lookbusy 1.3 -- a synthetic load generator for Lin
2016-08-23
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lookbusy 1.3 -- a synthetic load generator for Linux systems
This is lookbusy, a tool for making systems busy. It uses relatively simple
techniques to generate CPU activity, memory and disk utilization and traffic.
lookbusy is not a benchmarking tool, or a realistic load simulator. While it
attempts to produce load factors which are exhibited by real applications, the
exact operations used are not modelled on real applications, and at the low
level, the exact hardware operations are not identical.
* Process Structure
One lookbusy process is forked for each load-generation task -- that is, one
process per CPU, one for memory usage, and one for each file on disk being
used, plus a toplevel parent process. Errors in or termination of any process
will trigger a shutdown in all others. It's safe to use ^C from a terminal,
or to kill processes remotely.
* CPU Usage Modes
This is lookbusy, a tool for making systems busy. It uses relatively simple
techniques to generate CPU activity, memory and disk utilization and traffic.
lookbusy is not a benchmarking tool, or a realistic load simulator. While it
attempts to produce load factors which are exhibited by real applications, the
exact operations used are not modelled on real applications, and at the low
level, the exact hardware operations are not identical.
* Process Structure
One lookbusy process is forked for each load-generation task -- that is, one
process per CPU, one for memory usage, and one for each file on disk being
used, plus a toplevel parent process. Errors in or termination of any process
will trigger a shutdown in all others. It's safe to use ^C from a terminal,
or to kill processes remotely.
* CPU Usage Modes
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