Novaordis-linux

Internal

• Projects
• Per-Process CPU Runtime Statistics

Overview

Linux monitoring and management functionality:

• /proc/stat parsing.
• a collector that can read arbitrary files at high rate and cache them in memory - useful for sampling individual processes:

A CPU statistics collector (/proc/stat, proc/<pid>/stat) that periodically reads
O/S level statistics for the entire system and for a process specified via a
regular expression, and displays those statistics at stdout or writes them in a
file. To stop the collection, Ctrl-C.

Usage:

   java -jar collector.jar [--output-file=/tmp/cpu.csv] [--process-regex='<regex>'] [--sampling-interval-ms=10]

Example:

    java -jar collector.jar --process-regex=' -server ' --sampling-interval-ms=50

GitHub

https://github.com/NovaOrdis/novaordis-linux

Maven

<dependency>
    <groupId>io.novaordis.linux</groupId>
    <artifactId>novaordis-linux</artifactId>
    <version>${novaordis.linux.version}</version>
</dependency>