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>The Preferences Dialogue</TITLE
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><DIV
CLASS="SECT1"
><H1
CLASS="SECT1"
><A
NAME="PREFERENCES"
>The Preferences Dialogue</A
></H1
><DIV
CLASS="FIGURE"
><P
><IMG
SRC="./figs/gtop-prefs.png"></P
><P
><B
>Figure 7. The preferences dialogue of gtop</B
></P
></DIV
><P
>       The gtop program is extremely configurable. As a result, the
       <TT
CLASS="GUILABEL"
><B
>Preferences dialogue</B
></TT
> box is rather large. It is 
       split into seven main areas:
      <P
></P
><UL
><LI
><P
>          <A
HREF="preferences.html#GLOBALPREFS"
><TT
CLASS="GUILABEL"
><B
>Global</B
></TT
></A
>
        </P
></LI
><LI
><P
>          <A
HREF="preferences.html#PROCPREFS"
><TT
CLASS="GUILABEL"
><B
>Processes</B
></TT
></A
>
        </P
></LI
><LI
><P
>          <A
HREF="preferences.html#FIELDSPREFS"
><TT
CLASS="GUILABEL"
><B
>Process Fields</B
></TT
></A
>
        </P
></LI
><LI
><P
>          <A
HREF="preferences.html#SUMMPREFS"
><TT
CLASS="GUILABEL"
><B
>Summary</B
></TT
></A
>
        </P
></LI
><LI
><P
>          <A
HREF="preferences.html#COLPREFS"
><TT
CLASS="GUILABEL"
><B
>Summary Colors</B
></TT
></A
>
        </P
></LI
><LI
><P
>          <A
HREF="preferences.html#MEMPREFS"
><TT
CLASS="GUILABEL"
><B
>Memory Usage</B
></TT
></A
>
        </P
></LI
><LI
><P
>          <A
HREF="preferences.html#FSPREFS"
><TT
CLASS="GUILABEL"
><B
>File System Usage</B
></TT
></A
>
        </P
></LI
><LI
><P
>          <A
HREF="preferences.html#GRAPHPREFS"
><TT
CLASS="GUILABEL"
><B
>Graph</B
></TT
></A
>
        </P
></LI
></UL
>
     </P
><P
>        Only five of these show up in the selection area at the top of
        the box. There is a pair of arrows to the right of these five.
        Clicking those arrows alters the selected area. To reach the two
        sections not initially displayed, use these arrows to cycle 
        through the options. To select a preference section, click on 
        the name of the section.
     </P
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="GLOBALPREFS"
><TT
CLASS="GUILABEL"
><B
>Global preferences</B
></TT
></A
></H2
><P
>        The <B
CLASS="GUIBUTTON"
>session management checkbox</B
> will save the 
        state of gtop's session if checked. This includes not only the 
        preferences but the window position. Next time you run it, it will 
        remember and use those. 
      </P
><P
>        Despite being in the global preferences section, the 
        <TT
CLASS="GUILABEL"
><B
>update times</B
></TT
> for the graphical summary refer 
        to the moving graphs in the processes display.
      </P
><P
>        The <TT
CLASS="GUILABEL"
><B
>textual summary</B
></TT
> refers to the 
        <TT
CLASS="GUILABEL"
><B
>statusbar</B
></TT
> found at the base of the gtop display.
      </P
><P
>        <TT
CLASS="GUILABEL"
><B
>MDI mode</B
></TT
> refers to the multiple document 
        interface, which is how GNOME displays more than one document in an 
        application. This guide has been written under the assumption that 
        you are using the default of 'notebook'. More details on this are 
        available in the GNOME Users Guide in the control-center section. 
      </P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="PROCPREFS"
><TT
CLASS="GUILABEL"
><B
>Processes</B
></TT
></A
></H2
><P
>        Preferences in this section affect the process window.
      </P
><P
>        The <TT
CLASS="GUILABEL"
><B
>font selector</B
></TT
> will invoke a new dialogue 
        window which allows you to examine and choose different fonts which 
        should be used for the processes window.
      </P
><P
>        The <TT
CLASS="GUILABEL"
><B
>details</B
></TT
> section will alter how the details 
        of a process you select with the mouse button (either double-clicking 
        on the process with <SPAN
CLASS="MOUSEBUTTON"
>button one</SPAN
>, or 
        selecting it with <SPAN
CLASS="MOUSEBUTTON"
>button one</SPAN
> and choosing 
        the 'details' entry on the menu found by pressing
        <SPAN
CLASS="MOUSEBUTTON"
>button two</SPAN
>) are displayed to you.
      </P
><P
>        <B
CLASS="GUIBUTTON"
>Cumulative timings</B
> in the miscellaneous 
        section refers to toggling whether the <B
CLASS="GUIBUTTON"
>Time</B
> 
        field in the process display shows the time used by that process 
        only (the default, with this unchecked) or the time used by that 
        process plus all the processes it spawned (shown if you enable 
        this) and which are now dead. 
      </P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="FIELDSPREFS"
><TT
CLASS="GUILABEL"
><B
>Process Fields</B
></TT
></A
></H2
><P
>        This allows you to select which fields should be displayed on
        the process display and how many characters wide they should be.
        There are three fields which are not displayed by default:
        'resident', 'utime', and 'stime'. They can be selected here. And
        any field can be unselected and removed from the process display.
      </P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="SUMMPREFS"
><TT
CLASS="GUILABEL"
><B
>Summary</B
></TT
></A
></H2
><P
>        The <B
CLASS="GUIBUTTON"
>font selector</B
> will invoke a new dialogue 
        window which allows you to examine and choose different fonts which 
        should be used for the <TT
CLASS="GUILABEL"
><B
>statusbar</B
></TT
>: the single 
        line of information at the base of each display.
      </P
><P
>        The <TT
CLASS="GUILABEL"
><B
>graphical summary</B
></TT
> refers to the graphical 
        summary on the processes window. The <TT
CLASS="GUILABEL"
><B
>textual summary
        </B
></TT
> refers to the <TT
CLASS="GUILABEL"
><B
>statusbar</B
></TT
> at the base 
        of all windows. Unchecking the <B
CLASS="GUIBUTTON"
>text summary
        box</B
> removes that line completely. Checking the 
        <B
CLASS="GUIBUTTON"
>text summary box</B
> but not the <B
CLASS="GUIBUTTON"
>status 
        bar</B
> results in the <TT
CLASS="GUILABEL"
><B
>hostname</B
></TT
> section 
        being removed from the display.
      </P
><P
>        Note that checking the <B
CLASS="GUIBUTTON"
>memory</B
> and 
        <B
CLASS="GUIBUTTON"
>swap</B
> statistics checkboxes
        for the <TT
CLASS="GUILABEL"
><B
>textual summary</B
></TT
> (unchecked by default) 
        will redraw the window to be very much wider to fit the extra 
        information in. Although the window can be resized, if you have a 
        screen size of 640x480 or 800x600, you may find this too wide for 
        comfort initially.
      </P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="COLPREFS"
><TT
CLASS="GUILABEL"
><B
>Summary colors</B
></TT
></A
></H2
><P
>        This section deals with the colours used on the processes window
        in the small graphs at the top. Clicking on any colour will
        bring up the GNOME colour wheel for you to alter the colours
        displayed.
      </P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="MEMPREFS"
><TT
CLASS="GUILABEL"
><B
>Memory Usage</B
></TT
></A
></H2
><P
>        This section allows you to refine the display on the memory use
        window. The minimum sizes are the minimum size required for a
        process to be displayed as a separate entity. The remainder are
        grouped together at the bottom of the display. The process
        selection helps cut down (or expand) the processes whose memory
        use is displayed. User processes means only those processes
        owned by the user who started gtop. Controlling tty means only
        those processes which run in a terminal are displayed, removing
        many background system daemons from the display.
     </P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="FSPREFS"
><TT
CLASS="GUILABEL"
><B
>Filesystem usage</B
></TT
></A
></H2
><P
>       This section allows you to refine the display on the filesystem
       usage window. You can restrict your view to only certain types
       of filesystems. Most of these are designed for particular operating
       systems. However, it is often the case that other operating systems
       know how to read them too. 
     </P
><P
>       You can also alter what gtop looks for when counting up what is
       free, used or the total. These are radio buttons, so you can only
       pick one at a time. You can choose to view inodes, one-kilobyte
       blocks, or one-kilobyte blocks including reserved blocks. Inodes 
       are where UNIX stores information about files: the permissions, the 
       size, where on the filesystem it lives, everything but the name of 
       the file, essentially. Reserved blocks are part of the filesystem 
       which only root can write to. They take up about five to ten
       per cent of the filesystem. This helps stop the disk filling 
       completely as the result of user actions. But it also means that 
       reserved blocks are not available for users to use. The most useful 
       view is probably the default of one-kilobyte blocks, but you can 
       select inodes or one-kilobyte blocks including reserved blocks if 
       you choose.  
     </P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="GRAPHPREFS"
><TT
CLASS="GUILABEL"
><B
>Graph</B
></TT
></A
></H2
><P
>       This section allows you to alter the appearance of the large
       graph on the left in the memory usage and filesystem usage windows.
       The geometry sizes are in pixels. The colours are altered in the
       same way as the colours of the process window's graphics: by 
       clicking on a colour to invoke the GNOME colour wheel.
     </P
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