Date: Mon, 14 Jan 2013 14:33:08 -0500 From: Alfred Perlstein <bright@mu.org> To: John Baldwin <jhb@freebsd.org> Cc: Adrian Chadd <adrian@freebsd.org>, src-committers@freebsd.org, Andre Oppermann <andre@freebsd.org>, Alan Cox <alc@rice.edu>, "Jayachandran C." <jchandra@freebsd.org>, Alexander Motin <mav@freebsd.org>, Oleksandr Tymoshenko <gonzo@bluezbox.com>, freebsd-arch@freebsd.org, svn-src-head@freebsd.org, svn-src-all@freebsd.org Subject: Re: svn commit: r243631 - in head/sys: kern sys Message-ID: <50F45D74.7000309@mu.org> In-Reply-To: <201301141255.46994.jhb@freebsd.org> References: <201211272119.qARLJxXV061083@svn.freebsd.org> <50F41F8C.5030900@freebsd.org> <50F4297F.8050708@FreeBSD.org> <201301141255.46994.jhb@freebsd.org>
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On 1/14/13 12:55 PM, John Baldwin wrote: > On Monday, January 14, 2013 10:51:27 am Alexander Motin wrote: >> As I've actually written, there are two different things: >> ncallout -- number of preallocated callout structures for purposes of >> timeout() calls. That is a legacy API that is probably not very much >> used now, so that value don't need to be too big. But that allocation is >> static and if it will ever be exhausted system will panic. That is why >> it was set quite high. The right way now would be to analyze where that >> API is still used and estimate the really required number. > FYI, I have slowly been working through the tree fixing users of timeout() > to use callout_*() instead. > We would surely be in a bad place had you not taken so much time to fix nearly all those instances. It is very much appreciated. -Alfred
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