| Current File : //usr/man/man1m/fsstat.1m |
'\" te
.\" Copyright (c) 2007, 2015, Oracle and/or its affiliates. All rights reserved.
.TH fsstat 1M "06 Apr 2015" "SunOS 5.11" "System Administration Commands"
.SH NAME
fsstat \- report file system statistics
.SH SYNOPSIS
.LP
.nf
\fBfsstat\fR [\fB-A|a|f|i|n|v|Z\fR] [\fB-T\fR d|u] [[\fB-z\fR \fIzone\fR]...]
{\fB-F\fR | {\fIfstype\fR|\fIpath\fR}...} [\fIinterval\fR [\fIcount\fR]]
.fi
.SH DESCRIPTION
.sp
.LP
\fBfsstat\fR reports kernel file operation activity by the file system type (\fIfstype\fR) or by the path name, which is converted to a mount point. The first set of lines of output reports all activity since:
.RS +4
.TP
.ie t \(bu
.el o
The file system module was loaded (in the case of \fIfstype\fR)
.RE
.RS +4
.TP
.ie t \(bu
.el o
The file system was mounted (in the case of mount point)
.RE
.sp
.LP
Statistics are gathered at the file system independent layer at both the \fIfstype\fR and the mount point levels. However, not all file system types are represented in the gathering of statistics. (See the NOTES section of this man page.)
.sp
.LP
The output of \fBfsstat\fR is dependent on the mode (option) requested. All statistic fields are displayed using "smart numbers" which automatically scale the units in a human readable form that fits in a maximum of 5 characters. For example:
.sp
.ne 2
.mk
.na
\fB100\fR
.ad
.RS 11n
.rt
is displayed as 100
.RE
.sp
.ne 2
.mk
.na
\fB2048\fR
.ad
.RS 11n
.rt
is displayed as 2K
.RE
.sp
.ne 2
.mk
.na
\fB3000000\fR
.ad
.RS 11n
.rt
is displayed as 2.86M
.RE
.sp
.LP
The unit modifiers are: K (Kbyte), M (Mbyte), G (Gbyte), T (terabyte), P (petabyte), and E (exabyte).
.sp
.LP
During the execution of \fBfsstat\fR, the state of the system can change. If relevant, a state change message is included in the \fBfsstat\fR output in one of the following forms:
.sp
.in +2
.nf
<<mount point no longer available: {path}>>
<<file system module no longer loaded: {fstype}>>
<<zone no longer active: {zonename}>>
<<zone now active: {zonename}>>
.fi
.in -2
.sp
.sp
.LP
After the state change messages are displayed, \fBfsstat\fR continues to display the statistics as directed. If all of the \fIfstypes\fR and mount points that \fBfsstat\fR was reporting on are no longer available, then \fBfsstat\fR exits.
.sp
.LP
The user is required to specify the \fB-F\fR option (all available file system types) or a list of one or more \fIfstypes\fR and/or mount points.
.sp
.LP
The default report shows general file system activity. This display combines similar operations into general categories as follows:
.sp
.ne 2
.mk
.na
\fBnew file\fR
.ad
.RS 15n
.rt
Number of creation operations for file system objects (for example, files, directories, symlinks, etc.)
.RE
.sp
.ne 2
.mk
.na
\fBname remov\fR
.ad
.RS 15n
.rt
Number of name removal operations
.RE
.sp
.ne 2
.mk
.na
\fBname chng\fR
.ad
.RS 15n
.rt
Number of name change operations
.RE
.sp
.ne 2
.mk
.na
\fBattr get\fR
.ad
.RS 15n
.rt
Number of object attribute retrieval operations
.RE
.sp
.ne 2
.mk
.na
\fBattr set\fR
.ad
.RS 15n
.rt
Number of object attribute change operations
.RE
.sp
.ne 2
.mk
.na
\fBlookup ops\fR
.ad
.RS 15n
.rt
Number of object lookup operations
.RE
.sp
.ne 2
.mk
.na
\fBrddir ops\fR
.ad
.RS 15n
.rt
Number of read directory operations
.RE
.sp
.ne 2
.mk
.na
\fBread ops\fR
.ad
.RS 15n
.rt
Number of data read operations
.RE
.sp
.ne 2
.mk
.na
\fBread bytes\fR
.ad
.RS 15n
.rt
Bytes transferred by data read operations
.RE
.sp
.ne 2
.mk
.na
\fBwrite ops\fR
.ad
.RS 15n
.rt
Number of data write operations
.RE
.sp
.ne 2
.mk
.na
\fBwrite bytes\fR
.ad
.RS 15n
.rt
Bytes transferred by data write operations
.RE
.sp
.LP
The entity being reported on (\fIfstype\fR or mount point) is displayed in the last column.
.SH OPTIONS
.sp
.LP
The following options are supported:
.sp
.ne 2
.mk
.na
\fB\fB-A\fR\fR
.ad
.RS 17n
.rt
Report aggregate activity for the specified \fBfstype\fRs across all zones. This is the default behavior if neither \fB-z\fR nor \fB-Z\fR are specified.
.sp
When used in conjunction with \fB-z\fR or \fB-Z\fR, the \fB-A\fR option will additionally report on a separate line the aggregate for the specified \fBfstype\fRs across all zones.
.RE
.sp
.ne 2
.mk
.na
\fB\fB-a\fR\fR
.ad
.RS 17n
.rt
Report the activity for kernel attribute operations. The following statistics are reported:
.sp
.ne 2
.mk
.na
\fBgetattr\fR
.ad
.RS 11n
.rt
Number of file attribute retrieval calls
.RE
.sp
.ne 2
.mk
.na
\fBsetattr\fR
.ad
.RS 11n
.rt
Number of file attribute modification calls
.RE
.sp
.ne 2
.mk
.na
\fBgetsec\fR
.ad
.RS 11n
.rt
Number of file security attribute retrieval calls
.RE
.sp
.ne 2
.mk
.na
\fBsetsec\fR
.ad
.RS 11n
.rt
Number of file security attribute modification calls
.RE
The entity being reported on (\fIfstype\fR or mount point) is displayed in the last column.
.RE
.sp
.ne 2
.mk
.na
\fB\fB-F\fR\fR
.ad
.RS 17n
.rt
Report on all available file system types.
.RE
.sp
.ne 2
.mk
.na
\fB\fB-f\fR\fR
.ad
.RS 17n
.rt
Report the full activity for all kernel file operations. Each file operation is listed in the left column. The following statistics are reported for each operation:
.sp
.ne 2
.mk
.na
\fB#ops\fR
.ad
.RS 9n
.rt
Number of calls for this operation
.RE
.sp
.ne 2
.mk
.na
\fBbytes\fR
.ad
.RS 9n
.rt
Average transfer size in bytes (only applies to read, write, readdir)
.RE
The entity being reported on (\fIfstype\fR or mount point) is displayed in the first row.
.RE
.sp
.ne 2
.mk
.na
\fB\fB-i\fR\fR
.ad
.RS 17n
.rt
Reports the activity for kernel I/O operations. The following statistics are reported:
.sp
.ne 2
.mk
.na
\fBread ops\fR
.ad
.RS 15n
.rt
Number of data read calls
.RE
.sp
.ne 2
.mk
.na
\fBread bytes\fR
.ad
.RS 15n
.rt
Number of bytes read
.RE
.sp
.ne 2
.mk
.na
\fBwrite ops\fR
.ad
.RS 15n
.rt
Number of data write calls
.RE
.sp
.ne 2
.mk
.na
\fBwrite bytes\fR
.ad
.RS 15n
.rt
Number of bytes written
.RE
.sp
.ne 2
.mk
.na
\fBrddir ops\fR
.ad
.RS 15n
.rt
Number of read directory calls
.RE
.sp
.ne 2
.mk
.na
\fBrddir bytes\fR
.ad
.RS 15n
.rt
Number of bytes read by reading directories
.RE
.sp
.ne 2
.mk
.na
\fBrwlock ops\fR
.ad
.RS 15n
.rt
Number of internal file system lock operations
.RE
.sp
.ne 2
.mk
.na
\fBrwulock ops\fR
.ad
.RS 15n
.rt
Number of internal file system unlock operations
.RE
The entity being reported on (\fIfstype\fR or mount point) is displayed in the last column.
.RE
.sp
.ne 2
.mk
.na
\fB\fB-l\fR\fR
.ad
.RS 17n
.rt
Reports latency information for kernel I/O operations. The following statistics are reported:
.sp
.ne 2
.mk
.na
\fBread ops\fR
.ad
.RS 14n
.rt
Number of data read calls
.RE
.sp
.ne 2
.mk
.na
\fBread bytes\fR
.ad
.RS 14n
.rt
Number of bytes read
.RE
.sp
.ne 2
.mk
.na
\fBread time\fR
.ad
.RS 14n
.rt
Average read latency
.RE
.sp
.ne 2
.mk
.na
\fBread actv\fR
.ad
.RS 14n
.rt
Average number of active read operations
.RE
.sp
.ne 2
.mk
.na
\fBwrite ops\fR
.ad
.RS 14n
.rt
Number of data write calls
.RE
.sp
.ne 2
.mk
.na
\fBrdir ops\fR
.ad
.RS 14n
.rt
Number of read directory calls
.RE
.sp
.ne 2
.mk
.na
\fBrdir bytes\fR
.ad
.RS 14n
.rt
Number of bytes read by reading directories
.RE
.sp
.ne 2
.mk
.na
\fBrdir time\fR
.ad
.RS 14n
.rt
Average read directory call latency
.RE
.sp
.ne 2
.mk
.na
\fBrdir activ\fR
.ad
.RS 14n
.rt
Average number of active read directory operations
.RE
The entity being reported on (\fIfstype\fR or mount point) is displayed in the last column.
.RE
.sp
.ne 2
.mk
.na
\fB\fB-n\fR\fR
.ad
.RS 17n
.rt
Reports the activity for kernel naming operations. The following statistics are reported:
.sp
.ne 2
.mk
.na
\fBlookup\fR
.ad
.RS 11n
.rt
Number of file name retrieval calls
.RE
.sp
.ne 2
.mk
.na
\fBcreat\fR
.ad
.RS 11n
.rt
Number of file creation calls
.RE
.sp
.ne 2
.mk
.na
\fBremov\fR
.ad
.RS 11n
.rt
Number of file remove calls
.RE
.sp
.ne 2
.mk
.na
\fBlink\fR
.ad
.RS 11n
.rt
Number of link calls
.RE
.sp
.ne 2
.mk
.na
\fBrenam\fR
.ad
.RS 11n
.rt
Number of file renaming calls
.RE
.sp
.ne 2
.mk
.na
\fBmkdir\fR
.ad
.RS 11n
.rt
Number of directory creation calls
.RE
.sp
.ne 2
.mk
.na
\fBrmdir\fR
.ad
.RS 11n
.rt
Number of directory removal calls
.RE
.sp
.ne 2
.mk
.na
\fBrddir\fR
.ad
.RS 11n
.rt
Number of directory read calls
.RE
.sp
.ne 2
.mk
.na
\fBsymlink\fR
.ad
.RS 11n
.rt
Number of symlink creation calls
.RE
.sp
.ne 2
.mk
.na
\fBrdlink\fR
.ad
.RS 11n
.rt
Number of symlink read calls
.RE
The entity being reported on (\fIfstype\fR or mount point) is displayed in the last column.
.RE
.sp
.ne 2
.mk
.na
\fB\fB-v\fR\fR
.ad
.RS 17n
.rt
Reports the activity for calls to the virtual memory operations. The following statistics are reported.
.sp
.ne 2
.mk
.na
\fBmap\fR
.ad
.RS 10n
.rt
Number of calls mapping a file
.RE
.sp
.ne 2
.mk
.na
\fBaddmap\fR
.ad
.RS 10n
.rt
Number of calls setting additional mapping to a mapped file
.RE
.sp
.ne 2
.mk
.na
\fBdelmap\fR
.ad
.RS 10n
.rt
Number of calls deleting mapping to a file
.RE
.sp
.ne 2
.mk
.na
\fBgetpag\fR
.ad
.RS 10n
.rt
Number of calls retrieving a page of data from a file
.RE
.sp
.ne 2
.mk
.na
\fBputpag\fR
.ad
.RS 10n
.rt
Number of calls writing a page of data to a file
.RE
.sp
.ne 2
.mk
.na
\fBpagio\fR
.ad
.RS 10n
.rt
Number of calls to transfer pages in file system swap files
.RE
The entity being reported on (fstype or mount point) is displayed in the last column.
.RE
.sp
.ne 2
.mk
.na
\fB\fB-T\fR \fIu\fR|\fId\fR\fR
.ad
.RS 17n
.rt
Display a time stamp.
.sp
Specify \fIu\fR for a printed representation of the internal representation of time (see \fBtime\fR(2)) Specify \fId\fR for the standard date format. (See \fBdate\fR(1)). The time stamp is only used when an interval is set.
.RE
.sp
.ne 2
.mk
.na
\fB\fB-Z\fR\fR
.ad
.RS 17n
.rt
Report per-zone activity for each zone.
.sp
Specifying \fB-Z\fR has no effect if used in conjunction with \fB-z\fR.
.RE
.sp
.ne 2
.mk
.na
\fB\fB-z\fR [\fIzonename\fR]\fR
.ad
.RS 17n
.rt
Report on activity in the specified zone. Multiple \fB-z\fR options can be specified to monitor multiple zones. If \fB-z\fR is specified, the user is notified of state changes only for explicitly specified zones.
.RE
.SH OPERANDS
.sp
.LP
The following operands are supported:
.sp
.ne 2
.mk
.na
\fB\fIcount\fR\fR
.ad
.RS 12n
.rt
Display only \fIcount\fR reports.
.RE
.sp
.ne 2
.mk
.na
\fB\fIfstype\fR\fR
.ad
.RS 12n
.rt
Explicitly specify the file system type(s) to be reported. The file system module must be loaded.
.RE
.sp
.ne 2
.mk
.na
\fB\fIinterval\fR\fR
.ad
.RS 12n
.rt
Report once each \fIinterval\fR seconds.
.RE
.sp
.ne 2
.mk
.na
\fB\fIpath\fR\fR
.ad
.RS 12n
.rt
Specify the path(s) of the mount point(s) to be reported. If path is not a mount point, the mount point containing path will be determined and displayed in the output.
.RE
.sp
.LP
If no \fIinterval\fR and no \fIcount\fR are specified, a single report is printed and \fBfsstat\fR exits. If an \fIinterval\fR is specified but no \fIcount\fR is specified, \fBfsstat\fR prints reports every \fIinterval\fR seconds indefinitely until the command is interrupted.
.SH EXAMPLES
.sp
.LP
In some examples, \fBfsstat\fR output exceeds the width of 80-character displays.
.LP
\fBExample 1 \fRDisplaying General Activity
.sp
.LP
The following example shows general activity for all file system types.
.sp
.in +2
.nf
\fB$ fsstat -F\fR
new name name attr attr lookup rddir read read write write
file remov chng get set ops ops ops bytes ops bytes
313K 214K 38.5K 2.16M 56.2K 8.36M 52.8K 19.7M 39.9G 18.8M 39.1G ufs
0 0 0 2.95K 0 3.81K 282 2.52K 466K 0 0 proc
0 0 0 0 0 0 0 0 0 0 0 nfs
10 8 2 86 9 98 15 413 103M 8.43K 1.05G zfs
13 14 4 98 16 125 10 1.01K 258M 15.9K 127M lofs
8.73K 3.29K 5.25K 55.3K 37 1.20M 44 37.9K 38.3M 47.2K 35.9M tmpfs
0 0 0 4.93K 0 0 0 1.08K 913K 0 0 mntfs
3 2 1 503 3 897 13 122 25.8K 128 272K nfs3
10 8 0 615 10 10.1K 18 61 45.6K 292 2.26M nfs4
.fi
.in -2
.sp
.LP
\fBExample 2 \fRDisplaying Naming Activity
.sp
.LP
The following example shows the naming activity for ufs, nfs, nfs3, nfs4, and tmpfs:
.sp
.in +2
.nf
\fB$ fsstat -n ufs nfs nfs3 nfs4 tmpfs\fR
lookup creat remov link renam mkdir rmdir rddir symlnk rdlnk
3.57M 3.10K 586 6 24 115 100 30.2K 5 330K ufs
0 0 0 0 0 0 0 0 0 0 nfs
18.3K 3 5 0 0 0 0 1.03K 2 346 nfs3
535 0 0 0 0 0 0 46 0 4 nfs4
146 24 15 0 0 4 0 4 0 0 tmpfs
.fi
.in -2
.sp
.LP
\fBExample 3 \fRDisplaying Attribute Activity
.sp
.LP
The following example shows the attribute activity for the FS type ufs and the mounted file systems "/" and "/export/home" every three seconds for every third iteration:
.sp
.in +2
.nf
\fB# fsstat -a ufs / /export/home 3 3\fR
getattr setattr getsec setsec
378K 91.9K 11.8K 0 ufs
367K 82.3K 11.6K 0 /
11.3K 9.6K 198 0 /export/home
4.97K 2.27K 163 0 ufs
3.94K 1.36K 162 0 /
1.03K 927 1 0 /export/home
2.30K 1.06K 73 0 ufs
1.95K 766 71 0 /
361 317 2 0 /export/home
2.33K 1.06K 78 0 ufs
1.64K 451 77 0 /
711 631 1 0 /export/home
.fi
.in -2
.sp
.LP
\fBExample 4 \fRDisplaying File Operation Statistics
.sp
.LP
The following example shows the statistics for each file operation for "/" (using the \fB-f\fR option):
.sp
.in +2
.nf
\fB$ fsstat -f /\fR
Mountpoint: /
operation #ops bytes
open 8.54K
close 9.8K
read 43.6K 65.9M
write 1.57K 2.99M
ioctl 2.06K
setfl 4
getattr 40.3K
setattr 38
access 9.19K
lookup 203K
create 595
remove 56
link 0
rename 9
mkdir 19
rmdir 0
readdir 2.02K 2.27M
symlink 4
readlink 8.31K
fsync 199
inactive 2.96K
fid 0
rwlock 47.2K
rwunlock 47.2K
seek 29.1K
cmp 42.9K
frlock 4.45K
space 8
realvp 3.25K
getpage 104K
putpage 2.69K
map 13.2K
addmap 34.4K
delmap 33.4K
poll 287
dump 0
pathconf 54
pageio 0
dumpctl 0
dispose 23.8K
getsecattr 697
setsecattr 0
shrlock 0
vnevent 0
.fi
.in -2
.sp
.LP
\fBExample 5 \fRDisplaying per-Zone Statistics for All Zones
.sp
.LP
The following example shows per-zone statistics for each zone on the system, as well as a system-wide aggregate for \fBfstype\fRs \fBtmpfs\fR and \fBzfs\fR.
.sp
.in +2
.nf
$ \fBfsstat -A -Z tmpfs zfs\fR
new name name attr attr lookup rddir read read write write
file remov chng get set ops ops ops bytes ops bytes
125K 116K 8.92K 846K 1.25K 1.36M 252 1013K 913M 1.52M 1.55G tmpfs
98.9K 89.8K 8.87K 600K 1.19K 1.33M 226 394K 253M 1.04M 1.07G tmpfs:global
2.49K 2.42K 32 20.5K 45 3.82K 26 56.8K 85.8M 43.9K 69.5M tmpfs:zone1
23.3K 23.3K 13 226K 13 24.1K 0 562K 574M 452K 425M tmpfs:zone2
82.7K 232K 77.6K 4.72M 73.6K 22.7M 464K 2.88M 6.17G 828K 8.19G zfs
82.1K 231K 77.3K 4.46M 73.5K 21.8M 444K 2.53M 5.71G 809K 8.12G zfs:global
102 88 28 83.3K 68 326K 3.16K 238K 307M 10.5K 54.2M zfs:zone1
499 204 255 179K 34 599K 17.4K 125K 163M 8.85K 21.8M zfs:zone2
.fi
.in -2
.sp
.LP
\fBExample 6 \fRDisplaying per-Zone Statistics for Specific Zones
.sp
.LP
The following example shows per-zone statistics for zones \fBzone1\fR and \fBzone2\fR, as well as a system-wide aggregate, for \fBfstype\fRs \fBtmpfs\fR and \fBzfs\fR.
.sp
.in +2
.nf
$ \fBfsstat -A -Z zone1 -z zone2 tmpfs zfs\fR
new name name attr attr lookup rddir read read write write
file remov chng get set ops ops ops bytes ops bytes
125K 116K 8.92K 846K 1.25K 1.36M 252 1013K 913M 1.52M 1.55G tmpfs
2.49K 2.42K 32 20.5K 45 3.82K 26 56.8K 85.8M 43.9K 69.5M tmpfs:zone1
23.3K 23.3K 13 226K 13 24.1K 0 562K 574M 452K 425M tmpfs:zone2
82.7K 232K 77.6K 4.72M 73.6K 22.7M 464K 2.88M 6.17G 828K 8.19G zfs
102 88 28 83.3K 68 326K 3.16K 238K 307M 10.5K 54.2M zfs:zone1
499 204 255 179K 34 599K 17.4K 125K 163M 8.85K 21.8M zfs:zone2
.fi
.in -2
.sp
.LP
\fBExample 7 \fRExample 7 Displaying Global Zone-Only Statistics
.sp
.LP
The following example shows only the global zone's activity for all \fBfstype\fRs.
.sp
.in +2
.nf
$ \fBfsstat -z global -F\fR
new name name attr attr lookup rddir read read write write
file remov chng get set ops ops ops bytes ops bytes
0 0 0 0 0 0 0 0 0 0 0 ufs:global
0 0 0 171K 0 289K 2.05K 628K 262M 230K 10.6M proc:global
0 0 0 0 0 0 0 0 0 0 0 nfs:global
82.1K 231K 77.3K 4.46M 73.5K 21.8M 444K 2.53M 5.71G 809K 8.12G zfs:global
0 0 0 357K 0 0 0 0 0 0 0 lofs:global
98.9K 89.8K 8.87K 600K 1.19K 1.33M 226 394K 253M 1.04M 1.07G tmpfs:global
0 0 0 15.4K 0 0 0 7.44K 1.03M 0 0 mntfs:global
0 0 0 9.34K 0 9.24K 0 0 0 0 0 autofs:global
0 0 0 0 0 0 0 0 0 0 0 nfs3:global
2 3 0 9.16K 12 104K 4 46 179K 12 43.0K nfs4:global
.fi
.in -2
.sp
.SH ENVIRONMENT VARIABLES
.sp
.LP
See \fBenviron\fR(5) for descriptions of the following environment variables that affect the execution of \fBfsstat\fR: \fBLANG\fR, \fBLC_ALL\fR, \fBLC_CTYPE\fR, \fBLC_MESSAGES\fR, \fBLC_TIME\fR, and \fBNLSPATH\fR.
.SH EXIT STATUS
.sp
.LP
The following exit values are returned:
.sp
.ne 2
.mk
.na
\fB\fB0\fR\fR
.ad
.RS 5n
.rt
Successful completion.
.RE
.sp
.ne 2
.mk
.na
\fB\fB1\fR\fR
.ad
.RS 5n
.rt
A fatal error occurred. A fatal error could be a failed system call or another internal error.
.RE
.sp
.ne 2
.mk
.na
\fB\fB2\fR\fR
.ad
.RS 5n
.rt
Invalid command-line options were specified.
.RE
.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(5) for descriptions of the following attributes:
.sp
.sp
.TS
tab() box;
cw(2.75i) |cw(2.75i)
lw(2.75i) |lw(2.75i)
.
ATTRIBUTE TYPEATTRIBUTE VALUE
_
Availabilitysystem/core-os
_
CSIEnabled
_
Interface StabilitySee below.
.TE
.sp
.LP
The command-line options are Uncommitted. The human-readable output is not considered an interface.
.SH SEE ALSO
.sp
.LP
\fBdate\fR(1), \fBtime\fR(2), \fBattributes\fR(5)
.SH NOTES
.sp
.LP
All display options (\fB-a\fR, \fB-f\fR, \fB-i\fR, \fB-n\fR, \fB-v\fR) are mutually exclusive. Entering more than one of these options will result in an error.
.sp
.LP
The \fIfstype\fR and \fIpath\fR operands must appear after the option, but before the \fIinterval\fR or \fIcount\fR on the command line. For example, "\fBfsstat\fR \fB-a\fR \fIfstype\fR \fIinterval\fR". Preference is given to \fIfstype\fR so that if a user wishes to see the statistics for a directory that has the same name as an \fIfstype\fR (for example, ufs), then the path must be specified unambiguously (for example, ./ufs). Similarly, in order to define a file with a numeric name (for example, "10") from an interval or count operand, the name should be prefixed accordingly (for example, ./10).
.sp
.LP
When an interval is used, headers repeat after more than 12 lines of statistics have been displayed and the set of lines to be displayed in the current interval have completed.
.sp
.LP
Statistics are not displayed for all pseudo-filesystems. The output displayed with the \fB-F\fR option shows which of the loaded filesystem types are supported.
.sp
.LP
Unbundled file systems may not be recognized by \fBfsstat\fR.
.sp
.LP
The command-line options are classified as Uncommitted and could change. The output is not considered to be an interface. The construction of higher level software tools depend on either the command-line options or the output of \fBfsstat\fR is not recommended.