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Groups > comp.os.linux.misc > #62626

Re: Are We Back to the "Wars" Now ?

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John Ames <commodorejohn@gmail.com> writes:
> Rich <rich@example.invalid> wrote:
>> Yes, our local nymshift troll seems to clearly not know what a pipe
>> is, nor care to learn either.
>
> I *think* what he's meaning to say is this: while you can transfer any
> arbitrary amount of data *through* a pipe, there is an upper limit to
> how much you can have *in* a pipe at any one time; eventually, you hit
> either *A.* an OS-imposed limit on buffer size, at which point things
> start blocking as already discussed, or *B.* the upper bounds of
> system memory, at which point the system will either start swapping
> (in which case you lose any speed advantage) or blocking (as with
> limited buffer size.)

That’s a very charitable interpretation, particularly given that the
reality of how pipes work has been described two or three times
recently.

> That said, what probably shouldn't need saying here is that if you're
> filling up all available space in a pipe such that you're regularly
> hitting these limits, you're probably doing pipes wrong.

Pipes have a capacity of, typically, a few kilobytes and when that
capacity is reached, writers block until readers drain them.

All this stuff about filling RAM or swapping is just nonsense.

-- 
https://www.greenend.org.uk/rjk/

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Re: Are We Back to the "Wars" Now ? rlhamil@smart.net (Richard L. Hamilton) - 2024-12-14 08:06 +0000
  Re: Are We Back to the "Wars" Now ? Pancho <Pancho.Jones@proton.me> - 2024-12-14 10:10 +0000
    Re: Are We Back to the "Wars" Now ? root <NoEMail@home.org> - 2024-12-14 15:54 +0000
      Re: Are We Back to the "Wars" Now ? The Natural Philosopher <tnp@invalid.invalid> - 2024-12-14 16:06 +0000
        Re: Are We Back to the "Wars" Now ? Geoff Clare <geoff@clare.See-My-Signature.invalid> - 2024-12-17 13:34 +0000
          Re: Are We Back to the "Wars" Now ? Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-12-18 01:23 +0000
            Re: Are We Back to the "Wars" Now ? "186282@ud0s4.net" <186283@ud0s4.net> - 2024-12-17 23:25 -0500
              Re: Are We Back to the "Wars" Now ? Rich <rich@example.invalid> - 2024-12-18 05:01 +0000
                Re: Are We Back to the "Wars" Now ? Robert Riches <spamtrap42@jacob21819.net> - 2024-12-18 05:12 +0000
                Re: Are We Back to the "Wars" Now ? Rich <rich@example.invalid> - 2024-12-18 14:03 +0000
                Re: Are We Back to the "Wars" Now ? Robert Riches <spamtrap42@jacob21819.net> - 2024-12-19 04:27 +0000
                Re: Are We Back to the "Wars" Now ? Rich <rich@example.invalid> - 2024-12-19 14:07 +0000
                Re: Are We Back to the "Wars" Now ? D <nospam@example.net> - 2024-12-19 16:02 +0100
                Re: Are We Back to the "Wars" Now ? Richard Kettlewell <invalid@invalid.invalid> - 2024-12-18 08:27 +0000
                Re: Are We Back to the "Wars" Now ? Rich <rich@example.invalid> - 2024-12-18 14:02 +0000
                Re: Are We Back to the "Wars" Now ? John Ames <commodorejohn@gmail.com> - 2024-12-18 08:11 -0800
                Re: Are We Back to the "Wars" Now ? Rich <rich@example.invalid> - 2024-12-18 16:51 +0000
                Re: Are We Back to the "Wars" Now ? Richard Kettlewell <invalid@invalid.invalid> - 2024-12-18 18:32 +0000

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