Si is the amount of memory swapped in from disk (per second). The next two columns give information about swap: Swpd is the amount of used virtual memory.īuff is the amount of memory used as buffers.Ĭache is the amount of memory used as cache. The next four columns give information about memory: These are processes that are idle and waiting to run.ī is the number of processes that were in sleep mode, and were interrupted since the last update. R is the number of processes that are in a wait state. The first two columns give information about processes: The output is broken into six sections: procs, memory, swap, io, system, and cpu. Run the vmstat command without any options. Watch the video below for an overview on vmstat. You might consider maximizing your viewing area by using the Hide steps and the “ Full screen” controls located in the task bar, as shown in the images. You can observe page-ins and page-outs as they occur on the system. Vmstat shows how much virtual memory there is and how much is free. Note: When using the free lab environment, see Oracle Linux Lab Basics for connection and other usage instructions.

Examine command output from vmstat, mpstat, and topĪ client system with Oracle Linux 8 or later installed.

Oracle Linux provides tools for monitoring and analyzing system resource usage, as well as tracing tools for diagnosing performance issues in multiple processes and related threads. Monitoring the usage of system resourses is useful for detecting issues which can adversely affect system performance. In this tutorial you work with the Oracle Linux vmstat, mpstat, and top to monitor system resource usage. Monitor system resources on Oracle Linux Introduction

When completing your lab, substitute these values with ones specific to your cloud environment. It uses example values for Oracle Cloud Infrastructure credentials, tenancy, and compartments.This tutorial is available in an Oracle-provided free lab environment.

Ubuntu check resource usage