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Diffstat (limited to 'cddl/contrib/dtracetoolkit/Examples/vmstat_example.txt')
| -rw-r--r-- | cddl/contrib/dtracetoolkit/Examples/vmstat_example.txt | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/cddl/contrib/dtracetoolkit/Examples/vmstat_example.txt b/cddl/contrib/dtracetoolkit/Examples/vmstat_example.txt new file mode 100644 index 000000000000..7d953fd9b672 --- /dev/null +++ b/cddl/contrib/dtracetoolkit/Examples/vmstat_example.txt @@ -0,0 +1,45 @@ +The following is an example of the vmstat.d script, + + +We run both vmstat.d and the original vmstat(1M) command at the same time +to compare outputs, + + $ vmstat 1 + kthr memory page disk faults cpu + r b w swap free re mf pi po fr de sr cd s0 -- -- in sy cs us sy id + 0 0 0 1147468 144324 2 8 2 1 1 0 0 1 0 0 0 294 990 355 18 2 80 + 1 0 0 1065480 92276 13 73 0 0 0 0 0 0 0 0 0 359 1055 376 85 15 0 + 0 0 0 1052088 82940 0 0 0 0 0 0 0 0 0 0 0 409 999 402 97 3 0 + 0 0 0 1052088 82940 0 0 0 0 0 0 0 0 0 0 0 406 975 407 97 3 0 + 0 0 0 1052088 82940 0 0 0 0 0 0 0 0 0 0 0 406 1037 429 97 3 0 + 0 0 0 1052088 82940 247 1763 0 0 0 0 0 2 0 0 0 427 4828 680 81 19 0 + 0 0 0 1051264 82300 0 0 0 0 0 0 0 0 0 0 0 414 1164 441 97 3 0 + 0 0 0 1051264 82300 11 134 0 0 0 0 0 0 0 0 0 423 1218 461 95 5 0 + 0 0 0 1051264 82300 0 0 0 0 0 0 0 0 0 0 0 416 1054 435 98 2 0 + [...] + + # ./vmstat.d + w swap free re mf pi po fr sr in sy cs + 0 1052088 82940 8 80 0 0 0 0 117 958 379 + 0 1052088 82940 0 0 0 0 0 0 123 955 402 + 0 1052088 82940 0 0 0 0 0 0 121 1025 420 + 0 1052088 82940 0 0 0 0 0 0 121 1065 433 + 0 1051264 82300 1008 7192 0 0 0 0 219 4886 684 + 0 1051264 82300 0 0 0 0 0 0 193 1188 461 + 0 1051264 82300 44 540 0 0 0 0 165 1226 450 + 0 1051264 82300 0 0 0 0 0 0 123 1012 421 + [...] + +Above we can see the columns are corresponding well. "re" and "mf" in the +DTrace output appear four times as large as they should be, because in the +DTrace output we are printing Kbs not page counts (for consistancy). + +The DTrace output lacks the "summary since boot" line, as it is not using +Kstat to fetch this data. + + +The vmstat.d script is not intended itself as a useful program, rather it +is intended as a starting point for other DTrace scripts; a starting point +of familiar statistics to provide the programmer with a "common ground" +of knowledge. + |