11-10-2009
We have eliminated slow syncing of mirrors because there aren't any mirrors.
We have eliminated wrong parameters to "newfs" or "extendfs" because LVM and "bdf" agree.
The usual reason for this discrepancy is that a program or user is deleting files which are open by an application which is still running. Usually in this circumstance "bdf" is right and "du" is wrong.
There are other possible reasons like embryonic files.
Do you get the disc space back after a reboot or application recycle perhaps?
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LEARN ABOUT LINUX
memusagestat
MEMUSAGESTAT(1) Linux programmer's manual MEMUSAGESTAT(1)
NAME
memusagestat - generate graphic from memory profiling data
SYNOPSIS
memusagestat [option]... datafile [outfile]
DESCRIPTION
memusagestat creates a PNG file containing a graphical representation of the memory profiling data in the file datafile; that file is gen-
erated via the -d (or --data) option of memusage(1).
The red line in the graph shows the heap usage (allocated memory) and the green line shows the stack usage. The x-scale is either the num-
ber of memory-handling function calls or (if the -t option is specified) time.
OPTIONS
-o file, --output=file
Name of the output file.
-s string, --string=string
Use string as the title inside the output graph.
-t, --time
Use time (rather than number of function calls) as the scale for the X axis.
-T, --total
Also draw a graph of total memory consumption.
-x size, --x-size=size
Make the output graph size pixels wide.
-y size, --y-size=size
Make the output graph size pixels high.
-?, --help
Print a help message and exit.
--usage
Print a short usage message and exit.
-V, --version
Print version information and exit.
EXAMPLE
See memusage(1).
BUGS
To report bugs, see <http://www.gnu.org/software/libc/bugs.html>
SEE ALSO
memusage(1), mtrace(1)
GNU
2014-09-06 MEMUSAGESTAT(1)