Date: Sun, 11 Feb 2018 21:06:12 +0200 From: "E.S. Rosenberg" <esr@cs.huji.ac.il> To: freebsd-fs@freebsd.org Subject: raw filesystem counters Message-ID: <CA%2BK1OzSda42zBCfT4n0_DScf74TsJyHsxBHaxZwcjkOe3ccmwA@mail.gmail.com>
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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
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