International Business Machines Corporation

Quest Software Inc.

John R MacMillan

Trong Truong

Ettore Tiotto

Yingcong Guan

Michael S Fulton

Eugene W Chan

Yaoqing Gao

Jeremiah S Swan

Kobimanalan Vinayagamoorthy

Systems and methods for using a synchronization mechanism to dynamically update instrumentation during program execution are described herein. Using the synchronization mechanism, a decision tree structure of instruments can be avoided, saving processing resources. The synchronization mechanism can be a field or the like that is declared using a synchronization primitive. For example, the synchronization primitive can be a volatile or synchronized keyword in some programming languages. The field can refer to a currently-selected instrument implementation, thereby avoiding using a decision-tree structure to find a desired instrument implementation.

Instrumentation of program code for dynamic analysis

Aspects of the present invention include a method which includes a processor providing a debug extension library; providing a common debug interface and at least two common debug interface implementations, a first one of the common debug interface implementations being dedicated to a native debugger of an interpreted language computer program, a second one of the common debug interface implementations being dedicated to a native debugger of a compiled language computer program, wherein an application contains a first portion written in an interpreted programming language and a second portion written in a compiled programming language; and responding to a user command provided through a debug script program to debug the application by commanding one of the native debugger of an interpreted language computer program or the native debugger of a compiled language computer program through the corresponding dedicated common debug interface implementation.

Common debug scripting framework for driving hybrid applications consisting of compiled languages and interpreted languages

In an approach to problem determination for cooperating web services, a computing device executes a debug script. The computing device discovers one or more web services based on a web service discovery mechanism. The computing device connects, by the debug daemon, with a debug probe to set a breakpoint on a web service. The computing device receives a file containing connection parameters. The computing device initiates a debug session with the web service using a designated connection channel. The computing device invokes a breakpoint handler function for the web service. The computing device sends commands to the debug probe, which forwards the debug commands to the web service. The computing device closes the debug session with the web service when the breakpoint handler function has run to completion.

Automated problem determination for cooperating web services using debugging technology

A computer-implemented method, computer program product, and system is provided for determining test case efficiency. In an implementation, a method may include determining each code unit executed by a test case in a test suite including a plurality of test cases, wherein a product-under-test includes a plurality of code units. The method may also include determining an execution time for the test case. The method may further include calculating an efficiency rating of the test case based upon, at least in part, a number of code units executed by the test case and the execution time for the test case.

Determining test case efficiency

A source code is pre-processed to form a pre-processed source code. The source code refers to an external code in a separate file, and the pre-processed source code creates a single file that includes the source code and the external code. The source code is profiled to create profile information identifying a hot portion having a first degree of hotness. A set of environment parameter values is determined to be applicable to a data processing system where the application will execute. At a remote optimizing compiler, a selection of a set of compiler options from a knowledgebase corresponding to the profile information and the set of environment parameter values is caused and an object code resulting from compiling the pre-processed source code using the set of compiler options is obtained. The object code is optimized according to the profile information and the set of environment parameter values.

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John R MacMillan