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-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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-<html xmlns="http://www.w3.org/1999/xhtml">
-<head>
-<meta name="generator" content="HTML Tidy, see www.w3.org" />
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-<tr>
-<th colspan="3" align="center">Slackware Linux Essentials</th>
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-<tr>
-<td width="10%" align="left" valign="bottom"><a href="process-control-kill.html"
-accesskey="P">Prev</a></td>
-<td width="80%" align="center" valign="bottom">Chapter 11 Process Control</td>
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-<div class="SECT1">
-<h1 class="SECT1"><a id="PROCESS-CONTROL-TOP" name="PROCESS-CONTROL-TOP">11.5 <tt
-class="COMMAND">top</tt></a></h1>
-
-<p>Finally, there's a command you can use to display updating information about the
-processes running on the system. This command is called <tt class="COMMAND">top</tt>(1),
-and is started like so:</p>
-
-<table border="0" bgcolor="#E0E0E0" width="100%">
-<tr>
-<td>
-<pre class="SCREEN">
-<samp class="PROMPT">%</samp> <kbd class="USERINPUT">top</kbd>
-</pre>
-</td>
-</tr>
-</table>
-
-<p>This will display a full screen of information about the processes running on the
-system, as well as some overall information about the system. This includes load average,
-number of processes, the CPU status, free memory information, and details about processes
-including PID, user, priority, CPU and memory usage information, running time, and
-program name.</p>
-
-<table border="0" bgcolor="#E0E0E0" width="100%">
-<tr>
-<td>
-<pre class="SCREEN">
- 6:47pm up 1 day, 18:01, 1 user, load average: 0.02, 0.07, 0.02
-61 processes: 59 sleeping, 2 running, 0 zombie, 0 stopped
-CPU states: 2.8% user, 3.1% system, 0.0% nice, 93.9% idle
-Mem: 257992K av, 249672K used, 8320K free, 51628K shrd, 78248K buff
-Swap: 32764K av, 136K used, 32628K free, 82600K cached
-
-<span class="emphasis"><i
-class="EMPHASIS">PID USER PRI NI SIZE RSS SHARE STAT LIB %CPU %MEM TIME COMMAND</i></span>
- 112 root 12 0 19376 18M 2468 R 0 3.7 7.5 55:53 X
-4947 david 15 0 2136 2136 1748 S 0 2.3 0.8 0:00 screenshot
-3398 david 7 0 20544 20M 3000 S 0 1.5 7.9 0:14 gimp
-4946 root 12 0 1040 1040 836 R 0 1.5 0.4 0:00 top
- 121 david 4 0 796 796 644 S 0 1.1 0.3 25:37 wmSMPmon
- 115 david 3 0 2180 2180 1452 S 0 0.3 0.8 1:35 wmaker
-4948 david 16 0 776 776 648 S 0 0.3 0.3 0:00 xwd
- 1 root 1 0 176 176 148 S 0 0.1 0.0 0:13 init
- 189 david 1 0 6256 6156 4352 S 0 0.1 2.4 3:16 licq
-4734 david 0 0 1164 1164 916 S 0 0.1 0.4 0:00 rxvt
- 2 root 0 0 0 0 0 SW 0 0.0 0.0 0:08 kflushd
- 3 root 0 0 0 0 0 SW 0 0.0 0.0 0:06 kupdate
- 4 root 0 0 0 0 0 SW 0 0.0 0.0 0:00 kpiod
- 5 root 0 0 0 0 0 SW 0 0.0 0.0 0:04 kswapd
- 31 root 0 0 340 340 248 S 0 0.0 0.1 0:00 kerneld
- 51 root 0 0 48 48 32 S 0 0.0 0.0 0:00 dhcpcd
- 53 bin 0 0 316 316 236 S 0 0.0 0.1 0:00 rpc.portmap
- 57 root 0 0 588 588 488 S 0 0.0 0.2 0:01 syslogd
-</pre>
-</td>
-</tr>
-</table>
-
-<p>It's called <tt class="COMMAND">top</tt> because the most CPU intensive programs will
-be listed at the top. An interesting note is that top will be listed first on most
-inactive (and some active) systems because of its CPU utilization. However, <tt
-class="COMMAND">top</tt> is quite useful for determining what program is misbehaving and
-needs to be killed off.</p>
-
-<p>But suppose you only want a list of your own processes, or the processes of some other
-user. The processes you want to see might not be among the most CPU intensive programs
-currently running. The <var class="OPTION">-u</var> option allows you to specify a
-username or UID and monitor only those processes owned by that UID.</p>
-
-<table border="0" bgcolor="#E0E0E0" width="100%">
-<tr>
-<td>
-<pre class="SCREEN">
-<samp class="PROMPT">%</samp> <kbd class="USERINPUT">top -u alan</kbd>
- PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
-3622 alan 13 0 11012 10m 6956 S 1.0 2.1 0:03.66 gnome-terminal
-3739 alan 13 0 1012 1012 804 R 0.3 0.2 0:00.06 top
-3518 alan 9 0 1312 1312 1032 S 0.0 0.3 0:00.09 bash
-3529 alan 9 0 984 984 848 S 0.0 0.2 0:00.00 startx
-3544 alan 9 0 640 640 568 S 0.0 0.1 0:00.00 xinit
-3548 alan 9 0 8324 8320 6044 S 0.0 1.6 0:00.30 gnome-session
-3551 alan 9 0 7084 7084 1968 S 0.0 1.4 0:00.50 gconfd-2
-3553 alan 9 0 2232 2232 380 S 0.0 0.4 0:00.05 esd
-3555 alan 9 0 2552 2552 1948 S 0.0 0.5 0:00.10 bonobo-activati
-3557 alan 9 0 2740 2740 2224 S 0.0 0.5 0:00.05 gnome-smproxy
-3559 alan 9 0 6496 6492 5004 S 0.0 1.3 0:00.31 gnome-settings-
-3565 alan 9 0 1740 1740 1440 S 0.0 0.3 0:00.28 xscreensaver
-3568 alan 9 0 7052 7052 4960 S 0.0 1.4 0:02.28 metacity
-3572 alan 9 0 11412 11m 7992 S 0.0 2.2 0:01.58 gnome-panel
-3574 alan 9 0 12148 11m 8780 S 0.0 2.4 0:00.64 nautilus
-3575 alan 9 0 12148 11m 8780 S 0.0 2.4 0:00.00 nautilus
-3576 alan 9 0 12148 11m 8780 S 0.0 2.4 0:00.00 nautilus
-</pre>
-</td>
-</tr>
-</table>
-
-<p>As you can see, I'm currently running <tt class="COMMAND">X</tt>, <tt
-class="COMMAND">top</tt>, a <tt class="COMMAND">gnome-terminal</tt> (in which I'm writing
-this) and many other X-related processes which take up the most CPU time for me. This is
-a good way to monitor how hard your users are working your system.</p>
-
-<p><tt class="COMMAND">top</tt> also supports monitoring processes by their PID, ignoring
-idle and zombied processes, and many other options. The best place to get a handle on
-these options is the man page for <tt class="COMMAND">top</tt>.</p>
-</div>
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