Memory Tracing

Tracing ischemic memory by metabolic pathways: BMIPP and beyond

Myocardial ischemia (MI) resulting in infarction is an important cause of mortality and morbidity worldwide. Acute ischaemia rapidly impairs myocardial contractile function. Myocardial dysfunction persisting for several hours after transient non-lethal ischaemia, eventually resulting in full functional recovery is termed as myocardial stunning. Hibernation is now thought to be...

Tracing Subliminal Memory Traces

Lightweight Memory Tracing

Memory tracing (executing additional code for every memory access of a program) is a powerful technique with many applications, e.g., debugging, taint checking, or tracking dataflow. Current approaches are limited: software-only memory tracing incurs high performance overhead (e.g., for Libdft up to 10x) because every single memory access of the application is checked by additional code that is...

Memory Allocation Tracing with VampirTrace

The paper presents methods for instrumentation and measurement of applications’ memory allocation behavior over time. It provides some background about possible performance problems related to memory allocation as well as to memory allocator libraries. Then, different methods for data acquisition and representation are discussed. Finally, memory allocation tracing integrated in VampirTrace is d...

Optimistic Shared Memory Dependence Tracing

Inter-thread shared memory dependences are crucial to understanding the behavior of concurrent systems, as such dependences are the cornerstone of time-travel debugging and further predictive trace analyses. To enable effective and efficient shared memory dependence tracing, we present an optimistic scheme addressing the challenge of capturing exact dependences between unsynchronized events to ...