отображать информацию о кеш-памяти ядра в реальном времени (display kernel slab cache information in real time)
Имя (Name)
slabtop - display kernel slab cache information in real time
Синопсис (Synopsis)
slabtop [options]
Описание (Description)
slabtop displays detailed kernel slab cache information in real
time. It displays a listing of the top caches sorted by one of
the listed sort criteria. It also displays a statistics header
filled with slab layer information.
Параметры (Options)
Normal invocation of slabtop does not require any options. The
behavior, however, can be fine-tuned by specifying one or more of
the following flags:
-d, --delay=N
Refresh the display every n in seconds. By default,
slabtop refreshes the display every three seconds. To
exit the program, hit q.
-s, --sort=S
Sort by S, where S is one of the sort criteria.
-o, --once
Display the output once and then exit.
-V, --version
Display version information and exit.
-h, --help
Display usage information and exit.
SORT CRITERIA
The following are valid sort criteria used to sort the individual
slab caches and thereby determine what are the "top" slab caches
to display. The default sort criteria is to sort by the number
of objects ("o").
The sort criteria can also be changed while slabtop is running by
pressing the associated character.
character description header
a number of active objects ACTIVE
b objects per slab OBJ/SLAB
c cache size CACHE SIZE
l number of slabs SLABS
v number of active slabs N/A
n name NAME
o number of objects OBJS
p pages per slab N/A
s object size OBJ SIZE
u cache utilization USE
Команды (Commands)
slabtop accepts keyboard commands from the user during use. The
following are supported. In the case of letters, both cases are
accepted.
Each of the valid sort characters are also accepted, to change
the sort routine. See the section SORT CRITERIA.
<SPACEBAR>
Refresh the screen.
Q Quit the program.
Файлы (Files)
/proc/slabinfo
slab information
Смотри также (See also)
free(1), ps(1), top(1), vmstat(8)
Примечание (Note)
Currently, slabtop requires a 2.4 or later kernel (specifically,
a version 1.1 or later /proc/slabinfo). Kernel 2.2 should be
supported in the future.
The slabtop statistic header is tracking how many bytes of slabs
are being used and is not a measure of physical memory. The
'Slab' field in the /proc/meminfo file is tracking information
about used slab physical memory.
