user/dev discussion of public-inbox itself
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From: Eric Wong <>
Subject: [PATCH 1/9] doc: tuning: additional notes for many inboxes
Date: Tue, 26 Oct 2021 10:35:49 +0000	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

-extindex is the most important piece for dealing with many
inboxes, so note it first.  Also, frequent use of "git gc" is
important for both loose object performance and reducing memory
 Documentation/public-inbox-tuning.pod | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/Documentation/public-inbox-tuning.pod b/Documentation/public-inbox-tuning.pod
index 7b18b3bc4030..53668eccb7cb 100644
--- a/Documentation/public-inbox-tuning.pod
+++ b/Documentation/public-inbox-tuning.pod
@@ -165,12 +165,15 @@ Other OSes may have similar tuning knobs (patches appreciated).
 =head2 Scalability to many inboxes
+L<public-inbox-extindex(1)> allows any number of public-inboxes
+to share the same Xapian indices.
 git 2.33+ startup time is orders-of-magnitude faster and uses
 less memory when dealing with thousands of alternates required
-for thousands of inboxes.
+for thousands of inboxes with L<public-inbox-extindex(1)>.
-L<public-inbox-extindex(1)> allows any number of public-inboxes
-to share the same Xapian indices.
+Frequent packing (via L<git-gc(1)>) both improves performance
+and reduces the need to increase C<sys.vm.max_map_count>.
 =head1 CONTACT
@@ -184,6 +187,6 @@ L<http://4uok3hntl7oi7b4uf4rtfwefqeexfzil2w6kgk2jn5z2f764irre7byd.onion/meta/>,
-Copyright 2020-2021 all contributors L<>
+Copyright all contributors L<>
 License: AGPL-3.0+ L<>

  reply	other threads:[~2021-10-26 10:35 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-26 10:35 [PATCH 0/9] lei p2q: more capable than originally thought Eric Wong
2021-10-26 10:35 ` Eric Wong [this message]
2021-10-26 10:35 ` [PATCH 2/9] doc: lei-store-format: mail sync section, update IPC Eric Wong
2021-10-26 10:35 ` [PATCH 3/9] eml: keep body if no headers are found Eric Wong
2021-10-26 10:35 ` [PATCH 4/9] lei q: enable expensive Xapian flags Eric Wong
2021-10-26 10:35 ` [PATCH 5/9] lei inspect: fix atfork hook Eric Wong
2021-10-26 10:35 ` [PATCH 6/9] lei: add net getopt spec to various commands Eric Wong
2021-10-26 10:35 ` [PATCH 7/9] lei p2q: use LeiInput for multi-patch series Eric Wong
2021-10-26 10:35 ` [PATCH 8/9] lei rm|tag: drop redundant mbox+net callbacks Eric Wong
2021-10-26 10:35 ` [PATCH 9/9] input_pipe: account for undefined {sock} Eric Wong

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