vxmemstat(1M) VxVM 3.5 vxmemstat(1M)
1 Jun 2002
NAME [Toc] [Back]
vxmemstat - display memory statistics for VERITAS Volume Manager
SYNOPSIS [Toc] [Back]
vxmemstat [-i interval [-t count]]
DESCRIPTION [Toc] [Back]
The vxmemstat utility prints memory statistics information. This
information is system-wide and not specific to a disk group, volume or
any other Volume Manager object.
OPTIONS [Toc] [Back]
-i interval
Prints memory statistics every interval seconds.
-t count Prints the local system time every count intervals. The
time interval is specified using the -i interval option.
OUTPUT FORMAT [Toc] [Back]
The statistics are prefaced by a timestamp showing the current local
time on the system. Statistics are printed as a one-line output record
for each memory pool. The records are preceded by two header lines.
The output line consists of blank-separated fields. All numeric fields
are in units of kilobytes.
The following fields are displayed on each line:
Pool Name of the memory pool. Memory consumers allocate memory
from different pools for different purposes.
Min Size Minimum amount of memory always reserved for use by
consumers of the pool. As consumers require more memory,
additional memory is allocated to the pool for distribution
to them.
Max Size Maximum amount of memory that can be allocated to the pool.
This is equal to the value assigned to the maximum pool size
system tunable that corresponds to the pool.
In Use Amount of memory (out of that allocated) currently being
used by consumers of the memory pool.
Allocated Amount of memory currently allocated to the memory pool. The
amount of memory allocated to a pool ranges between the
minimum and the maximum pool size. The amount of allocated
memory increases as more memory is needed and decreases as
it is relinquished.
Max Used Maximum amount of memory used by consumers from this pool
since system startup.
- 1 - Formatted: January 24, 2005
vxmemstat(1M) VxVM 3.5 vxmemstat(1M)
1 Jun 2002
Waiting Indicates if any I/O is waiting to allocate memory from this
pool. This usually indicates that the corresponding tunable
for the maximum size of this pool needs to be increased.
EXIT CODES [Toc] [Back]
The vxmemstat utility exits with a non-zero status if the attempted
operation fails. A non-zero exit code is not a complete indicator of
the problems encountered, but rather denotes the first condition that
prevented further execution of the utility.
See vxintro(1M) for a list of standard exit codes.
EXAMPLES [Toc] [Back]
To display statistics every 5 seconds and time stamp the output every
alternate interval, use the command:
vxmemstat -i 5 -t 2
SEE ALSO [Toc] [Back]
vxintro(1M), vxstat(1M)
- 2 - Formatted: January 24, 2005 [ Back ] |
