From: Lennart Poettering <lennart@poettering.net>
Date: Wed, 18 Jul 2012 14:22:25 +0000 (+0200)
Subject: journal: estimate data hash table size a bit larger by default
X-Git-Tag: v187~25
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=dfabe643f3560dcf147f49ec11e95b95c718c3da

journal: estimate data hash table size a bit larger by default
---

diff --git a/src/journal/journal-file.c b/src/journal/journal-file.c
index d8ce495d8..b9ab009b3 100644
--- a/src/journal/journal-file.c
+++ b/src/journal/journal-file.c
@@ -510,16 +510,16 @@ static int journal_file_setup_data_hash_table(JournalFile *f) {
 
         assert(f);
 
-        /* We estimate that we need 1 hash table entry per 2K of
+        /* We estimate that we need 1 hash table entry per 768 of
            journal file and we want to make sure we never get beyond
            75% fill level. Calculate the hash table size for the
            maximum file size based on these metrics. */
 
-        s = (f->metrics.max_size * 4 / 2048 / 3) * sizeof(HashItem);
+        s = (f->metrics.max_size * 4 / 768 / 3) * sizeof(HashItem);
         if (s < DEFAULT_DATA_HASH_TABLE_SIZE)
                 s = DEFAULT_DATA_HASH_TABLE_SIZE;
 
-        log_info("Reserving %llu entries in hash table.", (unsigned long long) s);
+        log_info("Reserving %llu entries in hash table.", (unsigned long long) (s / sizeof(HashItem)));
 
         r = journal_file_append_object(f,
                                        OBJECT_DATA_HASH_TABLE,