1 .TH xvmstat 1m "$Date:: 2007-08-05 #$" "USER COMMANDS"
3 xvmstat \- extended vmstat demo in DTrace. Uses DTrace.
8 This has been written to demonstrate fetching similar data as vmstat
9 from DTrace, with a few extra fields.
11 Since this uses DTrace, only the root user or users with the
12 dtrace_kernel privilege can run this command.
16 unstable - needs various kernel symbols.
19 Print virtual memory statistics every second,
23 Print every 5 seconds, 6 times,
31 swapped out LWPs, number
34 virtual memory free, Mb
49 copy-on-write faults, pages
52 protection faults, pages
57 executable page ins, pages
60 executable page outs, pages
63 executable frees, pages
66 anonymous page ins, pages
69 anonymous page outs, pages
72 anonymous frees, pages
75 filesystem page ins, pages
78 filesystem page outs, pages
81 filesystem frees, pages
84 Most of the statistics are in units of pages, unlike the
85 original vmstat command which sometimes uses kilobytes.
87 All page values are per second values.
89 As this program does not use Kstat, there is no summary since boot line.
91 Free RAM is both free free + cache free.
94 See the DTraceToolkit for further documentation under the
95 Docs directory. The DTraceToolkit docs may include full worked
96 examples with verbose descriptions explaining the output.
98 xvmstat will run until Ctrl\-C is hit, or until the count argument
104 vmstat(1M), dtrace(1M)