From 93b73b064c663d6248bebfbbbd82989b5ca10fc5 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Wed, 21 Nov 2012 00:28:00 +0100
Subject: journal: by default do not decompress dat objects larger than 64K

This introduces a new data threshold setting for sd_journal objects
which controls the maximum size of objects to decompress. This is
relieves the library from having to decompress full data objects even
if a client program is only interested in the initial part of them.

This speeds up "systemd-coredumpctl" drastically when invoked without
parameters.
---
 man/sd_journal_query_unique.xml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'man/sd_journal_query_unique.xml')

diff --git a/man/sd_journal_query_unique.xml b/man/sd_journal_query_unique.xml
index f2f8af0eb5..502a7e08c2 100644
--- a/man/sd_journal_query_unique.xml
+++ b/man/sd_journal_query_unique.xml
@@ -113,7 +113,9 @@
                 invocation of
                 <function>sd_journal_enumerate_unique()</function>. Note
                 that the data returned will be prefixed with the field
-                name and '='.</para>
+                name and '='. Note that this call is subject to the
+                data field size threshold as controlled by
+                <function>sd_journal_set_data_threshold()</function>.</para>
 
                 <para><function>sd_journal_restart_unique()</function>
                 resets the data enumeration index to the beginning of
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