OpieUserManual/SystemInfo

= System Info =

The Opie System Info application is a powerful application for getting information on your handheld device. Each of the status pages is updated approximately every two seconds.

Memory
The Memory tab gives a live display of memory (RAM) usage.

Storage
The Storage tab gives a live display of space used/available on permanent storage devices (eg. CompactFlash card, internal Flash, hard drive etc.).

CPU
The CPU tab shows a graph indicating processor usage, as well as a description of the CPU type.

Process
The Process tab lists all currently running processes, showing their PID (process ID), command, status, and accumulated processor time used.

Status types are as follows (from "ps" manual page):

The Process tab also allows you to send signals to processes. The most useful signals are as follows:

To send a signal to a process, tap on the process in the list to select it, choose a signal from the drop-down list, and press the Send button. Note that sending the wrong signal to the wrong process could cause your system to act strangely, freeze or crash, so use this function with care.

Module
The module tab shows a list of all currently loaded kernel modules (for the uninitiated, kernel modules in Linux are generally drivers for hardware devices). The This is mostly for troubleshooting purposes.

You can also remove modules from this tab, by selecting a process, choosing either "modprobe -r" or "rmmod" and pressing Send. You should only do this if you know what you're doing.

Benchmark
The Benchmark tab allows you to run a series of speed tests on your handheld device to measure its performance. These tests are as follows:


 * Integer Arithmetic
 * Floating Point Unit
 * Text Rendering
 * Graphics Performance
 * RAM Performance
 * SD Card Performance
 * CF Card Performance

To test one or more items, tick the items you wish to test and press the button at the bottom of the page. The testing may take some time (up to 5 minutes), please be patient and allow the tests to complete. If you have selected the Text or Graphics tests you will notice things being drawn at random on the screen - these are part of the tests.

System
The last tab shows summary information on the operating system, kernel and device.