Date: Wed, 5 Feb 2003 00:04:30 +0100 From: Brad Knowles <brad.knowles@skynet.be> To: Poul-Henning Kamp <phk@freebsd.org> Cc: current@freebsd.org Subject: Re: Preview: GEOMs statistics code. Message-ID: <a05200f08ba65f714a4e9@[146.106.12.76]> In-Reply-To: <25779.1044395087@critter.freebsd.dk> References: <25779.1044395087@critter.freebsd.dk>
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At 10:44 PM +0100 2003/02/04, Poul-Henning Kamp wrote:
> In difference from the devstat framework which measures how big a
> percentage of the time a drive has one or more outstanding requests,
> I think that measuring the responstime is a much more useful metric.
> (comments, input, references welcome)
This is queue depth versus latency, right? I don't suppose a
request to provide both would hold any weight with you, would it?
--
Brad Knowles, <brad.knowles@skynet.be>
"They that can give up essential liberty to obtain a little temporary
safety deserve neither liberty nor safety."
-Benjamin Franklin, Historical Review of Pennsylvania.
GCS/IT d+(-) s:+(++)>: a C++(+++)$ UMBSHI++++$ P+>++ L+ !E-(---) W+++(--) N+
!w--- O- M++ V PS++(+++) PE- Y+(++) PGP>+++ t+(+++) 5++(+++) X++(+++) R+(+++)
tv+(+++) b+(++++) DI+(++++) D+(++) G+(++++) e++>++++ h--- r---(+++)* z(+++)
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