From d31c9082c99ec115a89d320eaba9966b3b99f9eb Mon Sep 17 00:00:00 2001 From: gferg <> Date: Fri, 16 Feb 2001 23:26:20 +0000 Subject: [PATCH] new; converetd to SGML from HTML --- LDP/howto/docbook/Process-Accounting.sgml | 182 ++++++++++++++++++++++ 1 file changed, 182 insertions(+) create mode 100644 LDP/howto/docbook/Process-Accounting.sgml diff --git a/LDP/howto/docbook/Process-Accounting.sgml b/LDP/howto/docbook/Process-Accounting.sgml new file mode 100644 index 00000000..e8712cf2 --- /dev/null +++ b/LDP/howto/docbook/Process-Accounting.sgml @@ -0,0 +1,182 @@ + +
+ + Enabling Process Accounting on Linux HOWTO + + Albert M.C. + Tam + +
bertie@scn.org
+ + + + Describes the basics of enabling process accounting on + Linux. + + 2001-02-09 + + + 1.1 + 2001-02-09 + KET + + + 1.0 + 1997-08-08 + AMCT + + + + Kristin + Thomas + Converted document from HTML to DocBook v4.1 (SGML) + + + + Preamble + This document is copylefted by Albert M.C. Tam + (bertie@scn.org). Permission to use, copy, distribute this + document for non-commerical purposes is hereby granted, provided that the + author's/editor's name and this notice appear in all copies and/or supporting + documents and provided that this document is not modified. This document is distributed in + hope that it will be useful, but WITHOUT ANY WARRANTY, either expressed or + implied. While every effort has been taken to ensure the accuracy of the + information documented herein, the author/editor/maintainer assumes NO + RESPONSIBILITY for errors, or for damages resulting for the use of the + information documented herein. + + + Introduction + This document describes how to enable system process accounting on + a Linux host and the usage of various process accounting commands. It is + intended for users running kernel versions greater than or equal to 1.3.73 + (tested on RedHat&trade 4.1 kernel 2.0.27). Kernels older than 1.3.73 may + need a patch in order to use the process accounting feature. + Feel free to send any feedback or comments to bertie@scn.org + if you find an error, or if any information is missing. I appreciate it. + + + What is process accounting? + Process accounting is the method of recording and summarizing + commands executed on Linux. The modern Linux kernel is capable of keeping + process accounting records for the commands being run, the user who executed + the command, the CPU time, and much more. + Process accounting enables you to keep detailed accounting + information for the system resources used, their allocation among users, and + system monitoring. + + + Current Status of Process Accounting under Linux + Process accounting support has been integrated into the newer + kernels (version >= 1.3.73). If you are running an older kernel, you may + need some patch files. The patches are available from + ftp://iguana.hut.fi/pub/linux/Kernel/process_accounting + + + + Requirements for Process Accounting on Linux + + Kernel + A Linux kernel version greater than or equal to version 1.3.73 is required, and I + recommended 2.x. The kernel source is available from + http://sunsite.unc.edu/pub/Linux/kernel/v2.0 + + + + Process Accounting Software + Depending on the Linux distribution you have, you may + not have the process accounting software package installed on your system. If + you don't have it, try downloading the package from + http://sunsite.unc.edu/pub/Linux/system/admin/quota-acct-modified.tgz + + + + + Process Accounting Setup on Linux + + + Compile and install process accounting software. + The process accounting software package is available from + http://sunsite.unc.edu/pub/Linux/system/admin/quota-acct-modified.tgz + + + + Modify your system init script and turn on process accounting + at boot time. + Here's an example: + # Turn process accounting on. +if [ -x /sbin/accton ] +then + /sbin/accton /var/log/pacct + echo "Process accounting turned on." +fi + + + + Create accounting record file "pacct." + Your process accounting software will print out all commands + executed to the file /var/log/pacct by default. + To create the accounting record file: + touch /var/log/pacct + This record file should be owned by root, and it has read-write + permission for root and read permission for anybody else: + chown root /var/log/pacct +chmod 0644 /var/log/pacct + + + Reboot. + Now reboot your system for changes you made to take effect. + + + + + + Miscellaneous Process Accounting Commands + + + ac + + ac prints out statistics about users' connection times in + hours based on the logins and logouts in the current /var/log/wtmp file. ac is + also capable of printing out time totals for each day (-d option), and for each + user (-p option). + + + + accton + + accton is used to turn on or turn off process accounting. + The file is normally executed at system bootup or shutdown via system init + scripts. + + + + last + + last goes through the /var/log/wtmp file and prints out + information about users' connection times. + + + + sa + + sa summarizes accounting information from previously + executed commands, software I/O operation times, and CPU times, as recorded in the + accounting record file /var/account/pacct. + + + + lastcomm + + lastcomm prints out the information about all previously + executed commands, recorded in /var/account/pacct. + + + + +
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