Abstract: A tool for analyzing software is enhanced to provide multiple views of a stack trace, with each view having a different level of detail. Different views may be lightly simplified, moderately simplified, or heavily simplified. The display of a complete stack trace includes entries for all stack frames in the stack trace. The display of a simplified stack trace includes entries for fewer than all stack frames in the stack trace, thereby “hiding” or “collapsing” entries for some of the stack frames, relative to the complete stack trace display. After a user specifies a level of complexity with which to show a stack trace, the enhanced analysis tool GUI updates the stack trace display according to the specified level. A complexity level is associated with a set of heuristics that is used to create a view of a stack trace at that complexity level.

Abstract: Displaying instrument output is disclosed. Instrument output data is received. A difference between two or more corresponding portions of data included in the received instrument output data is determined. At least a selected part of the received instrument output data is displayed in a manner that highlights the difference.

Abstract: Displaying instrument output is disclosed. Instrument output data is received. A difference between two or more corresponding portions of data included in the received instrument output data is determined. At least a selected part of the received instrument output data is displayed in a manner that highlights the difference.

Abstract: Displaying instrument output is disclosed. Instrument output data is received. A difference between two or more corresponding portions of data included in the received instrument output data is determined. At least a selected part of the received instrument output data is displayed in a manner that highlights the difference.

Abstract: Facilitating analysis is disclosed. A master track comprising one or more previously recorded inputs to one or more computer system components is played. Two or more sets of instrument output are received, each set generated during at least a corresponding portion of the playback of the master track. At least a selected portion of the instrument output is displayed in a manner that allows visual correlation of the displayed instrument output.

Abstract: Detecting an anomaly is disclosed. An indication that a computer system monitoring instrument is desired to provide as output a subset of the output data that it would produce if it were to remain on throughout a relevant period with no limit being placed on its output at any point during the relevant period is received. The instrument is configured to provide as output only the desired subset.

Abstract: A tool for analyzing software is enhanced to provide multiple views of a stack trace, with each view having a different level of detail. Different views may be lightly simplified, moderately simplified, or heavily simplified. The display of a complete stack trace includes entries for all stack frames in the stack trace. The display of a simplified stack trace includes entries for fewer than all stack frames in the stack trace, thereby “hiding” or “collapsing” entries for some of the stack frames, relative to the complete stack trace display. After a user specifies a level of complexity with which to show a stack trace, the enhanced analysis tool GUI updates the stack trace display according to the specified level. A complexity level is associated with a set of heuristics that is used to create a view of a stack trace at that complexity level.

Abstract: Detecting an anomaly is disclosed. An indication that a computer system monitoring instrument is desired to provide as output a subset of the output data that it would produce if it were to remain on throughout a relevant period with no limit being placed on its output at any point during the relevant period is received. The instrument is configured to provide as output only the desired subset.

Abstract: Facilitating analysis is disclosed. A master track comprising one or more previously recorded inputs to one or more computer system components is played. Two or more sets of instrument output are received, each set generated during at least a corresponding portion of the playback of the master track. At least a selected portion of the instrument output is displayed in a manner that allows visual correlation of the displayed instrument output.

Abstract: Displaying instrument output is disclosed. Instrument output data is received. A difference between two or more corresponding portions of data included in the received instrument output data is determined. At least a selected part of the received instrument output data is displayed in a manner that highlights the difference.