The comparison results between two-level incremental checkpoint recovery scheme and two-level checkpoint recovery scheme for the Weibull distribution.

Abstract

<p>(a) The relationship between the total overheads of setting checkpoints and the number of failures; (b) The relationship between the total re-computing time and the number of failures; (c) The relationship between the total overheads of recovering from the failures and the number of failures; (d) The relationship between the system total overheads and the number of failures; Note: Time Unit depends on parameters in practical implementation, such as the practical value of <i>O_m</i>, so it is not given here, which is similar to the case in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0104591#pone-0104591-g006" target="_blank">Figs. 6</a>–<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0104591#pone-0104591-g010" target="_blank">10</a>.</p