As already became a tradition each year of Devoxx brings some innovation and this year wasn’t exceptional. The big theme of this year was NFC. That had and NFC reader and was sending HTTP POST to a server running and a Raspberry Pi device. Which was ...
Java | Ideas Not For Sale
https://vyazelenko.com/tag/java
Ideas Not For Sale. Nothing is more dangerous than an idea when it is the only one you have. (Emile Chartier). Why clone is faster than constructor copy. This post is a followup on my previous post. About copying objects in Java. After I published that post I got a question from Sven Reimers (@SvenNB) why there is a big performance different between clone and copying via constructor. In this post I will try to answer this question. Just to recap what we are looking at. There are 2 classes implementing.
About | Sneaking suspicion
https://mrtnrbrts.wordpress.com/about
Get Elastic Ecommerce Blog. A belief based on very little evidence. My name is Martyn Roberts, I started this blog primarily an aide-mémoire, but also for the joy of writing and my contribution to the blogosphere. The title refers to the fact that I have not scientifically verified my opinions – they are just that – opinions. Blog at WordPress.com. A belief based on very little evidence. Get Elastic Ecommerce Blog. A belief based on very little evidence. A belief based on very little evidence.
Getting Cirrius: Calculating Similarity (Part 1): Cosine Similarity
http://www.gettingcirrius.com/2010/12/calculating-similarity-part-1-cosine.html
Meandering thoughts about technology and management. Sunday, December 5, 2010. Calculating Similarity (Part 1): Cosine Similarity. Dot Product, 2010). Cosine similarity is literally the angular difference between two vectors. Cosine Similarity is expressed by the formula:. Cosine Similarity, 2010). For those of you allergic that don't speak "mad mathematician" (like me), to calculate the cosine similarity, we need to:. Take the dot product of vectors A and B. Calculate the magnitude of Vector A. In the c...
JNK Java: JCrete 2013
http://jnkjava.blogspot.com/2013/06/jcrete-2013.html
My blog about Java. Παρασκευή, 21 Ιουνίου 2013. Open conference will take place from 19-22 August and there are still a few empty seats. So don't wait. Book now. This is the only conference where you can:. Meet Java Champions and geeks that share the same interests as you. Learn about the latest technologies in the field. Get hands-on experience directly from the experts by the swimming pool. Participate in the organisation of the event ( Open Spaces conference or unconference. Maurice Naftalin ( λ.
JNK Java: Ιουνίου 2013
http://jnkjava.blogspot.com/2013_06_01_archive.html
My blog about Java. Παρασκευή, 21 Ιουνίου 2013. A few things about software design. While there are a number of frameworks for web development (JEE, Spring etc.) that provide Off-The-Shelf design guidelines to help developers structuring their code, standalone (desktop) applications lack one. It is unfortunate to see even very good developers having difficulties in designing their code and creating spaghetti code. Sub-package and inside there create the domain objects as Plain Old Java Objects (POJOs).
database-administration | ivanglima.com
http://ivanglima.com/category/database-administration
Data, Science, Economics and Technology. Skip to primary content. Skip to secondary content. Material da palestra: Mineração de Dados com SQL Server 2014 Analysis Services e além. February 24, 2015. Conforme prometido, seguem os slides da palestra que realizei ontem no Codificando Night Week. Disponíveis no link: http:/ bit.ly/1A2RyOR. Confira também as sessões do Diego Nogare. Pois foram muito legais! A gravação das palestras também está disponível, no Youtube:. Veja a agenda de palestras aqui. Pretendo...
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mechanical-sympathy.blogspot.com
Mechanical Sympathy
Hardware and software working together in harmony. Monday, 5 May 2014. Financial systems communicate by sending and receiving vast numbers of messages in many different formats. When people use terms like "vast" I normally think, "really.how many? So lets quantify "vast" for the finance industry. Market data feeds from financial exchanges typically can be emitting tens or hundreds of thousands of message per second, and aggregate feeds like OPRA. Last year the CME, who are a member the FIX community.
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