From: Karthik Nayak <karthik.188@gmail.com>
To: Patrick Steinhardt <ps@pks.im>, git@vger.kernel.org
Subject: Re: [PATCH 10/11] reftable: make the compaction factor configurable
Date: Fri, 10 May 2024 04:55:10 -0500 [thread overview]
Message-ID: <CAOLa=ZQMoYM6L_2jwE9pOVUOV1tLep93m7VGLA00nrpHKdy0Vg@mail.gmail.com> (raw)
In-Reply-To: <30e2e33479a6b6b07a4652e84eebd78f71fb363a.1714630191.git.ps@pks.im>
[-- Attachment #1: Type: text/plain, Size: 1787 bytes --]
Patrick Steinhardt <ps@pks.im> writes:
> When auto-compacting, the reftable library packs references such that
> the sizes of the tables form a geometric sequence. The factor for this
> geometric sequence is hardcoded to 2 right now. We're about to expose
> this as a config option though, so let's expose the factor via write
> options.
>
> Signed-off-by: Patrick Steinhardt <ps@pks.im>
> ---
> reftable/reftable-writer.h | 6 ++++++
> reftable/stack.c | 13 +++++++++----
> reftable/stack.h | 3 ++-
> reftable/stack_test.c | 4 ++--
> 4 files changed, 19 insertions(+), 7 deletions(-)
>
> diff --git a/reftable/reftable-writer.h b/reftable/reftable-writer.h
> index 4cd8ebe6c7..155457b042 100644
> --- a/reftable/reftable-writer.h
> +++ b/reftable/reftable-writer.h
> @@ -49,6 +49,12 @@ struct reftable_write_options {
>
> /* boolean: Prevent auto-compaction of tables. */
> unsigned disable_auto_compact : 1;
> +
> + /*
> + * Geometric sequence factor used by auto-compaction to decide which
> + * tables to compact. Defaults to 2 if unset.
> + */
> + uint8_t auto_compaction_factor;
> };
>
> /* reftable_block_stats holds statistics for a single block type */
> diff --git a/reftable/stack.c b/reftable/stack.c
> index 7b4fff7c9e..6b0f8e13e7 100644
> --- a/reftable/stack.c
> +++ b/reftable/stack.c
> @@ -1215,12 +1215,16 @@ static int segment_size(struct segment *s)
> return s->end - s->start;
> }
>
> -struct segment suggest_compaction_segment(uint64_t *sizes, size_t n)
> +struct segment suggest_compaction_segment(uint64_t *sizes, size_t n,
> + uint8_t factor)
> {
> struct segment seg = { 0 };
> uint64_t bytes;
> size_t i;
>
> + if (!factor)
> + factor = 2;
> +
This should probably go in reftable/constants.h
[snip]
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 690 bytes --]
next prev parent reply other threads:[~2024-05-10 9:55 UTC|newest]
Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-02 6:51 [PATCH 00/11] reftable: expose write options as config Patrick Steinhardt
2024-05-02 6:51 ` [PATCH 01/11] reftable: consistently refer to `reftable_write_options` as `opts` Patrick Steinhardt
2024-05-10 9:00 ` Karthik Nayak
2024-05-10 10:13 ` Patrick Steinhardt
2024-05-02 6:51 ` [PATCH 02/11] reftable: consistently pass write opts as value Patrick Steinhardt
2024-05-02 6:51 ` [PATCH 03/11] reftable/writer: drop static variable used to initialize strbuf Patrick Steinhardt
2024-05-02 6:51 ` [PATCH 04/11] reftable/writer: improve error when passed an invalid block size Patrick Steinhardt
2024-05-02 6:51 ` [PATCH 05/11] reftable/dump: support dumping a table's block structure Patrick Steinhardt
2024-05-02 6:51 ` [PATCH 06/11] refs/reftable: allow configuring block size Patrick Steinhardt
2024-05-10 9:29 ` Karthik Nayak
2024-05-10 10:13 ` Patrick Steinhardt
2024-05-02 6:52 ` [PATCH 07/11] reftable: use `uint16_t` to track restart interval Patrick Steinhardt
2024-05-02 6:52 ` [PATCH 08/11] refs/reftable: allow configuring " Patrick Steinhardt
2024-05-02 6:52 ` [PATCH 09/11] refs/reftable: allow disabling writing the object index Patrick Steinhardt
2024-05-02 6:52 ` [PATCH 10/11] reftable: make the compaction factor configurable Patrick Steinhardt
2024-05-10 9:55 ` Karthik Nayak [this message]
2024-05-10 10:13 ` Patrick Steinhardt
2024-05-02 6:52 ` [PATCH 11/11] refs/reftable: allow configuring geometric factor Patrick Steinhardt
2024-05-10 9:58 ` Karthik Nayak
2024-05-10 10:13 ` Patrick Steinhardt
2024-05-02 7:29 ` [PATCH 00/11] reftable: expose write options as config Patrick Steinhardt
2024-05-03 20:38 ` Junio C Hamano
2024-05-06 6:51 ` Patrick Steinhardt
2024-05-06 21:29 ` Justin Tobler
2024-05-10 10:00 ` Karthik Nayak
2024-05-10 10:14 ` Patrick Steinhardt
2024-05-10 10:29 ` [PATCH v2 " Patrick Steinhardt
2024-05-10 10:29 ` [PATCH v2 01/11] reftable: consistently refer to `reftable_write_options` as `opts` Patrick Steinhardt
2024-05-10 21:03 ` Junio C Hamano
2024-05-10 10:29 ` [PATCH v2 02/11] reftable: consistently pass write opts as value Patrick Steinhardt
2024-05-10 21:11 ` Junio C Hamano
2024-05-13 7:53 ` Patrick Steinhardt
2024-05-10 10:29 ` [PATCH v2 03/11] reftable/writer: drop static variable used to initialize strbuf Patrick Steinhardt
2024-05-10 21:19 ` Junio C Hamano
2024-05-10 10:29 ` [PATCH v2 04/11] reftable/writer: improve error when passed an invalid block size Patrick Steinhardt
2024-05-10 21:25 ` Junio C Hamano
2024-05-13 7:53 ` Patrick Steinhardt
2024-05-10 10:29 ` [PATCH v2 05/11] reftable/dump: support dumping a table's block structure Patrick Steinhardt
2024-05-13 22:42 ` Junio C Hamano
2024-05-10 10:29 ` [PATCH v2 06/11] refs/reftable: allow configuring block size Patrick Steinhardt
2024-05-10 10:29 ` [PATCH v2 07/11] reftable: use `uint16_t` to track restart interval Patrick Steinhardt
2024-05-13 22:42 ` Junio C Hamano
2024-05-14 4:54 ` Patrick Steinhardt
2024-05-10 10:29 ` [PATCH v2 08/11] refs/reftable: allow configuring " Patrick Steinhardt
2024-05-10 21:57 ` Junio C Hamano
2024-05-13 7:54 ` Patrick Steinhardt
2024-05-10 10:30 ` [PATCH v2 09/11] refs/reftable: allow disabling writing the object index Patrick Steinhardt
2024-05-10 10:30 ` [PATCH v2 10/11] reftable: make the compaction factor configurable Patrick Steinhardt
2024-05-10 22:12 ` Junio C Hamano
2024-05-13 7:54 ` Patrick Steinhardt
2024-05-13 16:22 ` Junio C Hamano
2024-05-14 4:54 ` Patrick Steinhardt
2024-05-10 10:30 ` [PATCH v2 11/11] refs/reftable: allow configuring geometric factor Patrick Steinhardt
2024-05-10 11:43 ` [PATCH v2 00/11] reftable: expose write options as config Karthik Nayak
2024-05-13 8:17 ` [PATCH v3 " Patrick Steinhardt
2024-05-13 8:17 ` [PATCH v3 01/11] reftable: consistently refer to `reftable_write_options` as `opts` Patrick Steinhardt
2024-05-13 8:17 ` [PATCH v3 02/11] reftable: pass opts as constant pointer Patrick Steinhardt
2024-05-17 8:02 ` Karthik Nayak
2024-05-21 23:22 ` Justin Tobler
2024-05-22 7:19 ` Patrick Steinhardt
2024-05-13 8:18 ` [PATCH v3 03/11] reftable/writer: drop static variable used to initialize strbuf Patrick Steinhardt
2024-05-13 8:18 ` [PATCH v3 04/11] reftable/writer: improve error when passed an invalid block size Patrick Steinhardt
2024-05-13 8:18 ` [PATCH v3 05/11] reftable/dump: support dumping a table's block structure Patrick Steinhardt
2024-05-21 23:35 ` Justin Tobler
2024-05-22 7:19 ` Patrick Steinhardt
2024-05-13 8:18 ` [PATCH v3 06/11] refs/reftable: allow configuring block size Patrick Steinhardt
2024-05-17 8:09 ` Karthik Nayak
2024-05-13 8:18 ` [PATCH v3 07/11] reftable: use `uint16_t` to track restart interval Patrick Steinhardt
2024-05-13 8:18 ` [PATCH v3 08/11] refs/reftable: allow configuring " Patrick Steinhardt
2024-05-21 23:50 ` Justin Tobler
2024-05-22 7:19 ` Patrick Steinhardt
2024-05-13 8:18 ` [PATCH v3 09/11] refs/reftable: allow disabling writing the object index Patrick Steinhardt
2024-05-13 8:18 ` [PATCH v3 10/11] reftable: make the compaction factor configurable Patrick Steinhardt
2024-05-13 8:18 ` [PATCH v3 11/11] refs/reftable: allow configuring geometric factor Patrick Steinhardt
2024-05-17 8:14 ` [PATCH v3 00/11] reftable: expose write options as config Karthik Nayak
2024-05-17 8:26 ` Patrick Steinhardt
2024-05-21 23:54 ` Justin Tobler
2024-05-22 7:19 ` Patrick Steinhardt
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
List information: http://vger.kernel.org/majordomo-info.html
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='CAOLa=ZQMoYM6L_2jwE9pOVUOV1tLep93m7VGLA00nrpHKdy0Vg@mail.gmail.com' \
--to=karthik.188@gmail.com \
--cc=git@vger.kernel.org \
--cc=ps@pks.im \
/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 public inbox
https://80x24.org/mirrors/git.git
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).