From: Alessio Podda <alessio@isc.org>
Date: Fri, 31 Oct 2025 12:16:03 +0000 (+0000)
Subject: fix: usr: Skip buffer allocations if not logging
X-Git-Tag: v9.21.15~15
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a8f0898d2dc0978cf2235c121908df691fc19b6e;p=thirdparty%2Fbind9.git

fix: usr: Skip buffer allocations if not logging

Currently, during IXFR we allocate a 2KB buffer for IXFR change logging
regardless of the log level. This commit introduces an early check
on the log level in dns_diff_print to avoid this.

Results in a speedup from 28% in the test case from issue #5442.

Merge branch '5442-ixfr-no-log-alloc' into 'main'

See merge request isc-projects/bind9!11178
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a8f0898d2dc0978cf2235c121908df691fc19b6e