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