Mel Gorman
mgorman
Involved Projects and Packages
MMTests is a configurable test suite that runs a number of common workloads
of interest to developers. It is possible to add monitors for the workload
and it provides reporting tools for comparing different test runs.
trace-cmd reporting can be extremely verbose making it difficult to analyse. kernelshark visualises the data so that it can be filtered or trimmed.
Ftrace is the Linux kernel internal tracer that is named after the function tracer but also includes a number of other capabilities. It can be configured through the debugfs interface but that is very unwieldly. trace-cmd is a command-line utility to ease the use of Ftrace.
numad is a userspace daemon that monitors NUMA usage and resource usage and attempts to configure workloads using cpusets to use a subset of CPUs and memory nodes to maximise the number local memory access for best performance. Alternatively, it can be used to give hints as to how workloads should be manually bound to CPUs and memory nodes. This daemon is primarily intended for scenarios where there are multiple processes each which fit within a NUMA node. Examples of such configurations are virtual machine instances where each VM is smaller than a NUMA node or running multiple JVMs where each instance fits within a NUMA node. If the workload is one process that spans two or more nodes such as a large database server or a single JVM instance then numad is likely to regress performance.
MMTests is a configurable test framework that runs a number of common
workloads of interest to MM developers.