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.TH "FLASHSTAT" "8" "" "flashstat" ""
.hy
.SH NAME
.PP
flashstat \- Display flashcache statistic information
.SH DESCRIPTION
.PP
The purpose of the \f[B]flashstat\f[] command is to periodically display
flashcache statistic information
.SH SYNOPSIS
.PP
flashstat [\-h] [\-i <time Interval>] [\-C <count>] [\-d <device>] [\-n]
.SH OPTIONS
.TP
.B \-h, \-\-help
Print help info
.RS
.RE
.TP
.B \-i, \-\-interval
Time(second) interval, the default value is 1s
.RS
.RE
.TP
.B \-C, \-\-count
Display times
.RS
.RE
.TP
.B \-d, \-\-device
Flashcache device, the default device is /dev/mapper/cachedev
.RS
.RE
.TP
.B \-n, \-\-nocolor
No color mode
.RS
.RE
.SH OUTPUT
.PP
read/s \- reads per second for cachedev
.PP
write/s \- writes per second for cachedev
.PP
diskr/s \- disk reads per second
.PP
diskw/s \- disk writes per second
.PP
ssdr/s \- ssd reads per second
.PP
ssdw/s \- ssd writes per second
.PP
uread/s \- uncached reads per second
.PP
uwrit/s \- uncached writes per second
.PP
metaw/s \- metadata ssd writes per second
.PP
clean/s \- cleanings per second
.PP
repl/s \- replacement per second
.PP
wrepl/s \- write replacement per second
.PP
hit% \- read hit percent(current hit%|total hit%)
.PP
whit% \- write hit percent(current whit%|total whit%)
.PP
dwhit% \- dirty write hit percent(current dwhit%|total dwhit%)
.SH SEE ALSO
.PP
\f[I]README\f[] and other documents in
\f[B]/usr/share/doc/flashcache\-utils\f[]
.PP
The flashcache source code and all documentation may be downloaded from
<https://github.com/facebook/flashcache/>.
.SH AUTHORS
.PP
Flashstat is developed by NinGoo <seaman.ning@gmail.com>
.PP
This man page was written by Liang Guo <guoliang@debian.org> for Debian
GNU/Linux (but may be used by others).