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IRC log for #minetest-dev, 2016-12-01

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All times shown according to UTC.

Time Nick Message
12:00 loggingbot_ joined #minetest-dev
12:00 Topic for #minetest-dev is now Minetest core development and maintenance. FEATURE FREEZE FOR 0.4.15 STARTS 7th Dec 2016. Chit-chat goes to #minetest. Consider this instead of /msg celeron55. http://irc.minetest.net/minetest-dev/ http://dev.minetest.net/
12:00 VanessaE told you the moss growth ABM needed an API. :P
12:02 Rincewind` yeah I told you as well!
12:02 Rincewind` 25 years ago
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12:03 Rincewind` maybe even 30 years ago
12:03 VanessaE heh
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15:00 sfan5 is it just me or does snow look like sand
15:00 est31 there is snow which does
15:01 est31 err
15:01 est31 you mean minetest snow?
15:02 sfan5 yes
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16:48 Fixer there is silver sand
16:48 Fixer that has some similarities to snow
16:49 Fixer snow texure looks nice in snow biome, it does not resemble sand to me
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20:27 paramat est31 hmmmm nore nrzkt Rincewind` sfan5 sofar please can anyone review #4061 ? well tested, just needs another +1
20:28 red-001 huh the bot is offline
20:29 paramat i'll merge https://github.com/minetes​t/minetest_game/pull/1432 'Default / flowers: New biomes. Limit dirt blobs. Add corals, bushes' once i check and test it
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20:29 paramat https://github.com/minetest/minetest/pull/4061 'Add loaded blocks to transforming_liquid-queue similar to updateLiquid'
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20:39 paramat est31 please could you check https://github.com/minetest/minetest/pull/4826 'Optimize block sent: Fix rendering issue' since you were involved in the original PR?
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20:51 paramat closed https://github.com/minetest/minetest/issues/4819 'find_node_near issue'
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20:53 paramat red-001 please could you update https://github.com/minetest/minetest/pull/4474 ?
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21:00 millersman VanessaE: Have just seen https://daconcepts.com/vanessa/ho​bbies/minetest/stats-weekly.html when looking through the last days IRC log
21:01 VanessaE millersman: migrating to a new server.
21:01 VanessaE stats tracking (along with most everything else :P ) was offline for a while
21:02 millersman You said that Zeno` thinks that it comes from the liquid queue
21:03 VanessaE OH
21:03 millersman If the spikes are still of interest I doubt that they come from the liquids queue
21:03 VanessaE well everything between 13:00 and 21:00 in today's stats is invalid
21:03 Fixer_ did some benchmarks today on 4061: 1 hr of walking on land/sea (https://i.imgur.com/7n8tdz6.png) and 1hr underground (https://i.imgur.com/SASeYaB.png)
21:03 VanessaE look at the weekly log instead
21:03 VanessaE (or the monthly one)
21:03 VanessaE you can see the general pattern there
21:05 Fixer_ millersman: the way i measured queue size I doubt it increases, it has tendency to go to 0
21:05 Fixer_ but i'm not expert in code
21:05 VanessaE the only other thing I can think of that can cause that pattern is the log files (which are stored in /dev/shm), but those account for 3 GB or so in total, not the 1-2 GB shown on the graph
21:06 millersman i've never seen values in singleplayer above 50000 (seldom above 20000 and that only in extreme situations with badly optimized code), normal would be 2000
21:06 Fixer_ VanessaE: i wonder if it is possible to disable liquids at all on your server :}
21:07 Fixer_ millersman: even 15000 is raare
21:07 Fixer_ look my results
21:07 millersman even asuming that we have 100 players on a server and 50000 liquid-queue entries for each of them  that would mean 5 mio entries, which is 40 MB of memory
21:07 lhofhansl paramat: did #4826 fix the rendering issues you have reproduced?
21:07 Fixer_ on land, avg: 488, median: 267, mode: 0
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21:08 Fixer_ deep caving (mining, exploring, digging at fast pace), avg: 1099, median: 575, mode: 0
21:08 millersman this is why i doubt that the liquid queue could be the reason, except for when there is something awfully broken in it just keeps increasing
21:09 Fixer_ queue does not increase to me at all if i measured correctly, it dies down quickly to 0 in most cases even after 1hr
21:11 Fixer_ millersman: biggest servers I see had 50 players at most
21:12 Fixer_ millersman: and vanessas once are like <10 players or even empty
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21:12 VanessaE then I guess the liquid queue is no longer a concern
21:12 Fixer_ VanessaE: i wonder... does mem usage increases even for idle servers without players?
21:13 paramat lhofhansl, i might test the fix later
21:13 Fixer_ after 1hr of nonstop play my minetest game have not used anything suspicious in terms of ram
21:13 VanessaE Fixer_: yes.
21:13 VanessaE it's probably just the log files.
21:13 lhofhansl Definitely fixed the rendering issues I've seen.
21:13 VanessaE I'll move them back to disk (since it's SSD now)
21:13 Fixer_ VanessaE: then liquids are not in queue? since nothing is loaded?
21:14 millersman VanessaE Fixer_: I would suspect some kind of memory leak, I've seen that some servers I've been playing on got extremely unresponsive after some time
21:16 millersman I've been analyzing some of the mods and there is some very memory hungry stuff in some, but nothing that accounts for GBs. But I wouldn't be supprised if some mod is collecting references to unused objects that get leaked that way
21:19 paramat lua mapgens can have very high memory use, there are some optimisations that many do not yet use
21:19 millersman which reminds me that i wish there was some way a mod could attach extra data to a block or even a node-address that would be managed by the database...
21:20 Fixer_ millersman: how long ago? that problem with server stall was fixed
21:21 millersman sometime around july/august or so
21:21 millersman haven't been playing a lot lately and nothing on servers
21:22 millersman so it's likely fixed
21:25 Fixer_ millersman: server stall was very evident on ESM City (bigger and bigger lag with time)
21:26 millersman not sure which server it was but the bigger and bigger lag with time is exactly what i've observed
21:26 Fixer_ millersman: yes, that was fixed by this https://github.com/minetest/minetest/issues/4171
21:29 millersman ah ok... interesting stuff, haven't been doing a lot with networks in recent time
21:32 millersman so only worked around? maybe something i could dive into when i have more time again...
21:34 millersman regarding memory usage, i don't have that much experience with lua, is there a way to isolate objects allocated by the different mods in any way?
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22:01 paramat https://github.com/minetest/minetest/pull/4829 'Mapgen: Make mgv7 the default mapgen' hmmmm
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22:28 Fixer millersman: https://i.imgur.com/Qhb3szg.jpg does this look beautiful?
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22:33 Fixer one more and i will be quite: https://i.imgur.com/YadZ7mG.jpg
22:45 paramat wow
22:47 millersman wow
22:47 VanessaE indeed
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22:51 millersman Fixer: wanted to do one too but can't decide for the best view, your waterworld around -400,-470,0 downward
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22:55 millersman so it's time that someone finds time to review 4061, than everybody can see something like that (given the luck to find such a nice location)
23:07 Fixer can be found in mgvalleys
23:07 Fixer i made as much lava as possible
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