Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC?

From	The Natural Philosopher <tnp@invalid.invalid>
Newsgroups	comp.os.linux.misc
Subject	Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC?
Date	2021-09-08 13:06 +0100
Organization	A little, after lunch
Message-ID	<sha900$ooa$1@dont-email.me> (permalink)
References	(17 earlier) <sh759c$592$1@dont-email.me> <EMydnUn6a49c1qX8nZ2dnUU7-KPNnZ2d@earthlink.com> <87o8938q6k.fsf@LkoBDZeT.terraraq.uk> <sha1ec$5h4$1@dont-email.me> <87czpj8gnr.fsf@LkoBDZeT.terraraq.uk>

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On 08/09/2021 12:12, Richard Kettlewell wrote:
> The Natural Philosopher <tnp@invalid.invalid> writes:
>> On 08/09/2021 08:46, Richard Kettlewell wrote:
>>> SevenOverSix <hae274c.net> writes:
>>>> On 9/7/21 3:44 AM, The Natural Philosopher wrote:
>>>>> Give me *some* credit for knowing how to code a multitasker and in
>>>>> interrupt service routine
>>>>
>>>>     Oh, I'll give due credit. Your code IS a good byte-saver.
>>>>     However I've always had a good sense of how bits of code
>>>>     can go wrong. You code is perfectly good - but within a
>>>>     certain context/environment. As I said, WHICH stack are
>>>>     you popping from ?
>>>
>>> TNP’s space optimization doesn’t affect the meaning of the code. POP
>>> uses the same SP regardless of where the instruction is located. You are
>>> talking nonsense.
>>>
>> Thanks Richard.
>>
>> On the matter of caching, It's been bothering me...surely even if the
>> instruction set is cached, a JMP instruction still takes time, or has
>> the processor simply 'cut and pasted' the instruction block into the
>> pipeline and elided the JMP altogether?
> 
> Suppose you have many consecutive functions with the common tail, and
> you execute all of them once.
> 
> For each of those functions, the object code of the function must be
> loaded from main memory into cache. The number of loads from main memory
> is proportional to the sum of the sizes of the functions.
> 
> Now suppose all but one of the functions have that tail replaced by a
> JMP to the first function’s version.
> 
> They do indeed incur a small extra cost for the JMP, but after the first
> of them has executed, and _if_ the reduced size means you’ve reduced the
> total amount of code that must be read, the number of loads from main
> memory is reduced.
> 
> Loads from main memory are incredibly slow compared to executing single
> instructions - think 10x or 100x as long. The extra cost of the JMP is
> lost in the noise.
> 
> This is a very simple model; in reality you won’t notice the
> sub-microsecond savings from eliminating a handful of memory reads.  The
> real benefit comes when the space optimization squeezes the working set
> of a long-running program down from a bit bigger than the total cache
> size to a bit smaller.
> 
> The effect scales: if you can reduce the number of memory pages your
> program takes, you reduce the number of disk reads, and those are
> even slower.
> 
Thanks. That makes it clear.  So in fact lots of very small often used 
subroutines might be faster than inline coding?

Rather counter intuitive, that.

-- 
When plunder becomes a way of life for a group of men in a society, over 
the course of time they create for themselves a legal system that 
authorizes it and a moral code that glorifies it.

  Frédéric Bastiat

Thread

Is Debian still good for GUI stuff in an over 12 yrs. old PC? ant@zimage.comANT (Ant) - 2021-08-30 18:22 -0500
  Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Roger Blake <rogblake@iname.invalid> - 2021-08-31 00:14 +0000
  Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Bobbie Sellers <bliss@mouse-potato.com> - 2021-08-30 17:57 -0700
  Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? The Natural Philosopher <tnp@invalid.invalid> - 2021-08-31 04:39 +0100
    Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Joerg Lorenz <hugybear@gmx.ch> - 2021-08-31 15:19 +0200
      Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? The Natural Philosopher <tnp@invalid.invalid> - 2021-08-31 14:34 +0100
        Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Joerg Lorenz <hugybear@gmx.ch> - 2021-08-31 16:16 +0200
          Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? The Natural Philosopher <tnp@invalid.invalid> - 2021-08-31 15:47 +0100
            Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Joerg Lorenz <hugybear@gmx.ch> - 2021-08-31 18:54 +0200
              Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? The Natural Philosopher <tnp@invalid.invalid> - 2021-08-31 17:59 +0100
              Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Bobbie Sellers <bliss@mouse-potato.com> - 2021-08-31 11:52 -0700
              Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2021-09-01 04:21 +0000
  Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? SixOverFive <hae274c.net> - 2021-08-31 01:07 -0400
    Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Marc Haber <mh+usenetspam1118@zugschl.us> - 2021-08-31 11:01 +0200
      Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? SixOverFive <hae274c.net> - 2021-08-31 11:01 -0400
        Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Marc Haber <mh+usenetspam1118@zugschl.us> - 2021-09-01 11:07 +0200
          Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Andreas Kohlbach <ank@spamfence.net> - 2021-09-01 07:55 -0400
            Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? The Natural Philosopher <tnp@invalid.invalid> - 2021-09-01 13:10 +0100
              Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? SixOverFive <hae274c.net> - 2021-09-01 23:58 -0400
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? "Carlos E. R." <robin_listas@es.invalid> - 2021-09-02 13:04 +0200
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? SixOverFive <hae274c.net> - 2021-09-03 01:56 -0400
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Marc Haber <mh+usenetspam1118@zugschl.us> - 2021-09-03 08:44 +0200
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? "Carlos E. R." <robin_listas@es.invalid> - 2021-09-03 11:22 +0200
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? SixOverFive <hae274c.net> - 2021-09-04 00:31 -0400
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Marc Haber <mh+usenetspam1118@zugschl.us> - 2021-09-04 10:56 +0200
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Joerg Lorenz <hugybear@gmx.ch> - 2021-09-04 11:44 +0200
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Bobbie Sellers <bliss@mouse-potato.com> - 2021-09-04 08:04 -0700
                OT Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Rinaldi <rm@nunya.inv> - 2021-09-04 10:28 -0500
                Re: OT Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Bobbie Sellers <bliss@mouse-potato.com> - 2021-09-04 08:41 -0700
                Re: OT Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? The Natural Philosopher <tnp@invalid.invalid> - 2021-09-04 18:33 +0100
                Re: OT Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? SixOverFive <hae274c.net> - 2021-09-05 00:53 -0400
                Re: OT Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Joerg Lorenz <hugybear@gmx.ch> - 2021-09-05 08:57 +0200
                Re: OT Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Andreas Kohlbach <ank@spamfence.net> - 2021-09-05 12:12 -0400
                Re: OT Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? SixOverFive <hae274c.net> - 2021-09-05 20:01 -0400
                Re: OT Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Bobbie Sellers <bliss@mouse-potato.com> - 2021-09-04 08:42 -0700
                Re: OT Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Bobbie Sellers <bliss@mouse-potato.com> - 2021-09-04 08:45 -0700
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? The Natural Philosopher <tnp@invalid.invalid> - 2021-09-04 18:32 +0100
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Andreas Kohlbach <ank@spamfence.net> - 2021-09-03 19:51 -0400
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? SixOverFive <hae274c.net> - 2021-09-03 23:48 -0400
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Richard Kettlewell <invalid@invalid.invalid> - 2021-09-04 08:44 +0100
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? SixOverFive <hae274c.net> - 2021-09-05 00:07 -0400
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Richard Kettlewell <invalid@invalid.invalid> - 2021-09-05 08:16 +0100
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? The Natural Philosopher <tnp@invalid.invalid> - 2021-09-05 09:36 +0100
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Richard Kettlewell <invalid@invalid.invalid> - 2021-09-05 12:50 +0100
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Dan Espen <dan1espen@gmail.com> - 2021-09-05 09:33 -0400
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? "Carlos E. R." <robin_listas@es.invalid> - 2021-09-04 11:22 +0200
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Joerg Lorenz <hugybear@gmx.ch> - 2021-09-04 11:46 +0200
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Stéphane CARPENTIER <sc@fiat-linux.fr> - 2021-09-04 17:47 +0000
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? The Natural Philosopher <tnp@invalid.invalid> - 2021-09-05 09:35 +0100
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? SixOverFive <hae274c.net> - 2021-09-05 19:34 -0400
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? "Carlos E. R." <robin_listas@es.invalid> - 2021-09-06 02:14 +0200
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? The Natural Philosopher <tnp@invalid.invalid> - 2021-09-06 08:43 +0100
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? The Natural Philosopher <tnp@invalid.invalid> - 2021-09-06 08:45 +0100
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? SevenOverSix <hae274c.net> - 2021-09-07 01:54 -0400
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? The Natural Philosopher <tnp@invalid.invalid> - 2021-09-07 08:44 +0100
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? SevenOverSix <hae274c.net> - 2021-09-08 01:36 -0400
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? The Natural Philosopher <tnp@invalid.invalid> - 2021-09-08 07:46 +0100
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? SevenOverSix <hae274c.net> - 2021-09-09 01:53 -0400
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? The Natural Philosopher <tnp@invalid.invalid> - 2021-09-09 07:41 +0100
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? SevenOverSix <hae274c.net> - 2021-09-10 01:52 -0400
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Richard Kettlewell <invalid@invalid.invalid> - 2021-09-08 08:46 +0100
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? The Natural Philosopher <tnp@invalid.invalid> - 2021-09-08 10:57 +0100
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Richard Kettlewell <invalid@invalid.invalid> - 2021-09-08 12:12 +0100
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? The Natural Philosopher <tnp@invalid.invalid> - 2021-09-08 13:06 +0100
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Richard Kettlewell <invalid@invalid.invalid> - 2021-09-08 13:29 +0100
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2021-09-08 14:17 +0300
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? SevenOverSix <hae274c.net> - 2021-09-09 02:04 -0400
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? The Natural Philosopher <tnp@invalid.invalid> - 2021-09-09 07:46 +0100
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? SevenOverSix <hae274c.net> - 2021-09-10 02:51 -0400
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Richard Kettlewell <invalid@invalid.invalid> - 2021-09-10 09:49 +0100
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? SevenOverSix <hae274c.net> - 2021-09-11 02:03 -0400
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? The Natural Philosopher <tnp@invalid.invalid> - 2021-09-11 07:19 +0100
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Richard Kettlewell <invalid@invalid.invalid> - 2021-09-11 08:32 +0100
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? SevenOverSix <hae274c.net> - 2021-09-12 00:17 -0400
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Richard Kettlewell <invalid@invalid.invalid> - 2021-09-12 09:09 +0100
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? SevenOverSix <hae274c.net> - 2021-09-12 23:43 -0400
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? The Natural Philosopher <tnp@invalid.invalid> - 2021-09-12 11:33 +0100
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2021-09-06 11:08 +0300
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? The Natural Philosopher <tnp@invalid.invalid> - 2021-09-06 09:24 +0100
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2021-09-06 12:38 +0300
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? The Natural Philosopher <tnp@invalid.invalid> - 2021-09-06 12:21 +0100
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? SevenOverSix <hae274c.net> - 2021-09-07 02:20 -0400
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Richard Kettlewell <invalid@invalid.invalid> - 2021-09-06 11:39 +0100
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? The Natural Philosopher <tnp@invalid.invalid> - 2021-09-06 12:22 +0100
              Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Marc Haber <mh+usenetspam1118@zugschl.us> - 2021-09-02 09:29 +0200
                Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? The Natural Philosopher <tnp@invalid.invalid> - 2021-09-02 09:48 +0100
          Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? SixOverFive <hae274c.net> - 2021-09-01 23:32 -0400
            Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Marc Haber <mh+usenetspam1118@zugschl.us> - 2021-09-02 09:30 +0200
              Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? SixOverFive <hae274c.net> - 2021-09-03 00:04 -0400
            Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Stéphane CARPENTIER <sc@fiat-linux.fr> - 2021-09-04 17:58 +0000
              Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? SixOverFive <hae274c.net> - 2021-09-05 00:22 -0400
  Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Marc Haber <mh+usenetspam1118@zugschl.us> - 2021-08-31 10:59 +0200
    Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? The Natural Philosopher <tnp@invalid.invalid> - 2021-08-31 10:46 +0100
      Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? The Natural Philosopher <tnp@invalid.invalid> - 2021-08-31 10:50 +0100
        Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? The Natural Philosopher <tnp@invalid.invalid> - 2021-08-31 10:57 +0100
      Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Marc Haber <mh+usenetspam1118@zugschl.us> - 2021-09-01 11:09 +0200
        Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? The Natural Philosopher <tnp@invalid.invalid> - 2021-09-01 10:42 +0100
          Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? "Carlos E. R." <robin_listas@es.invalid> - 2021-09-01 13:47 +0200
            Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Stéphane CARPENTIER <sc@fiat-linux.fr> - 2021-09-04 18:09 +0000
  Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Andreas Kohlbach <ank@spamfence.net> - 2021-08-31 06:04 -0400
    Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? The Natural Philosopher <tnp@invalid.invalid> - 2021-08-31 11:42 +0100
  Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? TJ <TJ@noneofyour.business> - 2021-09-14 22:42 -0400
    Re: Is Debian still good for GUI stuff in an over 12 yrs. old PC? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2021-09-16 08:02 +0000

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