Date: Wed, 29 Aug 2012 11:07:37 +0300 From: Daniel Braniss <danny@cs.huji.ac.il> To: Andrey Zonov <zont@FreeBSD.org> Cc: freebsd-hackers@freebsd.org, Andy Young <ayoung@mosaicarchive.com> Subject: Re: Question on io monitoring tools such as gstat and iostat Message-ID: <E1T6dJJ-000Ljx-F7@kabab.cs.huji.ac.il> In-Reply-To: <503D0308.70109@FreeBSD.org> References: <CAHMRaQcmY_oEvMGKXYtkEU%2Bt7LrSogFT3AbakrRxHakKabNhwg@mail.gmail.com> <503D0308.70109@FreeBSD.org>
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> This is an OpenPGP/MIME signed message (RFC 2440 and 3156) > --------------enigCDF012FCB4FC78B4732FDA45 > Content-Type: text/plain; charset=ISO-8859-1 > Content-Transfer-Encoding: quoted-printable > > On 8/28/12 3:14 PM, Andy Young wrote: > > I am relatively new to using IO monitoring tools and wanted to confirm = > I > > understand them correctly. If I specify an interval of 5 seconds, my > > assumption is that the data displayed is an average over that 5 second > > interval. Is that correct or am I misunderstanding how intervals work? > >=20 > > Yes, you are right. For more information you can read devstat(3) or > sources in src/lib/libdevstat/devstat.c. netstat does not! danny
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