I like iostat, but...

[Borja Marcos]

On Sep 23, 2014, at 10:38 AM, Stefan Parvu 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.)
> 
> I gave up parsing sysctl via Perl for disks and network devices. It would be
> nice to have devstat properly working via sysctl for disk devices. Similar way
> kern.cp_times does. Currently there is no simple way to extract per disk stats from
> sysctl as a Perl or Sh consumer, unless we build a C module to do that. 

Anyway, for disk stats GEOM offers a nice API. You can get delays per GEOM provider, bandwidths, etc.





Borja.