From: Greg KH <greg@kroah.com>
To: linux-hotplug@vger.kernel.org
Subject: Re: How to notify app of changed cpu/mem/io node configuration?
Date: Tue, 29 Jun 2004 06:24:12 +0000 [thread overview]
Message-ID: <20040629062412.GE2066@kroah.com> (raw)
In-Reply-To: <20040628173808.04718b83.pj@sgi.com>
On Mon, Jun 28, 2004 at 05:38:08PM -0700, Paul Jackson wrote:
> How is it that applications will be notified of changes in a systems
> configuration, such as cpu, memory or i/o nodes coming online and going
> offline?
Through /sbin/hotplug. Is that not acceptable?
I'm sure there will be a DBUS event generated from it :)
I've heard that the memory hotplug notifiers are working just fine
through that interface.
> I can imagine using for notification a new signal, that could be sent by
> an administrator or system service (batch manager, perhaps) to tasks if
> their allowed CPUs or Memory Nodes or other such had changed.
I recall some initial proposals for when CPUs were offlined, to send the
applications that were bound to those CPUs a specific signal, but I do
not know if that got implemented or not. Anyone know?
thanks,
greg k-h
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next prev parent reply other threads:[~2004-06-29 6:24 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-29 0:38 How to notify app of changed cpu/mem/io node configuration? Paul Jackson
2004-06-29 6:24 ` Greg KH [this message]
2004-06-29 8:37 ` Paul Jackson
2004-06-29 22:41 ` Dave Hansen
2004-06-29 23:15 ` Paul Jackson
2004-06-29 23:39 ` Dave Hansen
2004-06-29 23:53 ` Rusty Russell
2004-06-30 1:22 ` Paul Jackson
2004-06-30 1:38 ` Dave Hansen
2004-06-30 1:40 ` Paul Jackson
2004-06-30 2:16 ` Paul Jackson
2004-06-30 11:57 ` jlm_devel
2004-06-30 12:26 ` Paul Jackson
2004-06-30 13:08 ` Paul Jackson
2004-06-30 17:37 ` jlm_devel
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