Troubleshooting the performance of production software is challenging. Most existing tools,
such as profiling, tracing, and logging systems, reveal what events occurred during …

We present a comprehensive survey on parallel I/O in the high-performance computing
(HPC) context. This is an important field for HPC because of the historic gap between …

Fail-slow hardware is an under-studied failure mode. We present a study of 114 reports of
fail-slow hardware incidents, collected from large-scale cluster deployments in 14 …

Infrastructure-as-a-Service (IaaS) clouds are prone to performance anomalies due to their
complex nature. Although previous work has shown the effectiveness of using statistical …

The causes of performance changes in a distributed system often elude even its developers.
This paper develops a new technique for gaining insight into such changes: comparing …

Significant challenges exist for achieving peak or even consistent levels of performance
when using IO systems at scale. They stem from sharing IO system resources across the …

Distributed tracing is a core component of cloud and datacenter systems, and provides
visibility into their end-to-end runtime behavior. To reduce computational and storage …

Design and implementation defects that lead to inefficient computation widely exist in
software. These defects are difficult to avoid and discover. They lead to severe performance …

We highlight one often-overlooked cause of performance failure: limpware--" lim**"
hardware whose performance degrades significantly compared to its specification. We …

We address the problem of “fail-slow” fault, a fault where a hardware or software component
can still function (does not fail-stop) but in much lower performance than expected. To …