The Sysadmin’s Daily Grind: Bootchart
What could be more boring than watching a computer run through an error-free boot routine? Why watch for messages that may never appear? Every second you save adds to your valuable leisure time. Bootchart helps you find those valuable leisure moments.
Bootchart  runs in the background while a computer is booting, keeping a watchful eye on the hard disk and the CPU load, noting the launch order for daemons, and letting you know if something is causing a delay. After collecting the results, Bootchart presents the relevant information in a user friendly graphic like the chart shown in Figure 1. Version 0.4 of Bootchart is a 60KB tar archive, which you can quickly unpack by typing tar xvzpf bootchart-0.4.tar.gz Now that was quick, or was it? A glance at the readme file reveals that Bootchart needs a Java Development Kit. Fortunately, the tool isn’t fussy about your choice of Java; it works fine with GCJ , the IBM Developer Kit , and Sun’s J2SE SDK  – I opted for Sun’s coffee roaster. I didn’t want to do without an I/ O load display, so I followed the recommendation in the readme and installed iostat from the sysstat package .
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