annotate mod_measure_malloc/mod_measure_malloc.lua @ 4976:75b6e5df65f9

various: Improve error reporting if missing file server module on 0.12 If there is some error loading net.http.files then it would be swallowed by the pcall and then it would proceed to trying mod_http_files, which might cause unexpected behavior on 0.12 Ref #1765
author Kim Alvefur <zash@zash.se>
date Mon, 18 Jul 2022 22:47:54 +0200
parents b9af1ccac98b
children
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1 module:set_global();
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2
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3 local metric = require"core.statsmanager".metric;
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4 local pposix = require"util.pposix";
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5
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6 local allocated = metric(
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7 "gauge", "malloc_heap_allocated", "bytes",
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8 "Allocated bytes by mode of allocation",
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9 {"mode"}
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10 );
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11
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12 local used = metric(
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13 "gauge", "malloc_heap_used", "bytes",
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14 "Used bytes"
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15 ):with_labels();
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16
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17 local unused = metric(
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18 "gauge", "malloc_heap_unused", "bytes",
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19 "Unused bytes"
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20 ):with_labels();
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21
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22 local returnable = metric(
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23 "gauge", "malloc_heap_returnable", "bytes",
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24 "Returnable bytes"
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25 ):with_labels();
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26
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27 module:hook("stats-update", function ()
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28 local meminfo = pposix.meminfo();
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29 if meminfo.allocated then
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30 allocated:with_labels("sbrk"):set(meminfo.allocated);
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31 end
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32 if meminfo.allocated_mmap then
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33 allocated:with_labels("mmap"):set(meminfo.allocated_mmap);
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34 end
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35 if meminfo.used then
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36 used:set(meminfo.used);
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37 end
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38 if meminfo.unused then
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39 unused:set(meminfo.unused);
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40 end
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41 if meminfo.returnable then
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42 returnable:set(meminfo.returnable);
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43 end
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44 end);