high performance trading - 35 practical strategies and techniques - ward 2009

... and out of, and picked up and xiv High Performance Trading This is a user manual of practical and useful approaches, strategies and techniques that you can implement right away. “ ” read as and ... separates the level of achievement  High Performance Trading 35 Practical Strategies and Techniques to Enhance Your Trading Psychology and Performance...

Ngày tải lên: 03/05/2014, 13:02

... with 1-1 0 bulk UDT flows, over 1Gb/s link between Chicago and Amsterdam Experiences in Design and Implementation of a High Performance Transport Protocol Yunhong Gu, Xinwei Hong, and Robert ... 1000ms Fairness and Friendliness 50 TCP flows and 4 UDT flows between SARA and StarLight Realtime snapshot of the throughput The 4 UDT flows have similar performance an...

Ngày tải lên: 15/01/2014, 15:59

... databases and related areas, it will serve as an indispensable and up-to-date reference. Prac- titioners contemplating building high- performance databases or seeking to gain a good understanding ... supporting high performance for large databases, and many of them have incorporated parallelism and grid features into their products. Their commitment to high- performance syst...

Ngày tải lên: 21/01/2014, 18:20

... knowing the location of the resource. And a pay-as-you-go strategy can be applied in computing, similar to the state-of-the-art gas and electricity distribution strategies. Data storages have reached ... non-attribute-based data partitioning. Attribute-based data partitioning uses hash and range data partitioning methods, whereas non-attribute-based data partitioning uses random-equal...

Ngày tải lên: 21/01/2014, 18:20

... queries in high- performance parallel database systems have also been studied. These algo- rithms are the traditional method covering merge all and hierarchical merging, the two-phase method, and the ... components: local merge-sort costs and pipeline merging costs. The local sort operation in parallel redistribution binary-merge sort is similar to parallel merge-all sort and paral...

Ngày tải lên: 21/01/2014, 18:20

... group-by and join opera- tions are described. First, in Section 6.1, an introduction to GroupBy-Join query is given. Sections 6.2 and 6.3 describe parallel algorithms for GroupBy-Before-Join queries, ... in which the group-by operation is executed before the join, and paral- lel algorithms on GroupBy-After-Join queries, in which the join is executed first, followed by the group-by operat...

Ngày tải lên: 21/01/2014, 18:20

... best performance. An algorithm for parallel multi-index search query processing using a one-index method is presented in Figure 7.20. Algorithm: Parallel-Multi-Index-Selection- One-Index- Access-Version (Query Q and ... Parallel-Two-Index-Join-Category-1 (indexes R & S ) // In each processor : 1. Let starting and ending values of the range partitioning used are startval and endval...

Ngày tải lên: 21/01/2014, 18:20

... [10 0-1 99][ 0-1 99] [ 0-9 9] Bucket 13 [ 0-9 9] [20 0-2 99][ 0-2 99] [ 0-9 9] Bucket 21 [ 0-1 99] [ 0-9 9][ 0-9 9] [10 0-1 99] Bucket 22 [ 0-1 99] [10 0-1 99][ 0-1 99] [10 0-1 99] Bucket 23 [ 0-1 99] [20 0-2 99][ 0-2 99] [10 0-1 99] Bucket ... 2 [ 0-1 99] [ 0-2 99] [ 0-1 99] [10 0-1 99] Bucket 3 [ 0-2 99] [ 0-2 99] [ 0-2 99] [20 0-2 99] F...

Ngày tải lên: 21/01/2014, 18:20

... maintains the before-image and after-image of all write transactions. Recovery algorithms are based on two main types of updating: in-place updating and out-of-place updating. In-place updating directly ... On the other hand, out-of-place updating maintains the new value separately. Write-ahead logging is used to store the before- and after-image of the data item in the log. The before-...

Ngày tải lên: 21/01/2014, 18:20

... Grid-ACP Figure 12.1 shows the state diagram of the proposed grid-atomic commitment pro- tocol (Grid-ACP). A pre-abort state is introduced in the originator, and two new states, the sleep and ... the Grid-atomic commit protocol (Grid-ACP) and proves the correctness of the protocol. The Grid-ACP is extended to handle site failures in Section 12.3, including the comparison of the Grid-ACP...

Ngày tải lên: 21/01/2014, 18:20