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Re: Loading tramp for dump goes into infinite regress

From: Po Lu
Subject: Re: Loading tramp for dump goes into infinite regress
Date: Tue, 09 Aug 2022 20:36:04 +0800
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.91 (gnu/linux)

Lynn Winebarger <owinebar@gmail.com> writes:

> The second statement was comparing dumped versus undumped performance,
> whether native- or byte- compiled.  This isn't a novel observation,
> but the dump is basically a one-shot mark-compact GC collection, and
> the mmap'ed pdump files would ideally be treated like the old
> generation of a generational collector, and so not traced in most (or
> all) collection cycles.  This is (or should be) one benefit of pure
> space, although the requirement that it be read-only could be dropped
> as long as the write-barrier remains and is used to record any
> inter-generational pointers to a root set traced by the collector.

This (very) minor benefit of pure space is already gone, since it is
unprotected and scanned normally for garbage collection in pdumper

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