Invention Grant
- Patent Title: Hardware method for detecting timeout conditions in a large number of data connections
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Application No.: US13247364Application Date: 2011-09-28
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Publication No.: US08495251B2Publication Date: 2013-07-23
- Inventor: Jeffrey T. McLamb
- Applicant: Jeffrey T. McLamb
- Applicant Address: US MA Hopkinton
- Assignee: EMC Corporation
- Current Assignee: EMC Corporation
- Current Assignee Address: US MA Hopkinton
- Agency: Hamilton, Brook, Smith & Reynolds, P.C.
- Main IPC: G06F15/16
- IPC: G06F15/16

Abstract:
Tracking several open data connections is difficult with a large number of connections. Checking for timeouts in software uses valuable processor resources. Employing a co-processor dedicated to checking timeouts uses valuable logic resources and consumes extra space. In one embodiment, a finite state machine implemented in hardware increases the speed connections can be checked for timeouts. The finite state machine stores a last accessed time stamp for each connection in a memory, and loops through the memory to compare each last accessed time stamp with a current time stamp of the system minus a global timeout value. In this manner, the finite state machine can efficiently find and react to timed out connections.
Public/Granted literature
- US20130080710A1 HARDWARE METHOD FOR DETECTING TIMEOUT CONDITIONS IN A LARGE NUMBER OF DATA CONNECTIONS Public/Granted day:2013-03-28
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