Uswsusp

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Uswsusp
Initial release	April 21, 2006 (2006-04-21)
Latest release	0.8 / January 2, 2008 (2008-01-02); 163 days ago
Written in	C
OS	Linux
Available in	English
License	GNU General Public License
Website	suspend.sourceforge.net

uswsusp (userspace software suspend) is a suspend-to-disk implementation for user space applications for the Linux kernel, compatible with kernels 2.6.17 and onwards. It supports both s2ram ("standby") and s2disk ("hibernate"), as well as a mode called "s2both", which saves state to disk and then to RAM. It is intended for use in low-battery situations, where if power can be restored immediately, the machine can be quickly restored from RAM, but if the battery fails, the machine can still be restored from disk. It supports image checksumming, compression, encryption as well as integration with Splashy for a GUI while suspending.