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comparison src/lib-index/mail-cache-private.h @ 22611:65ada9976a7f

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lib-index: Add mail_index_cache_optimization_settings
author Timo Sirainen <timo.sirainen@dovecot.fi>
date Mon, 09 Oct 2017 15:37:51 +0300
parents 7ae75b9c0a23
children 105a2e1fd770
comparison
equal deleted inserted replaced
22610:bf758ce6ee6d 22611:65ada9976a7f
5 #include "mail-index-private.h" 5 #include "mail-index-private.h"
6 #include "mail-cache.h" 6 #include "mail-cache.h"
7 7
8 #define MAIL_CACHE_MAJOR_VERSION 1 8 #define MAIL_CACHE_MAJOR_VERSION 1
9 #define MAIL_CACHE_MINOR_VERSION 1 9 #define MAIL_CACHE_MINOR_VERSION 1
10
11 /* Drop fields that haven't been accessed for n seconds */
12 #define MAIL_CACHE_FIELD_DROP_SECS (3600*24*30)
13
14 /* Never compress the file if it's smaller than this */
15 #define MAIL_CACHE_COMPRESS_MIN_SIZE (1024*32)
16
17 /* Compress the file when n% of records are deleted */
18 #define MAIL_CACHE_COMPRESS_DELETE_PERCENTAGE 20
19
20 /* Compress the file when n% of rows contain continued rows.
21 200% means that there's 2 continued rows per record. */
22 #define MAIL_CACHE_COMPRESS_CONTINUED_PERCENTAGE 200
23
24 /* Compress the file when we need to follow more than n next_offsets to find
25 the latest cache header. */
26 #define MAIL_CACHE_HEADER_FIELD_CONTINUE_COUNT 4
27
28 /* If cache record becomes larger than this, don't add it. */
29 #define MAIL_CACHE_RECORD_MAX_SIZE (64*1024)
30 10
31 #define MAIL_CACHE_LOCK_TIMEOUT 10 11 #define MAIL_CACHE_LOCK_TIMEOUT 10
32 #define MAIL_CACHE_LOCK_CHANGE_TIMEOUT 300 12 #define MAIL_CACHE_LOCK_CHANGE_TIMEOUT 300
33 13
34 #define MAIL_CACHE_IS_UNUSABLE(cache) \ 14 #define MAIL_CACHE_IS_UNUSABLE(cache) \