1 The following is a demonstration of the sar-c.d script.
4 Here we run both sar-c.d and "sar -c 1 100" at the same time, to compare
10 Time scall/s sread/s swrit/s fork/s exec/s rchar/s wchar/s
11 2005 Jun 14 02:40:24 1556 82 71 0.00 0.00 10262 10508
12 2005 Jun 14 02:40:25 1553 88 75 0.00 0.00 15095 15341
13 2005 Jun 14 02:40:26 1596 89 76 0.00 0.00 14885 15131
14 2005 Jun 14 02:40:27 5395 290 154 9.00 10.00 185991 77219
15 2005 Jun 14 02:40:28 1755 91 98 1.00 1.00 15421 16788
16 2005 Jun 14 02:40:29 1757 100 91 1.00 1.00 17127 17462
17 2005 Jun 14 02:40:30 1603 95 80 0.00 0.00 16767 16634
18 2005 Jun 14 02:40:31 14380 83 2420 1.00 1.00 14556 126461
19 2005 Jun 14 02:40:32 10573 88 1586 0.00 0.00 14222 87888
20 2005 Jun 14 02:40:33 1645 87 76 0.00 0.00 15320 15608
21 2005 Jun 14 02:40:34 2099 167 130 0.00 0.00 126295 74281
22 2005 Jun 14 02:40:35 1559 79 67 0.00 0.00 11663 11977
29 SunOS jupiter 5.10 Generic i86pc 06/14/2005
31 02:40:23 scall/s sread/s swrit/s fork/s exec/s rchar/s wchar/s
32 02:40:24 1549 86 74 0.00 0.00 14799 15040
33 02:40:25 1552 85 73 0.00 0.00 14475 14719
34 02:40:26 5479 300 161 9.00 10.00 186755 77983
35 02:40:27 1725 86 94 0.99 0.99 14819 16172
36 02:40:28 1596 96 82 0.00 0.00 16521 16762
37 02:40:29 1716 93 85 1.00 1.00 16395 16730
38 02:40:30 1579 88 75 0.00 0.00 15324 15192
39 02:40:32 23036 79 3887 0.99 0.99 10113 193520
40 02:40:33 1756 94 83 0.00 0.00 14935 15300
41 02:40:34 2099 165 130 0.00 0.00 125051 73552
42 02:40:35 1560 82 69 0.00 0.00 15976 16287
45 We can see that both tools are producing similar data.
47 The DTrace output lacks the "summary since boot" line, as it is not using
48 Kstat to fetch this data.
51 The sar-c.d script is not intended itself as a useful program, rather it
52 is intended as a starting point for other DTrace scripts; a starting point
53 of familiar statistics to provide the programmer with a "common ground"