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-r Report memory and swap space utilization statistics. The following values are displayed:
kbmemfree
Amount of free memory available in kilobytes.
kbmemused
Amount of used memory in kilobytes. This does not take into account memory used by the kernel itself.
%memused
Percentage of used memory.
kbbuffers
Amount of memory used as buffers by the kernel in kilobytes.
kbcached
Amount of memory used to cache data by the kernel in kilobytes.
kbswpfree
Amount of free swap space in kilobytes.
kbswpused
Amount of used swap space in kilobytes.
%swpused
Percentage of used swap space.
kbswpcad
Amount of cached swap memory in kilobytes. This is memory that once was swapped out, is swapped back in but still also is in the swap area (if mem-
ory is needed it doesn<A1><AF>t need to be swapped out again because it is already in the swap area. This saves I/O).
-R Report memory statistics. The following values are displayed:
frmpg/s
Number of memory pages freed by the system per second. A negative value represents a number of pages allocated by the system. Note that a page has
a size of 4 kB or 8 kB according to the machine architecture.
bufpg/s
Number of additional memory pages used as buffers by the system per second. A negative value means fewer pages used as buffers by the system.
campg/s
Number of additional memory pages cached by the system per second. A negative value means fewer pages in the cache. |
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发表于 2008-05-28 10:12
