when i used sar -u -f xxxx
i've got the result like the following
...
18Aug200614:45:00 0 1 0 99
18Aug200614:50:00 1 1 0 98
18Aug200622:42:46 1 0 0 98
18Aug200607:00:00 0 0 100 0
18Aug200608:20:48 0 0 100 0
18Aug200606:53:46 0 0 100 0
18Aug200610:02:43 0 0 100 0
18Aug200602:51:06 0 0 100 0
18Aug200607:00:00 0 0 100 0
18Aug200607:00:00 0 0 100 0
18Aug200605:38:54 0 0 100 0
18Aug200607:00:00 0 0 100 0
18Aug200607:00:01 9 78 12 0
18Aug200607:00:00 121 133 0 -154
18Aug200607:00:00 2 3 90 5
18Aug200607:00:00 113 0 0 -13
18Aug200607:00:00 -0 0 100 -0
18Aug200607:00:00 -70 49 79 42
18Aug200607:00:00 -51 0 0 151
18Aug200607:00:00 29 784 -730 17
does anyone know why i've got the negative value
thanks in advance