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Groups > muc.lists.netbsd.tech.userlevel > #11853

Re: Improving the performance of system boot by eliding unused rc.d scripts and caching the result

From David Holland <dholland-tech@netbsd.org>
Newsgroups muc.lists.netbsd.tech.userlevel
Subject Re: Improving the performance of system boot by eliding unused rc.d scripts and caching the result
Date 2026-08-20 16:03 +0000
Organization Newsgate at muc.de e.V.
Message-ID <aoclasJcRjE4Emre@netbsd.org> (permalink)
References <rmi8q62ie5z.fsf@s1.lexort.com> <>

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On Wed, Aug 19, 2026 at 06:43:20AM -0400, Greg Troxel wrote:
 > > Is there any reason for the barrier scripts to physically exist?
 > 
 > Picking one arbitrarily,
 > 
 >   # $NetBSD: LOGIN,v 1.8 2022/03/02 01:55:18 gutteridge Exp $
 > 
 >   # PROVIDE: LOGIN
 >   # REQUIRE: DAEMON
 > 
 > I can see how you can impute that LOGIN provides LOGIN, but someplace
 > the information the LOGIN requires DAEMON has to exist.
 > 
 > How would you store and configuration manage the ordering requirements
 > among barrier scripts?

Just off the top of my head, you could:

 - hardwire the barrier sequence (admittedly not a great plan)
 - put it on the rcorder command line
 - put it all in a single non-executable file

-- 
David A. Holland
dholland@netbsd.org

--
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Thread

Improving the performance of system boot by eliding unused rc.d scripts and caching the result Jason Thorpe <thorpej@me.com> - 2026-08-17 21:46 -0700
  Re: Improving the performance of system boot by eliding unused rc.d scripts and caching the result Edgar Fuß <ef@math.uni-bonn.de> - 2026-08-18 11:07 +0200
    Re: Improving the performance of system boot by eliding unused rc.d scripts and caching the result Jason Thorpe <thorpej@me.com> - 2026-08-18 06:07 -0700
  Re: Improving the performance of system boot by eliding unused rc.d scripts and caching the result Greg Troxel <gdt@lexort.com> - 2026-08-18 06:41 -0400
    Re: Improving the performance of system boot by eliding unused rc.d scripts and caching the result Jason Thorpe <thorpej@me.com> - 2026-08-18 06:44 -0700
      Re: Improving the performance of system boot by eliding unused rc.d scripts and caching the result Mouse <mouse@Rodents-Montreal.ORG> - 2026-08-18 09:51 -0400
        Re: Improving the performance of system boot by eliding unused rc.d scripts and caching the result Jason Thorpe <thorpej@me.com> - 2026-08-18 06:58 -0700
        Re: Improving the performance of system boot by eliding unused rc.d scripts and caching the result David Holland <dholland-tech@netbsd.org> - 2026-08-19 04:33 +0000
          barrier scripts (was: Improving the performance of system boot by eliding unused rc.d scripts and caching the result) Edgar Fuß <ef@math.uni-bonn.de> - 2026-08-19 11:20 +0200
          Re: Improving the performance of system boot by eliding unused rc.d scripts and caching the result Greg Troxel <gdt@lexort.com> - 2026-08-19 06:43 -0400
            Re: Improving the performance of system boot by eliding unused rc.d scripts and caching the result Jason Thorpe <thorpej@me.com> - 2026-08-19 06:16 -0700
            Re: Improving the performance of system boot by eliding unused rc.d scripts and caching the result David Holland <dholland-tech@netbsd.org> - 2026-08-20 16:03 +0000
              Re: Improving the performance of system boot by eliding unused rc.d scripts and caching the result Greg Troxel <gdt@lexort.com> - 2026-08-20 12:35 -0400
                Re: Improving the performance of system boot by eliding unused rc.d scripts and caching the result Jason Thorpe <thorpej@me.com> - 2026-08-20 09:51 -0700
                Re: Improving the performance of system boot by eliding unused rc.d scripts and caching the result David Holland <dholland-tech@netbsd.org> - 2026-08-20 21:09 +0000
          Re: Improving the performance of system boot by eliding unused rc.d scripts and caching the result "Simon J. Gerraty" <sjg@crufty.net> - 2026-08-19 14:07 -0700
      Re: Improving the performance of system boot by eliding unused rc.d scripts and caching the result Greg Troxel <gdt@lexort.com> - 2026-08-19 07:07 -0400
        Re: Improving the performance of system boot by eliding unused rc.d scripts and caching the result Jason Thorpe <thorpej@me.com> - 2026-08-19 08:47 -0700
          Re: Improving the performance of system boot by eliding unused rc.d scripts and caching the result Robert Elz <kre@munnari.OZ.AU> - 2026-08-20 10:43 +0700
            Re: Improving the performance of system boot by eliding unused rc.d scripts and caching the result Jason Thorpe <thorpej@me.com> - 2026-08-19 23:27 -0700
              Re: Improving the performance of system boot by eliding unused rc.d scripts and caching the result Robert Elz <kre@munnari.OZ.AU> - 2026-08-21 04:37 +0700
            Re: Improving the performance of system boot by eliding unused rc.d scripts and caching the result Edgar Fuß <ef@math.uni-bonn.de> - 2026-08-20 10:12 +0200
              Re: Improving the performance of system boot by eliding unused rc.d scripts and caching the result Jason Thorpe <thorpej@me.com> - 2026-08-20 06:40 -0700
            Re: Improving the performance of system boot by eliding unused rc.d scripts and caching the result Valery Ushakov <uwe@stderr.spb.ru> - 2026-08-20 12:38 +0300
              Re: Improving the performance of system boot by eliding unused rc.d scripts and caching the result Robert Elz <kre@munnari.OZ.AU> - 2026-08-21 02:17 +0700
    Re: Improving the performance of system boot by eliding unused rc.d scripts and caching the result Martin Neitzel <neitzel@hackett.marshlabs.gaertner.de> - 2026-08-21 01:38 +0200
  Re: Improving the performance of system boot by eliding unused rc.d scripts and caching the result Robert Elz <kre@munnari.OZ.AU> - 2026-08-19 02:07 +0700
    "good" editors [was Re: Improving the performance of system boot by eliding unused rc.d scripts and caching the result] Mouse <mouse@Rodents-Montreal.ORG> - 2026-08-18 15:19 -0400
    Re: Improving the performance of system boot by eliding unused rc.d scripts and caching the result Jason Thorpe <thorpej@me.com> - 2026-08-18 14:24 -0700
      Re: Improving the performance of system boot by eliding unused rc.d scripts and caching the result Robert Elz <kre@munnari.OZ.AU> - 2026-08-19 08:08 +0700
        shell quoting (was: Improving the performance of system boot by eliding unused rc.d scripts and caching the result) Edgar Fuß <ef@math.uni-bonn.de> - 2026-08-19 11:17 +0200
          Re: shell quoting (was: Improving the performance of system boot by eliding unused rc.d scripts and caching the result) David Holland <dholland-tech@netbsd.org> - 2026-08-20 16:16 +0000
            Re: shell quoting (was: Improving the performance of system boot by eliding unused rc.d scripts and caching the result) Ken Hornstein <kenh@pobox.com> - 2026-08-20 12:36 -0400
          Re: shell quoting (was: Improving the performance of system boot by eliding unused rc.d scripts and caching the result) Robert Elz <kre@munnari.OZ.AU> - 2026-08-21 12:37 +0700
            Re: shell quoting Jarle Greipsland <jarle.greipsland@norid.no> - 2026-09-09 08:36 +0200
              Re: shell quoting Edgar Fuß <ef@math.uni-bonn.de> - 2026-09-09 10:28 +0200
                Re: shell quoting Robert Elz <kre@munnari.OZ.AU> - 2026-09-09 18:42 +0700
                Re: shell quoting Edgar Fuß <ef@math.uni-bonn.de> - 2026-09-09 14:42 +0200
                Re: shell quoting kre@munnari.OZ.AU - 2026-09-09 20:03 +0700
                Re: shell quoting Robert Elz <kre@munnari.OZ.AU> - 2026-09-09 20:21 +0700
              Re: shell quoting Robert Elz <kre@munnari.OZ.AU> - 2026-09-09 18:36 +0700
                Re: shell quoting Edgar Fuß <ef@math.uni-bonn.de> - 2026-09-09 17:28 +0200
                Re: shell quoting Edgar Fuß <ef@math.uni-bonn.de> - 2026-09-09 17:31 +0200
                Re: shell quoting Robert Elz <kre@munnari.OZ.AU> - 2026-09-10 08:12 +0700
                Re: shell quoting Mouse <mouse@Rodents-Montreal.ORG> - 2026-09-09 21:38 -0400
                Re: shell quoting Robert Elz <kre@munnari.OZ.AU> - 2026-09-10 10:10 +0700
                Re: shell quoting Jarle Greipsland <jarle.greipsland@norid.no> - 2026-09-09 18:56 +0200
                Re: shell quoting Robert Elz <kre@munnari.OZ.AU> - 2026-09-10 08:51 +0700

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