Tiered memory, combining multiple memory components with different performance and
capacity, provides a cost-effective solution to increase memory capacity and improve …

Inefficiencies abound in complex, layered software. A variety of inefficiencies show up as
wasteful memory operations. Many existing tools instrument every load and store instruction …

Performance bugs are unnecessarily inefficient code chunks in software codebases that
cause prolonged execution times and degraded computational resource utilization. For …

Inter-thread communication is a vital performance indicator in shared-memory systems. Prior
works on identifying inter-thread communication employed hardware simulators or binary …

The memory allocator plays a key role in the performance of applications, but none of the
existing profilers can pinpoint performance slowdowns caused by a memory allocator …

This paper proposes TaskProf2, a parallelism profiler and an adviser for task parallel
programs. As a parallelism profiler, TaskProf2 pinpoints regions with serialization …

Precise event sampling is a profiling feature in commodity processors that can sample
hardware events and accurately locate the instructions that trigger the events. This feature …

Writing efficient multithreaded code that can leverage the full parallelism of underlying
hardware is difficult. A key impediment is insidious cache contention issues, such as false …

Simulating the transfer of mass between particles is not straightforwardly parallelized
because it involves the calculation of the influence of many particles on each other. Engdahl …

Execution variance among different invocation instances of the same procedure is often an
indicator of performance losses. On the one hand, instrumentation-based tools can insert …