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From: Paul Eggert <eggert@cs.ucla.edu>
To: Stefan Monnier <monnier@IRO.UMontreal.CA>
Cc: 32405@debbugs.gnu.org
Subject: bug#32405: Turning misc objects into pseudovectors
Date: Thu, 9 Aug 2018 00:16:55 -0700	[thread overview]
Message-ID: <dac7fbf7-db19-63e4-d1ec-baf9019dc419@cs.ucla.edu> (raw)
In-Reply-To: <89c3c3be-4c08-32c7-7ecf-8bae1aa78305@cs.ucla.edu>

Paul Eggert wrote:
> 
>> There is also a potential issue in terms of the resulting heap size of
>> markers (which may bump up from 6 words to 8 words, IIRC, unless your
>> patch does something to keep it down to 6)
> 
> On a 64-bit platform the heap size of markers does not grow. The old size is 6 
> words (sizeof (union aligned_Lisp_Misc) is 48), and the new size is also 6 words 
> (sizeof (struct Lisp_Marker) is also 48).

I should have written that these numbers are for x86-64 on Fedora 28. They might 
differ on other 64-bit platforms, due to alignment issues.





  reply	other threads:[~2018-08-09  7:16 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-08-09  2:58 bug#32405: [PATCH] Turn misc objects into pseudovectors Paul Eggert
2018-08-09  5:01 ` bug#32405: Turning " Paul Eggert
2018-08-09  7:16   ` Paul Eggert [this message]
2018-08-09 16:24   ` Stefan Monnier
2018-08-09  6:11 ` bug#32405: [PATCH] Turn " Pip Cet
2018-08-09  7:44   ` Paul Eggert
2018-08-10  2:01     ` Richard Stallman
2018-08-09 17:23 ` Andy Moreton
2018-08-09 17:53 ` Pip Cet
2018-08-09 18:10   ` Paul Eggert
2018-08-09 18:24 ` Paul Eggert
  -- strict thread matches above, loose matches on Subject: below --
2018-08-09  3:07 Turning " Paul Eggert
2018-08-09  3:58 ` bug#32405: " Stefan Monnier
2018-08-09 16:31 ` Tom Tromey
2018-08-09 17:22   ` bug#32405: " Paul Eggert
2018-08-09 18:27   ` Eli Zaretskii
2018-08-09 18:27   ` Eli Zaretskii
2018-08-10 13:43     ` Tom Tromey
2018-08-12  1:53       ` Paul Eggert
2018-08-12  1:53       ` Paul Eggert
2018-08-12 18:23         ` Eli Zaretskii
2018-08-12 18:48           ` Paul Eggert
2018-08-14 19:11         ` Paul Eggert
2018-08-10 13:43     ` Tom Tromey
2018-08-09 16:31 ` Tom Tromey

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