From: Rob Pike <robpike@gmail.com>
To: Ed Carp <erc@pobox.com>
Cc: TUHS main list <tuhs@minnie.tuhs.org>
Subject: Re: [TUHS] more about Brian...
Date: Sun, 6 Feb 2022 17:27:50 +1100 [thread overview]
Message-ID: <CAKzdPgxQmB8ikjQwExOVnOwGDQrc-N==qzf=ZwhH7Ut-fD6pCg@mail.gmail.com> (raw)
In-Reply-To: <CACYmRNDzrSvbwnAEAVz=REsdqSs675_pkBhi5dm5iWRCwRVo=A@mail.gmail.com>
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I don't understand your disagreement. In what way is automatic memory
management harder, more unsafe, and less robust than hand-written memory
management using malloc and free?
You seem to think that garbage collection only exists in languages that
have a smell you don't like. Perhaps that's true, but it's been around for
60 or more years and a lot of important languages use it, while the
programmers that use those languages are often quite capable.
Using malloc and free might be a badge of honor to some, but it's also a
failure of automation.
This discussion should probably go to COFF, or perhaps I should just leave
the list. I am starting to feel uncomfortable here. Too much swagger.
-rob
On Sun, Feb 6, 2022 at 5:19 PM Ed Carp <erc@pobox.com> wrote:
> "it's a lot easier, safer, and robust to let the machine do the memory
> accounting"
>
> I disagree. "The machine" is, as you know, is in reality app code
> built on top of frameworks built on top of libraries built on top of
> more libraries built on top of malloc/free calls. While the automated
> testing tools are a lot better than they were when I started coding C
> back in 1985, we're still talking about a *lot* of complexity and a
> lot of layers of code, and programmers today know far less about
> things like boundary conditions, off-by-one bugs, and the like that
> bit us in the ass - hard - and so we learned to watch for those sorts
> of things.
>
> On 2/5/22, Rob Pike <robpike@gmail.com> wrote:
> > Be careful with your castigations. Yes, there is lots of old working
> code,
> > but keep in mind that that code has often not been as widely tested and
> > deployed as much of the software that runs today. The fact that it worked
> > well on old hardware doesn't mean it will be suitable for modern
> networked
> > remotely administered multicore machines pounded on by millions of
> people.
> >
> > And speaking of multicore, it's possible to write code using malloc/free
> > that doesn't leak when run concurrently, but it's a lot easier, safer,
> and
> > robust to let the machine do the memory accounting. And the fact that
> "kids
> > today" can't do it doesn't mean they are lazy or failures, it means they
> > grew up in a different time. And a lot of them are as capable as you all,
> > just in a different environment.
> >
> > Lately this list has a lot of attitude and prejudice pretending to be
> > wisdom and superiority.
> >
> > -rob
> >
> >
> > On Sun, Feb 6, 2022 at 12:11 PM Will Senn <will.senn@gmail.com> wrote:
> >
> >> On 2/5/22 6:56 PM, Larry McVoy wrote:
> >>
> >> On Fri, Feb 04, 2022 at 09:28:10PM +0100, Hellwig Geisse wrote:
> >>
> >> Hi Thomas,
> >>
> >> On Fr, 2022-02-04 at 20:45 +0100, Thomas Paulsen wrote:
> >>
> >> I tell you one thing: I never ever experienced any problems with
> >> traditional malloc()/free().??
> >>
> >> did you ever write a program which does heavy malloc()/free()
> >> on complicated (i.e., shared) data structures *and* runs for
> >> days, perhaps weeks? IMO it's very difficult to do this without
> >> a GC, and you have to exercise quite an amount of discipline
> >> to do it right.
> >>
> >> I've done this and I've employed people who have done this. We're
> >> a dieing breed, the focus seems to be on programming languages and
> >> tools for idiots. People don't want to learn the discipline it takes
> >> to work with malloc()/free(). It's sad.
> >>
> >>
> >> I completely agree. This is ridiculous. Do modern programmer's seriously
> >> think that the old code wasn't complex or robust? Sheesh, there's code
> >> out
> >> there that has run through more millions of transactions an hour for
> more
> >> years than most of these folks have been alive. There's also code that's
> >> been running without any updates, for decades. Most code written by the
> >> newbreed won't run for a month without surfacing dozens of bugs.
> Margaret
> >> Hamilton would prolly have some choice words for these folks.
> >>
> >>
> >>
> >
>
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next prev parent reply other threads:[~2022-02-06 6:28 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-31 20:46 [TUHS] ratfor vibe Will Senn
2022-02-01 15:37 ` arnold
2022-02-01 15:52 ` Ralph Corderoy
2022-02-01 16:58 ` Clem Cole
2022-02-01 17:02 ` silas poulson
2022-02-02 7:47 ` arnold
2022-02-03 5:47 ` [TUHS] more about Brian Rich Morin
2022-02-03 7:44 ` markus schnalke
2022-02-03 8:18 ` Rich Morin
2022-02-04 2:23 ` Adam Thornton
2022-02-04 2:34 ` [TUHS] more about Brian... [really Rust] Jon Steinhart
2022-02-04 13:07 ` Thomas Paulsen
2022-02-04 23:18 ` Dan Cross
2022-02-04 3:28 ` [TUHS] more about Brian Dan Stromberg
2022-02-04 5:11 ` Rich Morin
2022-02-04 21:22 ` [TUHS] Go vs. Rust, and etc. (was: more about Brian...) Greg A. Woods
2022-02-04 21:37 ` Richard Salz
2022-02-04 22:32 ` Steffen Nurpmeso
2022-02-04 23:05 ` Thomas Paulsen
2022-02-04 23:15 ` Seth J. Morabito
2022-02-05 1:41 ` Adam Thornton
2022-02-04 7:38 ` [TUHS] more about Brian Andy Kosela
2022-02-04 8:10 ` Steve Nickolas
2022-02-04 8:44 ` markus schnalke
2022-02-04 9:16 ` Steve Nickolas
2022-02-04 18:54 ` John Cowan
2022-02-04 19:45 ` Thomas Paulsen
2022-02-04 20:28 ` Hellwig Geisse
2022-02-04 21:03 ` Jim Capp
2022-02-04 22:30 ` Steffen Nurpmeso
2022-02-04 22:25 ` Steffen Nurpmeso
2022-02-06 0:56 ` Larry McVoy
2022-02-06 1:10 ` Will Senn
2022-02-06 4:52 ` Rob Pike
2022-02-06 4:58 ` Dan Halbert
2022-02-06 5:06 ` Will Senn
2022-02-06 6:19 ` Ed Carp
2022-02-06 6:27 ` Rob Pike [this message]
2022-02-06 6:40 ` Stuart Remphrey
2022-02-06 6:44 ` Bakul Shah
2022-02-06 19:08 ` Steffen Nurpmeso
2022-02-06 12:52 ` Ralph Corderoy
2022-02-06 13:14 ` Ed Carp
2022-02-06 14:13 ` Dan Cross
2022-02-06 14:15 ` Larry McVoy
2022-02-06 16:31 ` Warner Losh
2022-02-06 18:36 ` [TUHS] more about Brian... [ really GC vs malloc/free languages ] Jon Steinhart
2022-02-06 19:27 ` Jon Steinhart
2022-02-06 19:33 ` Warner Losh
2022-02-06 19:37 ` Jon Steinhart
2022-02-06 20:21 ` [TUHS] COFF is over there Ralph Corderoy
2022-02-06 16:16 ` [TUHS] more about Brian Brad Spencer
2022-02-08 5:22 ` Ed Carp
2022-02-03 18:57 ` [TUHS] ratfor vibe silas poulson
2022-02-04 8:26 ` arnold
2022-02-04 19:41 ` John Cowan
2022-02-10 15:18 ` Ralph Corderoy
2022-02-03 4:00 ` Will Senn
2022-02-03 4:31 ` Al Kossow
2022-02-03 5:16 ` Warner Losh
2022-02-03 20:00 ` Adam Thornton
2022-02-04 6:06 ` Ori Idan
2022-02-04 17:35 ` Adam Thornton
2022-02-04 17:44 ` Will Senn
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