Christopher S Metcalf

US Patent:

7725882, May 25, 2010

Filed:

Sep 30, 2005

Appl. No.:

11/240232

Inventors:

Michael P. Spertus - Chicago IL, US
Christopher D. Metcalf - Wellesley MA, US
Gadi Wolfman - Herzliya, IL

Assignee:

Symantec Operating Corporation - Mountain View CA

International Classification:

G06F 9/44

US Classification:

717130

Abstract:

A system and method for managing the environment of software processes in a computer system. A computer system comprises a processor and at least one process environment comprising one or more environment variables. The processor executes one or more processes, intercepts the launch of a process, sets at least one environment variable to a first value, and continues the launch of the process. Setting the environment variable may enable a profiler process. The processor may set at least one environment variable for the process to a value which is chosen irrespective of a value of the environment variable of a parent process of the process. Further, the processor may set at least one environment variable for the process to a default value if a data repository does not contain an entry that has an identification which corresponds to the process.

US Patent:

7739689, Jun 15, 2010

Filed:

Feb 27, 2004

Appl. No.:

10/789902

Inventors:

Michael P. Spertus - Chicago IL, US
Christopher D. Metcalf - Wellesley MA, US
Richard Schooler - Cambridge MA, US
David A. Stuckmann - Cary IL, US

Assignee:

Symantec Operating Corporation - Mountain View CA

International Classification:

G06F 3/00
G06F 9/44
G06F 9/46
G06F 13/00

US Classification:

719317, 717130

Abstract:

Methods and systems are provided for internal monitoring of applications. A distributed management framework may comprise a plurality of applications and application servers, wherein each of the applications is configured to make function calls to standard programming functions. The function calls to the standard programming functions are intercepted. The function calls are routed to alternative implementations of the standard programming functions, and the alternative implementations are used to collect availability metrics for the plurality of applications. Manager threads may be used for internal monitoring of application execution. Applications may be modified with additional instructions to monitor program execution and automatically generate output comprising an execution history.

US Patent:

7805717, Sep 28, 2010

Filed:

Oct 17, 2005

Appl. No.:

11/252343

Inventors:

Michael P. Spertus - Chicago IL, US
Christopher D. Metcalf - Wellesley MA, US
Gadi Wolfman - Hetzliya, IL

Assignee:

Symantec Operating Corporation - Mountain View CA

International Classification:

G06F 9/45
G06F 9/44

US Classification:

717158, 717130, 717152

Abstract:

A system and method for instrumenting program instructions. A processing system includes a compiler and a profiler. The compiler is configured to notify the profiler of a compilation event corresponding to first program instructions. In response to detecting the event, the profiler is configured to intercept compilation of the first program instructions, determine whether an instrumented version of the first program instructions is currently available, instruct the compiler to compile the instrumented version of the first program instructions if available, and retrieve and instrument the first program instructions if not available. The profiler may maintain an instrumentation cache for storing instrumented versions of program instructions. The instrumentation cache may further include metadata which identifies portions of program code which have been instrumented and their location. The profiler may generally instrument program instructions once during the resident life of a corresponding application.

US Patent:

7827154, Nov 2, 2010

Filed:

Oct 5, 2004

Appl. No.:

10/958746

Inventors:

Michael P. Spertus - Chicago IL, US
David A. Stuckmann - Cary IL, US
Richard Schooler - Seattle WA, US
Christopher D. Metcalf - Wellesley MA, US

Assignee:

Symantec Operating Corporation - Mountain View CA

International Classification:

G06F 7/00

US Classification:

707689

Abstract:

A method and mechanism for diagnosing application failures. An executable application is augmented with code which generates a list of components, as well as version information, utilized by the application. Also created is data which associates application components with applications which utilize those components. The list of components, version information, and association data are stored in a database and updated each time the application is run. In response to detecting a failure of the application, a database query is generated which returns a list of components utilized by the failed application. By comparing the date that application components changed to the date the application was last successfully run, a high priority list of components which changed since the last successful run may be generated. Diagnosis of the application failure may then begin with components in the high priority list.