Date: Fri, 16 Mar 2001 12:02:21 -0600 From: Dan Nelson <dnelson@emsphone.com> To: Alfred Perlstein <bright@wintelcom.net> Cc: "Sergey A. Osokin" <osa@freebsd.org.ru>, current@FreeBSD.ORG Subject: Re: libdevstat Message-ID: <20010316120221.A23314@dan.emsphone.com> In-Reply-To: <20010316084351.A29888@fw.wintelcom.net>; from "Alfred Perlstein" on Fri Mar 16 08:43:51 GMT 2001 References: <20010316181315.A91097@freebsd.org.ru> <20010316092730.C1800@dan.emsphone.com> <20010316192727.A97376@freebsd.org.ru> <20010316084351.A29888@fw.wintelcom.net>
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In the last episode (Mar 16), Alfred Perlstein said:
> > > In the last episode (Mar 16), Sergey A. Osokin said:
> > > > What do you think about add to libdevstat in/out/other
> > > > statistics? I think transfer great too, but sometimes that's
> > > > not enough. iostat can't show read and write stats separatly,
> > > > because compute_stats from libdevstat simply sum up all results
> > > > (in/out/other).
>
> I think what he's saying is that libdevstat is OK, it's just that the
> tools that use it sum up the stats instead of displaying them
> inidividually.
>
> I would look at fixing iostat because libdevstat seems to provide all
> the data needed.
Yep, that's what I meant. If anyone is planning on adding features to
iostat, Solaris has some nice features to copy:
-x rotates the output so each drive gets its own line, with the
following info:
r/s w/s kr/s kw/s wait actv svc_t %w %b
So "iostat -x n 23 2" prints a full-screen display of the first 23
drives in your system, updated every 2 seconds.
http://www.FreeBSD.org/cgi/man.cgi?query=iostat&manpath=SunOS+5.8
--
Dan Nelson
dnelson@emsphone.com
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