Date: Mon, 12 Feb 2018 14:09:24 -0600 From: "Eric A. Borisch" <eborisch@gmail.com> To: "E.S. Rosenberg" <esr@cs.huji.ac.il> Cc: freebsd-fs@freebsd.org Subject: Re: raw filesystem counters Message-ID: <CAASnNnrYjYYijrBtz-bkxvMTa9ugYYLuiDtLNJM1gFJENdjYRg@mail.gmail.com> In-Reply-To: <CA%2BK1OzSda42zBCfT4n0_DScf74TsJyHsxBHaxZwcjkOe3ccmwA@mail.gmail.com> References: <CA%2BK1OzSda42zBCfT4n0_DScf74TsJyHsxBHaxZwcjkOe3ccmwA@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Sun, Feb 11, 2018 at 1:06 PM, E.S. Rosenberg <esr@cs.huji.ac.il> wrote: > Hi, > Hopefully I'm not asking something that has been answered thousands of > times, I did search but did not find. > > Is there any way to access raw disk counters similar to those found on > Linux in: > /sys/class/block/<device>/stat > > Preferably also by accessing such a virtual file and not by using iostat / > zpool iostat which are already pre-processing counters and need to be run > constantly to get accurate real-time estimates. > > So far I have not stumbled upon the right sysctl key to get these counters > (and TBH as said before I'd much rather read a "file" then run a command > though that matters less as long as the counters are raw). > > Background: I'm trying to get a better idea of what is going on with our > IO, I would like to push the counters into Zabbix and maybe other data > analysis software later so I prefer raw counters that can then be processed > by whatever software we are using. > > Thanks! > Eli iostat -Ixd dev0 [dev1 ..] Gives from-boot cumulative values; these can be shoved (with minimal awk processing) into Zabbix and pre-processed to "change per second" on the Zabbix server. Read/write ops/bytes as well as some other interesting stats. - Eric
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CAASnNnrYjYYijrBtz-bkxvMTa9ugYYLuiDtLNJM1gFJENdjYRg>