What are 'attaches' in vmstat?
Dan Ehrlich
ehrlich at cs.psu.edu
Tue Mar 19 03:28:00 AEST 1991
I have a question about vmstat. What does the 'at' field represent? The
man page says that 'at' is the number of 'attaches'. What are 'attaches'?
Here is a sample vmstat output:
guardian:50> vmstat 5
procs memory page disk faults cpu
r b w avm fre re at pi po fr de sr i0 i1 i1 s0 in sy cs us sy id
8 1 0 0 5048 0 5 2 0 0 0 0 14 0 0 0 57 86 40 85 4 10
Here is an extract from vmstat(1):
page Report information about page faults and paging
activity. The information on each of the following
activities is averaged each five seconds, and given
in units per second.
re page reclaims - but see the -S option for
how this field is modified.
at number of attaches - but see the -S option
for how this field is modified.
pi kilobytes per second paged in
po kilobytes per second paged out
fr kilobytes freed per second
de anticipated short term memory shortfall in
Kbytes
sr pages scanned by clock algorithm, per-second
Dan Ehrlich - Sr. Systems Programmer - Penn State Computer Science
<ehrlich at cs.psu.edu>/Voice: +1 814 863 1142/FAX: +1 814 865 3176
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