Searching for the performance bottleneck in an execution trace is an error prone and time consuming activity. Existing tools offer some comfort by providing a visual representation of trace for analysis. In this paper we present the Stethoscope, an interactive visual tool to inspect and analyze columnar database query performance, both online and offline. It’s unique interactive animated interf...

The modern acoustic stethoscope is a useful clinical tool used to detect subtle, pathological changes in cardiac, pulmonary and vascular sounds. Currently, brand-name stethoscopes are expensive despite limited innovations in design or fabrication in recent decades. Consequently, the high cost of high quality, brand name models serves as a barrier to clinicians practicing in various settings, es...

The word stethoscope is derived from the two Greek words, stethos (chest) and scopos (examination). Since mankind first began to study human physiology and the physical characteristics associated with various ailments, it has been obvious that the heart plays a crucial role in our bodies. The sounds the heart and surrounding organs, such as the lungs, make can be crucial indicators when examini...