[ANNOUNCE] Hotplug-Perl 1.1 Update

[ANNOUNCE] Hotplug-Perl 1.1 Update

[Anthony Awtrey]

ANNOUNCEMENT

Version 1.1 of hotplug-perl is now available at:
  http://opensource.idealcorp.com/hotplug-perl/

CHANGES

This release fixes a bug relating to pack/unpack functions on big-endian
machines in the IEEE1394 / USB and INPUT modules bit tests. Thanks to
Jörg Sommer for the report and the suggested fix.

GENERAL DESCRIPTION

Hotplug-perl is a boot speed performance oriented implementation of
hotplug written in Perl. It requires a 2.6 kernel with hotplug and Perl
5.8. It was developed with Debian Sarge as the target, but should work
elsewhere. The web page includes bootcharts demonstrating the
performance improvement over the Bash implementation of hotplug.

OTHER INFORMATION

Since its release just over a month ago, Hotplug-Perl has been
downloaded over 500 times, has been included in the CRUX linux
distribution[1] and is being considered by Mandriva to address boot
speed issues[2].

[1] http://clc.morpheus.net:6999/clc/chngview?cn"24
[2] http://qa.mandriva.com/show_bug.cgi?id\x15339

As suggested in a couple of emails, Debian users can now add the
following to their /etc/apt/sources.list to get automated updates in the
future:

deb     http://opensource.idealcorp.com/debian ./
deb-src http://opensource.idealcorp.com/debian ./

Thanks to everyone for all the emails of encouragement and support. Glad
to be of assistance!

Tony
-- 
Anthony L. Awtrey
Chief Technology Officer
[T]  407.999.9870 x13
[F]  407.999.9850

I.D.E.A.L. Technology Corporation
http://www.idealcorp.com

"The Leader in Linux and Open Source Solutions"




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Re: [ANNOUNCE] Hotplug-Perl 1.1 Update

[David Brownell]

On Monday 06 June 2005 8:00 am, Anthony Awtrey wrote:

> GENERAL DESCRIPTION
> 
> Hotplug-perl is a boot speed performance oriented implementation of
> hotplug written in Perl. It requires a 2.6 kernel with hotplug and Perl
> 5.8. It was developed with Debian Sarge as the target, but should work
> elsewhere. The web page includes bootcharts demonstrating the
> performance improvement over the Bash implementation of hotplug.

Interesting.  It strikes me that the original BASH script development
was done for kernels that don't configure every single PCI and USB
driver ... and those bootcharts suggest that when all those drivers
get configured, as for a mainstream distro like Debian, speed then
becomes a much more visible issue.

Using BASH was a way to get things started (the initial scripts were
just a few dozen emailable lines of code), and ensure that sysadmins
could extend hotplugging using traditional tools (or of course just
replacing the program entirely).  It's not exactly the best language
for programming with non-trivial datasets.

- Dave


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Re: [ANNOUNCE] Hotplug-Perl 1.1 Update

[Marco d'Itri]

On Jun 06, David Brownell <david-b@pacbell.net> wrote:

> Interesting.  It strikes me that the original BASH script development
> was done for kernels that don't configure every single PCI and USB
> driver ... and those bootcharts suggest that when all those drivers
> get configured, as for a mainstream distro like Debian, speed then
> becomes a much more visible issue.
The bottleneck are the bitmask operations implemented in the agent
scripts, which are going to be replaced anyway by hotplug-ng.
The coldplugging code itself is very simple and is not supposed to be a
bottleneck (but looks like it will be replaced by something even simpler
when some needed kernel support will be added).

While I'm a perl fan myself, I can't see the point of this exercise.

-- 
ciao,
Marco


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