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annotate mod_presence_cache/README.markdown @ 4813:0a257d1402c3

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mod_muc_rtbl: Optimize case with zero hashes On the assumption that during quiet times between torrents of spam, the hash set would be empty. There would be no point in doing the operations and hashes to check for a match in that case.
author Kim Alvefur <zash@zash.se>
date Mon, 06 Dec 2021 18:19:19 +0100
parents ed2bb50d4f91
children
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1 ---
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2 summary: Cache presence from remote users
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3 ...
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4
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5 Introduction
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6 ============
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7
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8 This module stores a timestamp of the latest presence received from
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9 users contacts so that the client can see who is online faster when they
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10 sign in, and won't have to wait for remote servers to reply.
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11
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12 Configuration
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13 =============
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14
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15 Just enable the module.
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16
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17 modules_enabled = {
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18 -- more modules
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19 "presence_cache";
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20 }
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21
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22 Advanced configuration
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23 ======================
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24
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25 The size of the cache is tuneable:
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26
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27 presence_cache_size = 99
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28
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29 Compatibility
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30 =============
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31
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32 Requires 0.10 or later