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Sub::WrapPackages - add pre- and post-execution wrappers around all the subroutines in packages or around individual subs.

Sys::CPU - Perl extension for getting CPU information. In responce to a post on perlmonks.org, a module for counting the number of CPU's on a system. Support has now also been added for type of CPU and clock speed. While much of the code is from UNIX::Processors, Win32 support has been added (but not tested).

Have you ever tried to debug a test script that is failing tests? Without too many modifications, your test script can generate a log file with information about each failed test. You can take your existing test script, and with (hopefully) very little effort, convert it to use Test::Debugger. Then re-run your modified test and view the log file it creates.

Sys::Info is a Perl module to fetch information from the host system.

Sys::MemInfo return the total amount of free and used physical memory in bytes in totalmem and freemem variables. Total amount of free and user swap memory are alse returned in totalswap and freeswap variables.

Sys::SigAction - Perl extension for Consistent Signal Handling. With the use of this module, the signal handling behavior can be coded in a way that does not change from one perl version to the next, and thus using POSIX::sigaction() becomes a little easier.

Use epoll, sendfile, from Perl. Mostly Linux-only support now, but more syscalls/OSes planned for future.

The Sys::Virt module provides a Perl XS binding to the libvirt virtual machine management APIs. This allows machines running within arbitrary virtualization containers to be managed with a consistent API.

System::Command is a class that launches external system commands and return an object representing them, allowing to interact with them through their STDIN, STDOUT and STDERR handles.

A number of simple closures designed to help output TAP easily and correctly, with a minimum of fuss.