Date: Mon, 03 Apr 2006 14:04:11 -0500 From: Eric Anderson <anderson@centtech.com> To: freebsd-fs@freebsd.org Subject: Re: Opinions on interesting VFS calls Message-ID: <443171AB.3040400@centtech.com> In-Reply-To: <200604030813.k338Dnne036145@lurza.secnetix.de> References: <200604030813.k338Dnne036145@lurza.secnetix.de>
next in thread | previous in thread | raw e-mail | index | archive | help
Oliver Fromme wrote: > Eric Anderson <anderson@centtech.com> wrote: > > I'm still tinkering on a vfsstats tool in my spare time, and I've got a > > few questions for those interested: > > > > 1. What are the top ten most interesting vfs calls for statistics purposes? > > I'm not sure if this is an answer to your question, but I > would love to be able to get latency statistics from the > I/O system. For example the average latency for reading, > especially via NFS, but also local disks might be useful. > That is, min/max/average how long processes have to wait > for the NFS server (or for a local disk), in milliseconds > or whatever. As far as I know, there is currently no way > to get such statistics. Not an answer at all, but a great idea no less! Thanks! I'll think about that, and how I might toss that in too. Eric -- ------------------------------------------------------------------------ Eric Anderson Sr. Systems Administrator Centaur Technology Anything that works is better than anything that doesn't. ------------------------------------------------------------------------
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?443171AB.3040400>