Re: [PATCH] udev enhancements to use kernel event queue

From: Greg KH (
Date: Fri Jun 13 2003 - 13:23:30 EST

On Fri, Jun 13, 2003 at 09:03:19AM -0700, Steven Dake wrote:
> >Aside from that, what exactly are you trying to do?
> >You are not solving the fundamental device node reuse race,
> >yet you are making necessary a further demon.
> >
> >
> For device enumeration, I see a daemon as necessary. The main goal of
> this work is to solve the out-of-order execution of sbin/hotplug and
> improve performance of the system during device enumeration with
> significant (200 disks, 4 partitions each) amounts of devices. Boot
> time with this scheme appears, in my rudimentary tests, to be faster on
> the order of 1-2 seconds for bootup for the case of just 12 disks. I
> would imagine 200 disks (which I don't have a good way to test, as I
> don't have 200 disks:) would provide better speed gains during bootup.
> This compares greg's original udev to this patched udev binary.

You're also using a 500k dynamically linked binary. Please don't do
that for testing/real life. Use the 6k udev binary for you tests...


greg k-h
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