I'm using my python folder (a Maildir) because it is large enough to do
a little live debugging on. Summary header:
[email protected] reverse-threads/last-date 0% 1152M Msgs:140928 New:90812
Del:0 Flag:608 =python
I'm using a header cache, and my sort is reverse-threads/last-date.
Command line:
mutt -f ~/mail/python -e fcc-hook . ~/mail/python; save-hook .
~/mail/OLD/2022/python
(That's from ps; the `-e` argument is a single string of course.)
The stuff before the "Sorting mailbox..." phase seems ... fast enough.
During the "Sorting mailbox..." phase I see mutt reading message files
I'd not expect it to need to touch, _and_ making some temporary files.
Example `lsof` output:
mutt 1162 cameron 3r REG 1,5 8370 143651075
/Users/cameron/mail/python/cur/1626370570.#7159M542304P658:2,S
mutt 1162 cameron 4u REG 1,5 0 599663041
/Users/cameron/var/mutt/mutt-fleet2-lan-501-1162-13395134689776834598
That `cur` message file dates from 2021-07-15 17:36:10 GMT (long ago)
and the temporary file is indeed temporary - it vanishes. I speculate
that mutt's... unpacking the source message in some way?
I had expected that the sort would happen in memory using the header
cache to obtain values. ISTR that the header cache only caches
particular headers, but I can't see which in the docs and would have
imagined it at least caches the headers used to sort messages.
Thoughts?
I append the output of `mutt -v` below.
Cheers,
Cameron Simpson <[email protected]>
Mutt 2.2.7 (2022-08-07)
Copyright (C) 1996-2022 Michael R. Elkins and others.
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System: Darwin 19.6.0 (x86_64)
ncurses: ncurses 5.7.20081102 (compiled with 5.7)
libiconv: 1.11
hcache backend: tokyocabinet 1.4.48
Compiler:
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Target: x86_64-apple-darwin19.6.0
Thread model: posix
InstalledDir:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin
Configure options: --disable-dependency-tracking --disable-warnings
--prefix=/usr/local/Cellar/mutt/2.2.7 --enable-debug --enable-hcache
--enable-imap --enable-pop --enable-sidebar --enable-smtp --with-gss
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+DEBUG
-HOMESPOOL +USE_SETGID +USE_DOTLOCK +DL_STANDALONE +USE_FCNTL -USE_FLOCK
+USE_POP +USE_IMAP +USE_SMTP
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+CRYPT_BACKEND_CLASSIC_PGP +CRYPT_BACKEND_CLASSIC_SMIME +CRYPT_BACKEND_GPGME
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MAILPATH="/var/mail"
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SYSCONFDIR="/usr/local/Cellar/mutt/2.2.7/etc"
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