TuxOnIce

• It has an extensible architecture that allows for arbitrary transformations on the image and arbitrary backends for writing the image;
• It prepares the image and allocates storage prior to doing any storage and accounts for memory and storage usage very carefully, thereby becoming more reliable;
• Its current modules for writing the image have been designed for speed, combining asynchronous I/O, multithreading and readahead with LZF compression in its default configuration to read and write the image as fast as hardware is able;
• It has an active community supporting it via a wiki, mailing lists and irc channel ;
• It is more flexible and configurable ;
• Whereas the current swsusp implementations support writing the image to one swap device only, TuxOnIce supports multiple devices in any combination of swap files and swap partitions. It can also write the image to an ordinary file, thereby avoiding potential race issues in freeing memory when preparing to suspend.
• It supports encryption by various methods;
• It can store a full image of memory, while uswsusp and swsusp write at most half the amount of RAM.