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Re: Linux offers choice, BSD offers fragmentation

Path csiph.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail
From "Carlos E. R." <robin_listas@es.invalid>
Newsgroups comp.os.linux.misc
Subject Re: Linux offers choice, BSD offers fragmentation
Date Fri, 9 Oct 2026 23:27:35 +0200
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On 2026-10-09 23:20, Lawrence D’Oliveiro wrote:
> On Fri, 9 Oct 2026 20:47:45 +0200, Carlos E. R. spouted more AI slop:
> 
>> I asked chatgpt (as a glorified documentation search engine):
> 
> A search engine gives references.

So does the AI, but you need to do another operation to collect them.

> 
>> Some SSDs have a dedicated DRAM chip, typically hundreds of
>> megabytes to several gigabytes in larger drives. It is volatile
>> memory, just like your computer's RAM.
>>
>> It is primarily used to store the SSD's internal mapping tables,
>> which translate logical block addresses into physical NAND flash
>> locations.
> 
> This is what an OS filesystem cache does, too. So now you’re going
> through *two* layers between the application and its data: the OS
> filesystem implementation itself, plus an additional filesystem-like
> layer within the drive. All that is extra overhead.
> 
>> One final distinction: a write cache can improve write speed by
>> temporarily accepting data before it is fully committed to NAND.
>> That is a separate issue from the read behavior discussed here.
> 
> Also one that doesn’t actually work, unless your OS filesystem cache
> is useless.


-- 
Cheers,
        Carlos E.R.
        ES🇪🇸, EU🇪🇺.

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Thread

Linux needs less fragmentation Lars Poulsen <lars@beagle-ears.com> - 2026-10-04 14:08 -0700
  Re: Linux needs less fragmentation Michael Logies <logies@t-online.de> - 2026-10-04 23:33 +0200
    Re: Linux needs less fragmentation The Natural Philosopher <tnp@invalid.invalid> - 2026-10-05 09:20 +0100
  Re: Linux needs less fragmentation Leroy H <lh@somewhere.net> - 2026-10-04 21:44 +0000
  Re: Linux needs less fragmentation rbowman <bowman@montana.com> - 2026-10-05 01:53 +0000
    Re: Linux needs less fragmentation c186282 <c186282@nnada.net> - 2026-10-05 03:14 -0400
      Re: Linux needs less fragmentation The Natural Philosopher <tnp@invalid.invalid> - 2026-10-05 09:28 +0100
        Re: Linux needs less fragmentation "Carlos E. R." <robin_listas@es.invalid> - 2026-10-05 19:20 +0200
          Re: Linux needs less fragmentation The Natural Philosopher <tnp@invalid.invalid> - 2026-10-05 19:43 +0100
            Re: Linux needs less fragmentation Andy Burns <usenet@andyburns.uk> - 2026-10-08 15:25 +0100
              Re: Linux needs less fragmentation The Natural Philosopher <tnp@invalid.invalid> - 2026-10-08 15:29 +0100
              Re: Linux offers choice, BSD offers fragmentation Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-10-08 20:59 +0000
              Re: Linux needs less fragmentation c186282 <c186282@nnada.net> - 2026-10-09 02:42 -0400
              Re: Linux needs less fragmentation "Carlos E. R." <robin_listas@es.invalid> - 2026-10-09 20:47 +0200
                Re: Linux offers choice, BSD offers fragmentation Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-10-09 21:20 +0000
                Re: Linux offers choice, BSD offers fragmentation "Carlos E. R." <robin_listas@es.invalid> - 2026-10-09 23:27 +0200
                Re: Linux offers choice, BSD offers fragmentation c186282 <c186282@nnada.net> - 2026-10-10 04:01 -0400
                Re: Linux offers choice, BSD offers fragmentation c186282 <c186282@nnada.net> - 2026-10-11 04:31 -0400
        Re: Linux needs less fragmentation Rich <rich@example.invalid> - 2026-10-05 18:57 +0000
          Re: Linux needs less fragmentation The Natural Philosopher <tnp@invalid.invalid> - 2026-10-05 20:08 +0100
            Re: Linux needs less fragmentation Rich <rich@example.invalid> - 2026-10-05 20:18 +0000
              Re: Linux needs less fragmentation Richard Kettlewell <invalid@invalid.invalid> - 2026-10-06 08:34 +0100
                Re: Linux needs less fragmentation The Natural Philosopher <tnp@invalid.invalid> - 2026-10-06 11:17 +0100
                Re: Linux needs less fragmentation c186282 <c186282@nnada.net> - 2026-10-06 23:59 -0400
                Re: Linux needs less fragmentation rbowman <bowman@montana.com> - 2026-10-06 14:39 +0000
                Re: Linux needs less fragmentation Chris Ahlstrom <OFeem1987@teleworm.us> - 2026-10-06 13:50 -0400
    Re: Linux needs less fragmentation The Natural Philosopher <tnp@invalid.invalid> - 2026-10-05 09:25 +0100
      Re: Linux needs less fragmentation rbowman <bowman@montana.com> - 2026-10-05 19:36 +0000
        Re: Linux needs less fragmentation "Carlos E. R." <robin_listas@es.invalid> - 2026-10-05 21:49 +0200
          Re: Linux needs less fragmentation rbowman <bowman@montana.com> - 2026-10-06 02:35 +0000
          Re: Linux needs less fragmentation Philippe <p.naudin+nntp@free.fr> - 2026-10-06 08:13 +0200
            Re: Linux needs less fragmentation "Carlos E. R." <robin_listas@es.invalid> - 2026-10-06 11:12 +0200
              Re: Linux needs less fragmentation rbowman <bowman@montana.com> - 2026-10-06 14:48 +0000
  Re: Linux needs less fragmentation The Natural Philosopher <tnp@invalid.invalid> - 2026-10-05 09:19 +0100

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