Date: Tue, 23 Sep 2014 08:56:54 +0200 From: Borja Marcos <borjam@sarenet.es> To: David Wolfskill <david@catwhisker.org> Cc: freebsd-performance@freebsd.org Subject: Re: I like iostat, but... Message-ID: <35F9FD7B-6847-4209-A2F9-B1F0ABD01E4C@sarenet.es> In-Reply-To: <20140922212209.GA9619@albert.catwhisker.org> References: <20140922212209.GA9619@albert.catwhisker.org>
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On Sep 22, 2014, at 11:22 PM, David Wolfskill wrote: > ... I rather wish I could get the same information via sysctl. (Well, > something seems to be available via the "opaque" kern.devstat.all > sysctl(8) variable, but sysctl(8) doesn't display all of it, and = parsing > it seems as if that would require knowledge about the internals of the > system where the data were acquired.) Reading sysctl from a small C program is not hard at all. I did it for = devilator (a data recollector for Orca). And there's a lot of data available. An advantage is, you avoid launching = several processes. Borja.
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