all messages for Emacs-related lists mirrored at yhetil.org
 help / color / mirror / code / Atom feed
From: Ihor Radchenko <yantar92@posteo.net>
To: Emanuel Berg <incal@dataswamp.org>
Cc: emacs-devel@gnu.org
Subject: Re: [PATCH] Re: Bignum performance (was: Shrinking the C core)
Date: Fri, 11 Aug 2023 19:41:22 +0000	[thread overview]
Message-ID: <87il9l1i59.fsf@localhost> (raw)
In-Reply-To: <87v8dlihc5.fsf@dataswamp.org>

Emanuel Berg <incal@dataswamp.org> writes:

>> And... is has been already done, actually.
>> allocate_vectorlike calls allocate_vector_from_block, which
>> re-uses pre-allocated objects.
>>
>> And looking into the call graph, this exact branch calling
>> allocate_vector_from_block is indeed called for the bignums [...]
>
> Are we talking a list of Emacs C functions executing with the
> corresponding times they have been in execution in a tree data
> structure? :O

That's what GNU perf does - it is a sampling profiler in GNU/Linux.
The Elisp equivalent is profiler.el, but it does not reveal underlying C
functions.

> E.g. where do we find allocate_vectorlike ?

I have listed the commands I used (from terminal):

1. perf record ~/Git/emacs/src/emacs -Q -batch -l /tmp/fib.eln
   <records CPU stats while running emacs>
2. perf report
   <displays the stats>

You need Emacs compiled with debug symbols the get meaningful output.

See more at https://www.brendangregg.com/perf.html

> See if you can do my original test, which was 1-3 Elisp,
> byte-compiled Elisp, and natively compiled Elisp, and the
> Common Lisp execution (on your computer), if you'd like.

As you wish:

$ ~/Git/emacs/src/emacs -Q -batch -l /tmp/fib.el    [5.783 s]
$ ~/Git/emacs/src/emacs -Q -batch -l /tmp/fib.elc   [1.961 s]
$ ~/Git/emacs/src/emacs -Q -batch -l /tmp/fib.eln   [1.901 s]
$ SBCL_HOME=/usr/lib64/sbcl sbcl --load /tmp/fib.cl [0.007 s]

without the patch (on my system)

$ ~/Git/emacs/src/emacs -Q -batch -l /tmp/fib.el    [6.546 s]
$ ~/Git/emacs/src/emacs -Q -batch -l /tmp/fib.elc   [2.498 s]
$ ~/Git/emacs/src/emacs -Q -batch -l /tmp/fib.eln   [2.518 s]


Also, the patch gives improvements for more than just bignums.
I ran elisp-benchmarks
(https://elpa.gnu.org/packages/elisp-benchmarks.html) and got


(before the patch)
  | test               | non-gc avg (s) | gc avg (s) | gcs avg | tot avg (s) | tot avg err (s) |
  |--------------------+----------------+------------+---------+-------------+-----------------|
  | bubble             |           0.70 |       0.06 |       1 |        0.76 |            0.07 |
  | bubble-no-cons     |           1.17 |       0.00 |       0 |        1.17 |            0.02 |
  | bytecomp           |           1.74 |       0.29 |      13 |        2.03 |            0.12 |
  | dhrystone          |           2.30 |       0.00 |       0 |        2.30 |            0.07 |
  | eieio              |           1.25 |       0.13 |       7 |        1.38 |            0.03 |
  | fibn               |           0.00 |       0.00 |       0 |        0.00 |            0.00 |
  | fibn-named-let     |           1.53 |       0.00 |       0 |        1.53 |            0.03 |
  | fibn-rec           |           0.00 |       0.00 |       0 |        0.00 |            0.00 |
  | fibn-tc            |           0.00 |       0.00 |       0 |        0.00 |            0.00 |
  | flet               |           1.48 |       0.00 |       0 |        1.48 |            0.04 |
  | inclist            |           1.07 |       0.00 |       0 |        1.07 |            0.02 |
  | inclist-type-hints |           1.00 |       0.00 |       0 |        1.00 |            0.07 |
  | listlen-tc         |           0.13 |       0.00 |       0 |        0.13 |            0.03 |
  | map-closure        |           5.26 |       0.00 |       0 |        5.26 |            0.09 |
  | nbody              |           1.61 |       0.17 |       1 |        1.78 |            0.06 |
  | pack-unpack        |           0.31 |       0.02 |       1 |        0.33 |            0.00 |
  | pack-unpack-old    |           0.50 |       0.05 |       3 |        0.55 |            0.02 |
  | pcase              |           1.85 |       0.00 |       0 |        1.85 |            0.05 |
  | pidigits           |           4.41 |       0.96 |      17 |        5.37 |            0.13 |
  | scroll             |           0.64 |       0.00 |       0 |        0.64 |            0.01 |
  | smie               |           1.59 |       0.04 |       2 |        1.63 |            0.03 |
  |--------------------+----------------+------------+---------+-------------+-----------------|
  | total              |          28.54 |       1.72 |      45 |       30.26 |            0.26 |


(after the patch)
  | test               | non-gc avg (s) | gc avg (s) | gcs avg | tot avg (s) | tot avg err (s) |
  |--------------------+----------------+------------+---------+-------------+-----------------|
  | bubble             |           0.68 |       0.05 |       1 |        0.73 |            0.04 |
  | bubble-no-cons     |           1.00 |       0.00 |       0 |        1.00 |            0.04 |
  | bytecomp           |           1.60 |       0.23 |      13 |        1.82 |            0.16 |
  | dhrystone          |           2.03 |       0.00 |       0 |        2.03 |            0.05 |
  | eieio              |           1.08 |       0.12 |       7 |        1.20 |            0.07 |
  | fibn               |           0.00 |       0.00 |       0 |        0.00 |            0.00 |
  | fibn-named-let     |           1.44 |       0.00 |       0 |        1.44 |            0.12 |
  | fibn-rec           |           0.00 |       0.00 |       0 |        0.00 |            0.00 |
  | fibn-tc            |           0.00 |       0.00 |       0 |        0.00 |            0.00 |
  | flet               |           1.36 |       0.00 |       0 |        1.36 |            0.09 |
  | inclist            |           1.00 |       0.00 |       0 |        1.00 |            0.00 |
  | inclist-type-hints |           1.00 |       0.00 |       0 |        1.00 |            0.07 |
  | listlen-tc         |           0.11 |       0.00 |       0 |        0.11 |            0.02 |
  | map-closure        |           4.91 |       0.00 |       0 |        4.91 |            0.12 |
  | nbody              |           1.47 |       0.17 |       1 |        1.64 |            0.08 |
  | pack-unpack        |           0.29 |       0.02 |       1 |        0.31 |            0.01 |
  | pack-unpack-old    |           0.43 |       0.05 |       3 |        0.48 |            0.01 |
  | pcase              |           1.84 |       0.00 |       0 |        1.84 |            0.07 |
  | pidigits           |           3.16 |       0.94 |      17 |        4.11 |            0.10 |
  | scroll             |           0.58 |       0.00 |       0 |        0.58 |            0.00 |
  | smie               |           1.40 |       0.04 |       2 |        1.44 |            0.06 |
  |--------------------+----------------+------------+---------+-------------+-----------------|
  | total              |          25.38 |       1.62 |      45 |       27.00 |            0.32 |

About ~10% improvement, with each individual benchmark being faster.

Note how fibn test takes 0.00 seconds. It is limited to fixnum range.

> Actually it is a bit of a bummer to the community since Emacs
> is like THE portal into Lisp. We should have the best Lisp in
> the business, and I don't see why not? Emacs + SBCL + CL +
> Elisp anyone?

This is a balancing act. Elisp is tailored for Emacs as an editor. So,
trade-offs are inevitable. I am skeptical about Elisp overperforming CL.
But it does not mean that we should not try to improve things.

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>



  reply	other threads:[~2023-08-11 19:41 UTC|newest]

Thread overview: 247+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-09  9:46 Shrinking the C core Eric S. Raymond
2023-08-09 10:55 ` Andreas Schwab
2023-08-09 11:03   ` Eric S. Raymond
2023-08-09 11:29     ` Andreas Schwab
2023-08-09 12:34 ` Po Lu
2023-08-09 15:51   ` Eric S. Raymond
2023-08-09 23:56     ` Po Lu
2023-08-10  1:19       ` Eric S. Raymond
2023-08-10  1:47         ` Christopher Dimech
2023-08-10  1:58         ` Eric Frederickson
2023-08-10  2:07           ` Sam James
2023-08-10  2:44             ` Po Lu
2023-08-10  6:48             ` Eli Zaretskii
2023-08-10 21:21               ` Eric S. Raymond
2023-08-10 21:19             ` Eric S. Raymond
2023-08-10 21:56               ` Emanuel Berg
2023-08-11  5:46               ` Eli Zaretskii
2023-08-11  8:45                 ` Emanuel Berg
2023-08-11 11:24                   ` Eli Zaretskii
2023-08-11 12:12                     ` Emanuel Berg
2023-08-11 13:16                       ` Eli Zaretskii
2023-08-10  2:28         ` Po Lu
2023-08-10  4:15           ` Christopher Dimech
2023-08-10  7:44         ` Eli Zaretskii
2023-08-10 21:54           ` Emanuel Berg
2023-08-11 10:27             ` Bignum performance (was: Shrinking the C core) Ihor Radchenko
2023-08-11 12:10               ` Emanuel Berg
2023-08-11 12:32                 ` Ihor Radchenko
2023-08-11 12:38                   ` Emanuel Berg
2023-08-11 14:07                     ` [PATCH] " Ihor Radchenko
2023-08-11 18:06                       ` Emanuel Berg
2023-08-11 19:41                         ` Ihor Radchenko [this message]
2023-08-11 19:50                           ` Emanuel Berg
2023-08-12  8:24                             ` Ihor Radchenko
2023-08-12 16:03                               ` Emanuel Berg
2023-08-13  9:09                                 ` Ihor Radchenko
2023-08-13  9:49                                   ` Emanuel Berg
2023-08-13 10:21                                     ` Ihor Radchenko
2023-08-14  2:20                                       ` Emanuel Berg
2023-08-14  2:42                                         ` [PATCH] Re: Bignum performance Po Lu
2023-08-14  4:16                                           ` Emanuel Berg
2023-08-14  7:15                                           ` Ihor Radchenko
2023-08-14  7:50                                             ` Po Lu
2023-08-14  9:28                                               ` Ihor Radchenko
2023-08-15 14:28                                             ` Emanuel Berg
2023-08-14  7:20                                         ` [PATCH] Re: Bignum performance (was: Shrinking the C core) Ihor Radchenko
2023-08-11 22:46                           ` Emanuel Berg
2023-08-12  8:30                             ` Ihor Radchenko
2023-08-12 16:22                               ` Emanuel Berg
2023-08-13  9:12                                 ` Ihor Radchenko
2023-08-11 14:14               ` Mattias Engdegård
2023-08-11 18:09                 ` Emanuel Berg
2023-08-10 23:49           ` Shrinking the C core Eric S. Raymond
2023-08-11  0:03             ` Christopher Dimech
2023-08-11  8:24               ` Immanuel Litzroth
2023-08-11  7:03             ` Eli Zaretskii
2023-08-11  7:19               ` tomas
2023-08-11 10:57               ` Eli Zaretskii
2023-08-10 11:28         ` Dmitry Gutov
2023-08-10 21:26           ` Eric S. Raymond
2023-08-12  2:46           ` Richard Stallman
2023-08-12  3:22             ` Emanuel Berg
2023-08-12  8:33               ` Ihor Radchenko
2023-08-12 15:58                 ` Emanuel Berg
2023-08-13  9:13                   ` Ihor Radchenko
2023-08-13  9:55                     ` Emanuel Berg
2023-08-13 10:23                       ` Ihor Radchenko
2023-08-13 20:55                         ` Emanuel Berg
2023-08-14  0:13                         ` Emanuel Berg
2023-08-12 18:32               ` tomas
2023-08-12 22:08                 ` Emanuel Berg
2023-08-12 23:09                 ` Emanuel Berg
2023-08-13  5:50                   ` tomas
2023-08-13  8:38                     ` Emanuel Berg
2023-08-13 15:54                     ` [External] : " Drew Adams
2023-08-13  8:00                   ` Andreas Schwab
2023-08-13  9:21                     ` Emanuel Berg
2023-08-14  7:27                       ` Alfred M. Szmidt
2023-08-14  7:36                         ` Ihor Radchenko
2023-08-14  7:50                           ` Alfred M. Szmidt
2023-08-15 22:57                             ` Emanuel Berg
2023-08-16 10:27                               ` Ihor Radchenko
2023-08-19 13:29                                 ` Emanuel Berg
2023-08-20  5:09                                   ` Ihor Radchenko
2023-08-20  6:51                                     ` Emanuel Berg
2023-08-20  7:14                                       ` Ihor Radchenko
2023-08-20  7:52                                         ` Emanuel Berg
2023-08-20 13:01                                           ` tomas
2023-08-20 13:12                                             ` Ihor Radchenko
2023-08-20  8:28                                         ` Alfred M. Szmidt
2023-08-20  9:29                                           ` Emanuel Berg
2023-08-20 15:22                                             ` Alfred M. Szmidt
2023-08-20 15:36                                               ` Ihor Radchenko
2023-08-20 15:45                                                 ` Eli Zaretskii
2023-08-20 15:54                                                   ` Ihor Radchenko
2023-08-20 16:29                                                     ` Alfred M. Szmidt
2023-08-20 16:37                                                       ` Ihor Radchenko
2023-08-20 17:19                                                         ` Alfred M. Szmidt
2023-08-20 17:31                                                           ` Ihor Radchenko
2023-08-20 18:54                                                             ` Alfred M. Szmidt
2023-08-20 19:07                                                               ` Eli Zaretskii
2023-08-27  3:53                                                                 ` Emanuel Berg
2023-08-20 19:15                                                               ` Ihor Radchenko
2023-08-20 19:24                                                                 ` Ihor Radchenko
2023-08-21  2:33                                                                   ` Eli Zaretskii
2023-08-21  4:11                                                                     ` Ihor Radchenko
2023-08-21  4:15                                                                       ` Po Lu
2023-08-21  4:36                                                                         ` Ihor Radchenko
2023-08-21  4:43                                                                           ` Po Lu
2023-08-21  5:06                                                                             ` Ihor Radchenko
2023-08-21  5:25                                                                               ` [External] : " Drew Adams
2023-08-21  5:34                                                                               ` Po Lu
2023-08-21  9:17                                                                                 ` Add more supported primitives in libgccjit IR (was: Shrinking the C core) Ihor Radchenko
2023-08-21  9:42                                                                                   ` Gregory Heytings
2023-08-21 10:36                                                                                     ` Ihor Radchenko
2023-08-21 11:02                                                                                       ` Alfred M. Szmidt
2023-08-21 11:41                                                                                         ` Ihor Radchenko
2023-08-21 12:20                                                                                           ` Eli Zaretskii
2023-08-21 14:49                                                                                             ` Add more supported primitives in libgccjit IR Andrea Corallo
2023-08-23 10:11                                                                                               ` Ihor Radchenko
2023-08-25  9:19                                                                                                 ` Andrea Corallo
2023-08-25 11:06                                                                                                   ` Ihor Radchenko
2023-08-25 14:26                                                                                                     ` Andrea Corallo
2023-08-26 11:14                                                                                                       ` Ihor Radchenko
2023-08-27  1:40                                                                                                   ` Emanuel Berg
2023-08-27  7:38                                                                                                     ` Emanuel Berg
2023-08-27 13:42                                                                                                       ` Andrea Corallo
2023-08-27 22:19                                                                                                         ` Emanuel Berg
2023-08-28  5:04                                                                                                           ` Andrea Corallo
2023-08-28 19:49                                                                                                             ` Emanuel Berg
2023-08-26  0:47                                                                                               ` Emanuel Berg
2023-08-26  8:26                                                                                                 ` Ihor Radchenko
2023-08-26 17:52                                                                                                   ` Emanuel Berg
2023-08-21 11:05                                                                                       ` Add more supported primitives in libgccjit IR (was: Shrinking the C core) Gregory Heytings
2023-08-21 11:46                                                                                         ` Ihor Radchenko
2023-08-21 12:33                                                                                           ` Gregory Heytings
2023-08-21 11:34                                                                                       ` Add more supported primitives in libgccjit IR Manuel Giraud via Emacs development discussions.
2023-08-21 11:02                                                                                     ` Add more supported primitives in libgccjit IR (was: Shrinking the C core) Alfred M. Szmidt
2023-08-21 11:12                                                                                   ` Add more supported primitives in libgccjit IR Eli Zaretskii
2023-08-21 11:53                                                                                     ` Ihor Radchenko
2023-08-27  2:04                                                                                 ` Shrinking the C core Emanuel Berg
2023-08-21  7:59                                                                               ` Gregory Heytings
2023-08-27  5:31                                                                               ` Emanuel Berg
2023-08-27  6:16                                                                                 ` Emanuel Berg
2023-08-21 10:48                                                                       ` Eli Zaretskii
2023-08-21 11:56                                                                         ` Ihor Radchenko
2023-08-21 12:22                                                                           ` Eli Zaretskii
2023-08-28  4:41                                                                   ` Emanuel Berg
2023-08-28 11:27                                                                     ` Ihor Radchenko
2023-08-20 20:15                                                                 ` Alfred M. Szmidt
2023-08-20 20:39                                                                   ` Ihor Radchenko
2023-08-21  5:59                                                                     ` Alfred M. Szmidt
2023-08-21  6:23                                                                       ` Ihor Radchenko
2023-08-21  7:21                                                                         ` Alfred M. Szmidt
2023-08-21  7:26                                                                           ` Ihor Radchenko
2023-08-21  7:52                                                                             ` Alfred M. Szmidt
2023-08-21 10:46                                                                               ` Ihor Radchenko
2023-08-21 11:02                                                                                 ` Alfred M. Szmidt
2023-08-27  4:01                                                                 ` Emanuel Berg
2023-08-27  8:53                                                                   ` Ihor Radchenko
2023-08-27  3:48                                                               ` Emanuel Berg
2023-08-27  9:06                                                                 ` Ihor Radchenko
2023-08-27  3:25                                                   ` Emanuel Berg
2023-08-27  8:55                                                     ` Ihor Radchenko
2023-08-20 16:03                                                 ` Alfred M. Szmidt
2023-08-20 16:34                                                   ` Ihor Radchenko
2023-08-20 17:19                                                     ` Alfred M. Szmidt
2023-08-20 17:25                                                       ` Ihor Radchenko
2023-08-20 18:54                                                         ` Alfred M. Szmidt
2023-08-20 19:02                                                           ` Eli Zaretskii
2023-08-20 20:11                                                             ` Alfred M. Szmidt
2023-08-23 21:09                                                               ` Emanuel Berg
2023-08-26  2:01                                                                 ` Richard Stallman
2023-08-26  5:48                                                                   ` Eli Zaretskii
2023-08-26 18:15                                                                     ` Emanuel Berg
2023-08-26 18:27                                                                       ` Eli Zaretskii
2023-08-20 19:14                                                 ` Eli Zaretskii
2023-08-20 19:44                                                   ` Ihor Radchenko
2023-08-20 20:11                                                     ` Alfred M. Szmidt
2023-08-21  2:35                                                     ` Eli Zaretskii
2023-08-21  8:48                                                       ` Ihor Radchenko
2023-08-21 11:10                                                         ` Eli Zaretskii
2023-08-21 11:59                                                           ` Ihor Radchenko
2023-08-21 12:23                                                             ` Eli Zaretskii
2023-08-23 10:13                                                               ` Ihor Radchenko
2023-08-20 20:32                                               ` Emanuel Berg
2023-08-21  6:19                                                 ` Alfred M. Szmidt
2023-08-21  6:26                                                   ` Ihor Radchenko
2023-08-21  7:21                                                     ` Alfred M. Szmidt
2023-08-21  7:25                                                       ` Ihor Radchenko
2023-08-21  7:52                                                         ` Alfred M. Szmidt
2023-08-21 11:26                                                           ` Ihor Radchenko
2023-08-22 23:55                                                   ` Emanuel Berg
2023-08-23  7:04                                                     ` Alfred M. Szmidt
2023-08-23 17:24                                                       ` Emanuel Berg
2023-08-24 20:02                                                         ` Emanuel Berg
2023-08-20 21:51                                       ` [External] : " Drew Adams
2023-08-21  8:54                                         ` Type declarations in Elisp (was: [External] : Re: Shrinking the C core) Ihor Radchenko
2023-08-21  9:30                                           ` Gerd Möllmann
2023-08-21 11:13                                             ` Type declarations in Elisp Eli Zaretskii
2023-08-21 11:37                                             ` Type declarations in Elisp (was: [External] : Re: Shrinking the C core) Ihor Radchenko
2023-08-22  5:34                                               ` Type declarations in Elisp Gerd Möllmann
2023-08-22  6:16                                                 ` Ihor Radchenko
2023-08-22 11:14                                                 ` Eli Zaretskii
2023-08-22 23:33                                                   ` Emanuel Berg
2023-08-25  9:29                                                     ` Andrea Corallo
2023-08-25 20:42                                                       ` Emanuel Berg
2023-08-27  8:42                                                     ` Ihor Radchenko
2023-08-27 14:04                                                       ` Andrea Corallo
2023-08-27 14:07                                                         ` Ihor Radchenko
2023-08-27 15:46                                                           ` Andrea Corallo
2023-08-27 17:15                                                             ` Ihor Radchenko
2023-08-27 18:06                                                               ` Andrea Corallo
2023-08-28  9:56                                                                 ` Ihor Radchenko
2023-08-28 19:06                                                                   ` Emanuel Berg
2023-08-18  8:35                               ` Shrinking the C core Aurélien Aptel
2023-08-19 13:32                                 ` Emanuel Berg
2023-08-31  1:41                                 ` Emanuel Berg
2023-08-14  2:36                   ` Richard Stallman
2023-08-14  4:12                     ` Emanuel Berg
2023-08-14 11:15                       ` Ihor Radchenko
2023-08-12  3:28             ` Christopher Dimech
2023-08-12  3:48               ` Emanuel Berg
2023-08-12  3:50               ` Emanuel Berg
2023-08-12  6:00                 ` Christopher Dimech
2023-08-12  6:02               ` Eli Zaretskii
2023-08-12  7:38                 ` Christopher Dimech
2023-08-09 12:45 ` Eli Zaretskii
2023-08-09 16:11   ` Eric S. Raymond
2023-08-09 16:44     ` Eli Zaretskii
2023-08-09 17:57       ` Eric S. Raymond
  -- strict thread matches above, loose matches on Subject: below --
2023-08-14  6:28 [PATCH] Re: Bignum performance (was: Shrinking the C core) Gerd Möllmann
2023-08-14  6:56 ` Gerd Möllmann
2023-08-14  7:04   ` Ihor Radchenko
2023-08-14  7:35     ` Gerd Möllmann
2023-08-14  8:09       ` Ihor Radchenko
2023-08-14  9:28         ` Gerd Möllmann
2023-08-14  9:42           ` Ihor Radchenko
2023-08-15 14:03             ` Emanuel Berg
2023-08-15 15:01               ` Ihor Radchenko
2023-08-15 22:21                 ` Emanuel Berg
2023-08-15 22:33                 ` Emanuel Berg
2023-08-16  4:36                   ` tomas
2023-08-16  5:23                     ` Emanuel Berg
2023-08-14 16:51           ` Emanuel Berg
2023-08-15  4:58             ` Gerd Möllmann
2023-08-15 14:20               ` Emanuel Berg

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=87il9l1i59.fsf@localhost \
    --to=yantar92@posteo.net \
    --cc=emacs-devel@gnu.org \
    --cc=incal@dataswamp.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this external index

	https://git.savannah.gnu.org/cgit/emacs.git
	https://git.savannah.gnu.org/cgit/emacs/org-mode.git

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.