Christopher Hayward Hull

US Patent:

20110296012, Dec 1, 2011

Filed:

May 26, 2011

Appl. No.:

13/117105

Inventors:

Patrick J. Malloy - Washington DC, US
Marius Popa - Rockville MD, US
Antoine Dunn - Kensington MD, US
Daniel Fuentes - Rockville MD, US
Christopher Hull - Bethesda MD, US

International Classification:

G06F 15/173

US Classification:

709224

Abstract:

A system and method determines correlations within multi-tier communications based on repeated iterations/episodes of executions of a target application. Content-based correlations are determined by encoding the content using a finite alphabet, then searching for similar sequences among the multiple traces. By encoding the content to a finite alphabet, common pattern matching techniques may be used, including, for example, DNA alignment algorithms. To facilitate alignment of the traces, structural and/or semantic breakpoints are defined, and the encoding in each trace is synchronized to these breakpoints. To facilitate efficient processing, a hierarchy of causality among tier-pairs is identified, and messages at lower levels are ranked and temporally filtered, based on activity intervals at higher levels of the hierarchy.

US Patent:

20140280929, Sep 18, 2014

Filed:

Jun 3, 2014

Appl. No.:

14/294773

Inventors:

- San Francisco CA, US
Marius Popa - Rockville MD, US
Antoine Dunn - Kensington MD, US
Daniel Fuentes - Rockville CA, US
Christopher Hull - Bethesda MD, US

Assignee:

Riverbed Technology, Inc. - San Francisco CA

International Classification:

H04L 12/26

US Classification:

709224

Abstract:

A system and method determines correlations within multi-tier communications based on repeated iterations/episodes of executions of a target application. Content-based correlations are determined by encoding the content using a finite alphabet, then searching for similar sequences among the multiple traces. By encoding the content to a finite alphabet, common pattern matching techniques may be used, including, for example, DNA alignment algorithms. To facilitate alignment of the traces, structural and/or semantic breakpoints are defined, and the encoding in each trace is synchronized to these breakpoints. To facilitate efficient processing, a hierarchy of causality among tier-pairs is identified, and messages at lower levels are ranked and temporally filtered, based on activity intervals at higher levels of the hierarchy.