International Business Machines Corporation

Yang Che

Zhi Da Luo

Li Jing Mu

Xue Xiang Cui

Zhi Hua Pan

Yu Zhang

Xin Peng Liu

Liang Wang

Xiao Liang Hu

Guoqing Wang

Xi Ning Wang

Xia Tian Zhang

Xuan Zhang

Zhao Liu

Yao Dong Qi

Tan Jiang

Yong Yao

Ke Zhu

Ren Fu Ma

Li-Fang Lee

Ye Xin Wang

Jun Yu Zhang

This disclosure provides a computer-implemented method for monitoring an application at runtime. The method comprises building up a calling relationship graph for at least one type of system method called at runtime, by checking a stack trace generated when the application is running. An application method of the application that directly or indirectly calls this type of system method is represented as a node in the calling relationship graph. The method further comprises determining one or more target nodes in the calling relationship graph by analyzing the structure of the calling relationship graph. The method further comprises inserting callback methods into application method(s) of the application corresponding to the one or more target nodes only in a calling side. The method further comprises monitoring the application at runtime by using said callback methods.

Optimization for application runtime monitoring

In a field of software configuration, a technology of migrating and configuring software rapidly by determining a correspondence between device specific information and a specific configuration file location recording such information. According to one aspect of the present invention, a method for software fast configuration is provided comprising: obtaining and analyzing a software configuration program to identify a method related to the device specific information in the software configuration program; adding an identification to the device specific information obtained by the method related to the specific device information; and determining a correspondence between the device specific information and its record location in a software configuration file based on the added identification. According to the technical solution of the present invention, the correspondence between the record location in the configuration file and the device specific information may be automatically recorded and/or may be used for rapid configuration of software.

Rapid configuration of software

A computer-implemented method for monitoring an object-oriented application is disclosed. A transaction-representative-digraph is built based upon a real-time running of the application, and the digraph contains nodes of a plurality of replaceable classes. A key node is selected based upon invocation relationships between the nodes. A monitor program is instrumented at the selected key node.

Self-monitoring object-oriented applications

The present invention relates to mechanisms for managing VM instances. More specifically, the mechanisms provide at least one VM instance in a resource pool. A configuration requirement is provided with respect to a virtual machine, the configuration requirement describing a first amount of application resources to be installed on the virtual machine. Based on the configuration requirement, a resource tree is built describing a dependency relation between the first amount of application resources. At least one VM instance corresponding to a sub-path of the resource tree is provided in the resource pool, where on each VM instance in the at least one VM instance there are installed application resources included in the sub-path.

Managing a virtual machine instance

The present invention relates to application program logs. In particular, the invention relates to a method and a system in which an original log method of an application program is optimized and newly injected to the application program. According to one aspect of the present invention, there is provided a method for optimizing an application program log record, comprising: identifying an original log method of an application program; separating a character string parameter in the original log method into a constant part and a variable part; establishing a correspondence flag between the constant part and the variable part; constituting an optimized log method by the constant part, the variable part and the correspondence flag; and replacing the original log method with the optimized log method through a code injection. With the above method, the hard disk storage amount of the log record and the IO operation frequency can be reduced.

Program log record optimization

A method and system of deadlock detection in a parallel program, the method comprising: recording lock events during the operation of the parallel program and a first order relation among the lock events; converting information relevant to the operation of the parallel program into gate lock events and recording the gate lock events; establishing a second order relation among the gate lock events and lock events associated with the gate lock events and adding the second order relation to the first order relation; constructing a lock graph corresponding to the operation procedure of the parallel program based on the added first order relation; and performing deadlock detection on the constructed lock graph. The deadlock detection method of the invention can improve the accuracy of deadlock detection without depending on the deadlock detection algorithm per se, and can be applied with facility to various development environments and reduce development costs.

Deadlock detection in a parallel program

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Beijing, China

Yang Che