From: Teng Long <dyroneteng@gmail.com>
To: peff@peff.net
Cc: avarab@gmail.com, derrickstolee@github.com, dyroneteng@gmail.com,
git@vger.kernel.org, gitster@pobox.com, me@ttaylorr.com,
tenglong.tl@alibaba-inc.com
Subject: Re: [PATCH 0/1] pack-bitmap.c: avoid exposing absolute paths
Date: Wed, 2 Nov 2022 13:37:48 +0800 [thread overview]
Message-ID: <20221102053748.7366-1-tenglong.tl@alibaba-inc.com> (raw)
In-Reply-To: <Y1rt+uOKwlP5PIrT@coredump.intra.peff.net>
Jeff King <peff@peff.net> writes：
> Now this might not be as bad as it seems:
>
> - in the long run, we might open those idx files anyway, if we have to
> access those packs. So it's really just overriding the lazy-open
> behavior.
Sorry, can you explain it a bit more. When we might open idxes anyway? Do you
mean if the pack idx files will be opened sooner or later if a repo serves
git-upload-pack many times in the long run. So, the system-wide table or the
mmap space will not be wasted so much in practice.
> - in the worst case, the one bitmap file is at the end of the list, so
> you hit all N anyway. And this is actually pretty common, since we
> sort in reverse-chronological order, and the bitmap is usually on
> the oldest and biggest pack.
Yes, in "sort_pack()" I think.
> So it may not be worth worrying about. It does seem like it would be
> easy to reorder open_pack_bitmap_1() to look for a bitmap file first and
> only open the idx if it finds something.
I think it may be worthy if we have lots of packs and the bitmap is refer to
an older one, but I didn't make the test. At least, the scenario is common, I
agree with that, so maybe we could shuffle the sort order in "open_pack_bitmap()".
Thanks.
next prev parent reply other threads:[~2022-11-02 5:38 UTC|newest]
Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-26 7:09 [PATCH 0/1] pack-bitmap.c: avoid exposing absolute paths Teng Long
2022-08-26 7:09 ` [PATCH 1/1] " Teng Long
2022-08-26 16:34 ` [PATCH 0/1] " Junio C Hamano
2022-08-29 2:48 ` Teng Long
2022-10-26 21:42 ` Taylor Blau
2022-10-26 23:19 ` Ævar Arnfjörð Bjarmason
2022-10-31 13:20 ` Teng Long
2022-10-27 20:45 ` Jeff King
2022-10-30 18:42 ` Taylor Blau
2022-10-31 12:22 ` [PATCH 0/1] pack-bitmap.c: avoid exposing absolute paths Taylor Blau <me@ttaylorr.com> writes: Teng Long
2022-11-02 5:37 ` Teng Long [this message]
2022-11-02 7:54 ` [PATCH 0/1] pack-bitmap.c: avoid exposing absolute paths Jeff King
2022-11-02 13:52 ` Teng Long
2022-10-31 13:13 ` Teng Long
2022-11-03 1:00 ` Taylor Blau
2022-11-02 9:20 ` Ævar Arnfjörð Bjarmason
2022-11-02 13:04 ` Teng Long
2022-11-02 12:56 ` [PATCH v2 " Teng Long
2022-11-02 12:56 ` [PATCH v2 1/1] " Teng Long
2022-11-03 1:16 ` Taylor Blau
2022-11-03 9:35 ` Teng Long
2022-11-05 0:35 ` Taylor Blau
2022-11-03 1:21 ` [PATCH v2 0/1] " Taylor Blau
2022-11-03 8:42 ` Teng Long
2022-11-04 3:17 ` [PATCH v3 0/2] " Teng Long
2022-11-04 3:17 ` [PATCH v3 1/2] " Teng Long
2022-11-04 22:11 ` Taylor Blau
2022-11-04 3:17 ` [PATCH v3 2/2] pack-bitmap.c: remove unnecessary "open_pack_index()" calls Teng Long
2022-11-04 22:09 ` Taylor Blau
2022-11-04 22:13 ` [PATCH v3 0/2] pack-bitmap.c: avoid exposing absolute paths Taylor Blau
2022-11-10 7:10 ` Teng Long
2022-11-10 7:10 ` [PATCH v3 1/2] pack-bitmap.c: remove unnecessary "open_pack_index()" calls Teng Long
2022-11-14 22:03 ` Jeff King
2022-11-14 22:14 ` Taylor Blau
2022-11-14 22:31 ` Jeff King
2022-11-14 22:50 ` Taylor Blau
2022-11-10 7:10 ` [PATCH v3 2/2] pack-bitmap.c: avoid exposing absolute paths Teng Long
2022-11-11 22:26 ` [PATCH v3 0/2] " Taylor Blau
2022-11-14 22:23 ` Jeff King
2022-11-17 14:19 ` Teng Long
2022-11-17 15:03 ` Jeff King
2022-11-17 21:57 ` Taylor Blau
2022-11-21 3:27 ` Teng Long
2022-11-21 12:16 ` [PATCH v4 0/4] " Teng Long
2022-11-21 12:16 ` [PATCH v4 1/4] pack-bitmap.c: remove unnecessary "open_pack_index()" calls Teng Long
2022-11-21 12:16 ` [PATCH v4 2/4] pack-bitmap.c: avoid exposing absolute paths Teng Long
2022-11-21 12:16 ` [PATCH v4 3/4] pack-bitmap.c: break out of the bitmap loop early if not tracing Teng Long
2022-11-21 23:27 ` Junio C Hamano
2022-11-28 13:09 ` Teng Long
2022-11-21 12:16 ` [PATCH v4 4/4] pack-bitmap.c: trace bitmap ignore logs when midx-bitmap is found Teng Long
2022-11-21 19:09 ` Jeff King
2022-11-21 23:29 ` Junio C Hamano
2022-11-28 12:29 ` Teng Long
2022-11-28 12:37 ` Teng Long
2022-11-29 1:27 ` Jeff King
2022-11-29 13:14 ` Teng Long
2022-11-21 19:04 ` [PATCH v4 0/4] pack-bitmap.c: avoid exposing absolute paths Jeff King
2022-11-28 12:48 ` Teng Long
2022-11-28 14:09 ` [PATCH v5 " Teng Long
2022-11-28 14:09 ` [PATCH v5 1/4] pack-bitmap.c: remove unnecessary "open_pack_index()" calls Teng Long
2022-11-28 14:09 ` [PATCH v5 2/4] pack-bitmap.c: avoid exposing absolute paths Teng Long
2022-11-28 14:09 ` [PATCH v5 3/4] pack-bitmap.c: break out of the bitmap loop early if not tracing Teng Long
2022-11-28 23:26 ` Taylor Blau
2022-11-29 13:17 ` Teng Long
2022-11-28 14:09 ` [PATCH v5 4/4] pack-bitmap.c: trace bitmap ignore logs when midx-bitmap is found Teng Long
2022-11-28 23:30 ` [PATCH v5 0/4] pack-bitmap.c: avoid exposing absolute paths Taylor Blau
2022-11-29 13:21 ` Teng Long
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=20221102053748.7366-1-tenglong.tl@alibaba-inc.com \
--to=dyroneteng@gmail.com \
--cc=avarab@gmail.com \
--cc=derrickstolee@github.com \
--cc=git@vger.kernel.org \
--cc=gitster@pobox.com \
--cc=me@ttaylorr.com \
--cc=peff@peff.net \
--cc=tenglong.tl@alibaba-inc.com \
/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.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).