user/dev discussion of public-inbox itself
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From: Eric Wong <e@80x24.org>
To: meta@public-inbox.org
Subject: [PATCH 07/10] config: _fill: inbox name extraction optimization
Date: Wed, 23 Dec 2020 08:38:50 +0000	[thread overview]
Message-ID: <20201223083853.30721-8-e@80x24.org> (raw)
In-Reply-To: <20201223083853.30721-1-e@80x24.org>

Using substr() instead of a string copy + s// substitution here
reduces ->fill_all from 4.00s to 3.88s with 50K inboxes on my
workstation.
---
 lib/PublicInbox/Config.pm | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/lib/PublicInbox/Config.pm b/lib/PublicInbox/Config.pm
index 577337dc..cd8957a1 100644
--- a/lib/PublicInbox/Config.pm
+++ b/lib/PublicInbox/Config.pm
@@ -424,9 +424,7 @@ EOF
 		}
 	}
 
-	my $name = $pfx;
-	$name =~ s/\Apublicinbox\.//;
-
+	my $name = substr($pfx, length('publicinbox.'));
 	if (!valid_inbox_name($name)) {
 		warn "invalid inbox name: '$name'\n";
 		return;

  parent reply	other threads:[~2020-12-23  8:38 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-23  8:38 [PATCH 00/10] start optimizing startup w/ ALL->misc Eric Wong
2020-12-23  8:38 ` [PATCH 01/10] miscsearch: load Xapian at initialization Eric Wong
2020-12-23  8:38 ` [PATCH 02/10] xt: add create-many-inboxes helper test Eric Wong
2020-12-23  8:38 ` [PATCH 03/10] inbox: git_epoch: correct false comment Eric Wong
2020-12-23  8:38 ` [PATCH 04/10] inboxwritable: _init_v1: set created_at ASAP Eric Wong
2020-12-23  8:38 ` [PATCH 05/10] miscsearch: index UIDVALIDITY, use as startup cache Eric Wong
2020-12-23  8:38 ` [PATCH 06/10] extsearchidx: close SQLite handles after attaching Eric Wong
2020-12-23  8:38 ` Eric Wong [this message]
2020-12-23  8:38 ` [PATCH 08/10] config: git_config_dump: pre-compile RE for split Eric Wong
2020-12-23  8:38 ` [PATCH 09/10] config: config_fh_parse: micro-optimize Eric Wong
2020-12-23  8:38 ` [PATCH 10/10] config: config_fh_parse: micro-optimize harder Eric Wong

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