Date: Thu, 19 Jul 2012 14:25:58 -0700 From: Alfred Perlstein <alfred@freebsd.org> To: Matthew Jacob <mj@feral.com> Cc: freebsd-arch@freebsd.org Subject: Re: aio in GENERIC? Message-ID: <20120719212558.GO98608@elvis.mu.org> In-Reply-To: <500830D5.6000409@feral.com> References: <3CE55F29-A5B2-44A7-8854-1ED38BAE6F16@FreeBSD.org> <50075072.5050906@gmail.com> <500752CD.9030107@feral.com> <CAJ-Vmo=n=5LAcMS=WPBKNpPB3HZmn2UK9z_gS0R_2bFwHGMEag@mail.gmail.com> <500830D5.6000409@feral.com>
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* Matthew Jacob <mj@feral.com> [120719 09:08] wrote:
> On 7/19/2012 8:58 AM, Adrian Chadd wrote:
> >.. the API supports the avoidance of copyin/copyout?
> >
> >
> okay, I'll buy that, although I'm not certain of the utility in general
> of that.
>
> The reason I asked was that I have rarely, if ever, run into an AIO
> implementation that was more trouble than it was worth. It certainly has
> caused major grief in FreeBSD when used with CAM target mode.
{AIO,Pthreads,SMP,etc} are hard, let's go shopping?
really? :)
-Alfred
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