Groups > comp.lang.java.programmer > #28108

Re: compile directly into a .zip/.jar file?

From	Martin Gregorie <martin@address-in-sig.invalid>
Newsgroups	comp.lang.java.programmer
Subject	Re: compile directly into a .zip/.jar file?
Date	2014-04-16 19:33 +0000
Organization	A noiseless patient Spider
Message-ID	<limluk$h08$3@dont-email.me> (permalink)
References	(5 earlier) <lija0u$bte$1@dont-email.me> <534dc817$0$300$14726298@news.sunsite.dk> <lilt41$mth$1@dont-email.me> <lim623$nug$1@dont-email.me> <limcb0$924$1@dont-email.me>

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On Wed, 16 Apr 2014 12:45:54 -0400, Jeff Higgins wrote:

> On 04/16/2014 10:58 AM, Jeff Higgins wrote:
> 
>> as an adjunct to the manpages
> Schedule this. A memento for me.
> Kernel Korner - I/O Schedulers - Robert Love
> <http://www.linuxjournal.com/article/6931>

Hate to say this, but I was using a a box with a scheduler that was at 
least as good as the Anticipatory Scheduler way back in 1972 on an ICL 
1903S mainframe running the George 3 Mk 6 OS. 

George 3 used a similar directory structure to Unix/Linux. Its i/o 
scheduler was, however, quite a bit different. This maintained two i/o 
queues and a vector for each disk. The vector kept book on where the 
heads were and which direction they were travelling. One of the queues 
held requests for blocks that were 'in front' of the heads and the other 
queue held requests for blocks 'behind' the heads. Both queues were 
sorted. When the 'in front' queue was empty, the queues were swapped and 
the vector reversed, so in practise the heads floated smoothly back and 
forth across the disk while sounding like castenet dancer on speed and 
the i/o rate was much higher than earlier versions, without the i/o 
scheduler, or the manual UDAS executive could manage. 

This was pretty much in the dark ages: these were removable 60 MB, 14 
inch 20 surface 2800 rpm disks with an average 135 mS seek time. Running 
with the manual UDAS executive there was no i/o scheduler, so the heads 
banged randomly back and forth across the disk and you got 8-10 iops/sec 
if you were lucky, while George 3 with it's i/o scheduler could easily 
operate in the 25-35 iops/sec range.

-- 
martin@   | Martin Gregorie
gregorie. | Essex, UK
org       |

Thread

compile directly into a .zip/.jar file? Andreas Leitgeb <avl@auth.logic.tuwien.ac.at> - 2014-04-12 12:30 +0000
  Re: compile directly into a .zip/.jar file? Joerg Meier <joergmmeier@arcor.de> - 2014-04-12 15:02 +0200
    Re: compile directly into a .zip/.jar file? Roedy Green <see_website@mindprod.com.invalid> - 2014-04-12 19:56 -0700
      Re: compile directly into a .zip/.jar file? Andreas Leitgeb <avl@auth.logic.tuwien.ac.at> - 2014-04-13 15:29 +0000
    Re: compile directly into a .zip/.jar file? Andreas Leitgeb <avl@auth.logic.tuwien.ac.at> - 2014-04-13 15:19 +0000
      Re: compile directly into a .zip/.jar file? Roedy Green <see_website@mindprod.com.invalid> - 2014-04-13 17:35 -0700
    Re: compile directly into a .zip/.jar file? Arne Vajhøj <arne@vajhoej.dk> - 2014-04-13 13:53 -0400
      Re: compile directly into a .zip/.jar file? Andreas Leitgeb <avl@auth.logic.tuwien.ac.at> - 2014-04-13 22:21 +0000
        Re: compile directly into a .zip/.jar file? Arne Vajhøj <arne@vajhoej.dk> - 2014-04-13 18:40 -0400
    Re: compile directly into a .zip/.jar file? Arne Vajhøj <arne@vajhoej.dk> - 2014-04-13 14:04 -0400
      Re: compile directly into a .zip/.jar file? Andreas Leitgeb <avl@auth.logic.tuwien.ac.at> - 2014-04-13 22:52 +0000
        Re: compile directly into a .zip/.jar file? Arne Vajhøj <arne@vajhoej.dk> - 2014-04-14 21:41 -0400
          Re: compile directly into a .zip/.jar file? Martin Gregorie <martin@address-in-sig.invalid> - 2014-04-15 12:51 +0000
            Re: compile directly into a .zip/.jar file? Arne Vajhøj <arne@vajhoej.dk> - 2014-04-15 20:00 -0400
              Re: compile directly into a .zip/.jar file? Martin Gregorie <martin@address-in-sig.invalid> - 2014-04-16 12:29 +0000
                Re: compile directly into a .zip/.jar file? Jeff Higgins <jeff@invalid.invalid> - 2014-04-16 10:58 -0400
                Re: compile directly into a .zip/.jar file? Jeff Higgins <jeff@invalid.invalid> - 2014-04-16 12:45 -0400
                Re: compile directly into a .zip/.jar file? Martin Gregorie <martin@address-in-sig.invalid> - 2014-04-16 19:33 +0000
                Re: compile directly into a .zip/.jar file? Jeff Higgins <jeff@invalid.invalid> - 2014-04-16 15:48 -0400
                Re: compile directly into a .zip/.jar file? Eric Sosman <esosman@comcast-dot-net.invalid> - 2014-04-16 16:20 -0400
                Re: compile directly into a .zip/.jar file? Martin Gregorie <martin@address-in-sig.invalid> - 2014-04-16 22:31 +0000
                Re: compile directly into a .zip/.jar file? Martin Gregorie <martin@address-in-sig.invalid> - 2014-04-16 18:43 +0000
                Re: compile directly into a .zip/.jar file? Arne Vajhøj <arne@vajhoej.dk> - 2014-04-16 18:33 -0400
                Re: compile directly into a .zip/.jar file? Martin Gregorie <martin@address-in-sig.invalid> - 2014-04-17 12:58 +0000
  Re: compile directly into a .zip/.jar file? Roedy Green <see_website@mindprod.com.invalid> - 2014-04-12 19:54 -0700
    Re: compile directly into a .zip/.jar file? Andreas Leitgeb <avl@auth.logic.tuwien.ac.at> - 2014-04-13 16:08 +0000
  Re: compile directly into a .zip/.jar file? Martin Gregorie <martin@address-in-sig.invalid> - 2014-04-13 23:25 +0000
    Re: compile directly into a .zip/.jar file? Arne Vajhøj <arne@vajhoej.dk> - 2014-04-14 21:40 -0400
      Re: compile directly into a .zip/.jar file? Martin Gregorie <martin@address-in-sig.invalid> - 2014-04-15 13:38 +0000
        Re: compile directly into a .zip/.jar file? Arne Vajhøj <arne@vajhoej.dk> - 2014-04-15 19:49 -0400
          Re: compile directly into a .zip/.jar file? Martin Gregorie <martin@address-in-sig.invalid> - 2014-04-16 12:38 +0000
  Re: compile directly into a .zip/.jar file? Roedy Green <see_website@mindprod.com.invalid> - 2014-04-13 17:38 -0700

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