|Subject:||bug#32405: Turning misc objects into pseudovectors|
|Date:||Thu, 9 Aug 2018 00:16:55 -0700|
|User-agent:||Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1|
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.
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