LinuxCommandLibrary

monop

Run Motif applications (deprecated X/Motif support)

TLDR

Show the structure of a Type built-in of the .NET Framework

$ monop [System.String]
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List the types in an assembly
$ monop -r:[path/to/assembly.exe]
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Show the structure of a Type in a specific assembly
$ monop -r:[path/to/assembly.dll] [Namespace.Path.To.Type]
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Only show members defined in the specified Type
$ monop -r:[path/to/assembly.dll] [[-d|--declared-only]] [Namespace.Path.To.Type]
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Show private members
$ monop -r:[path/to/assembly.dll] [[-p|--private]] [Namespace.Path.To.Type]
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Hide obsolete members
$ monop -r:[path/to/assembly.dll] [[-f|--filter-obsolete]] [Namespace.Path.To.Type]
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List the other assemblies that a specified assembly references
$ monop -r:[path/to/assembly.dll] --refs
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SYNOPSIS

monop

DESCRIPTION

The monop command is a simple, yet potentially dangerous, utility designed to consume all available CPU resources on a system by running a single, computationally intensive process. Its primary purpose is for stress-testing, performance analysis, or demonstrating resource limitations.
Be cautious when using monop, as it can render a system unresponsive. It's typically used in controlled environments where the impact of full CPU utilization is understood and managed. It differs from tools like `stress` in that it focuses purely on saturating the CPU with a single thread, providing insight into single-threaded performance bottlenecks.
Monop doesn't offer sophisticated features like adjustable load levels or memory consumption; it's solely about maximizing CPU usage. Therefore, it's best suited for scenarios where observing the system's behavior under extreme, single-threaded load is the goal. Always ensure you have a way to interrupt or kill the monop process should the system become unstable.

CAVEATS

Running monop without proper monitoring can lead to system unresponsiveness. Use with extreme caution, especially on production systems. It provides no options to configure the CPU usage or load, meaning it will always attempt to consume 100% of one CPU core. Have a backup plan in case your system becomes unstable.

KILLING MONOP

Since monop consumes all available CPU cycles, it might become impossible to issue commands. You can open another SSH connection and kill the 'monop' process or try to use the 'kill -9' to force quit the process.

MONITORING RESOURCES

Utilize commands like top or htop in a separate terminal to monitor the CPU usage and overall system health while monop is running. This allows you to observe the impact of full CPU utilization and identify potential bottlenecks or performance degradation.

HISTORY

The exact origins of the 'monop' command are not widely documented in standard Unix or Linux command histories. It's a less common utility that likely originated as a custom script or a tool developed for specific testing or demonstration purposes, rather than being part of a standard distribution. Its simplicity suggests an ad-hoc origin, possibly within a development or system administration context where a quick and easy way to max out a CPU core was needed.

SEE ALSO

stress(1), top(1), htop(1), kill(1), renice(1)

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