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IRC log for #minetest-dev, 2020-09-23

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All times shown according to UTC.

Time Nick Message
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16:07 BuckarooBanzai hey all, a question about ServerActiveObjects: i recently started to monitor them, is it normal that the amount of active-objects does not decrease over server-runtime (without restart)? I've seen only an increase in objects (over 3000 so far)
16:08 BuckarooBanzai (tell me if this is the wrong channel btw)
16:13 sfan5 maybe that's another issue with the monitoring?
16:14 BuckarooBanzai "Manual" monitoring, not prometheus this time ;)
16:15 BuckarooBanzai I re-used the profiler value from the active object manager, should be accurate i think
16:19 sfan5 the active object manager has a profiler value?
16:20 sfan5 in any case: does the number you see roughly match #core.object_refs
16:24 BuckarooBanzai uhm, not by far: 3274 from the profiler here: https://github.com/minetest/minetest/blob/master/src/server/activeobjectmgr.cpp#L47 versus 6 in "#minetest.object_refs"
16:24 Krock object_refs is probably not created for inactive objects, but loaded mapblocks
16:25 BuckarooBanzai well, if thats not normal, i can see if i can whip up a repro and file a bug then...
16:25 sfan5 I don't think the active object manager is managing inactive objects
16:28 BuckarooBanzai i was originally investigating slow calls to "ActiveObjectMgr::getObjectsInsideRadius()" but the amount of active object explains that part :/
16:29 BuckarooBanzai *objects
16:31 sfan5 ActiveObjectMgr::clear is not unittested but I doubt it's broken
16:36 Krock would be interesting to know the class properties of those garbage entities. perhaps there's a grey zone where they are dead, but not removed
16:36 BuckarooBanzai i guess that info is not accessible via lua, right?
16:38 Krock hmm. it might be possible to push the active entities to a custom Lua function, but no - there's only object_refs and that seems to work properly
16:40 sfan5 all calls to ::clear() remove the object ref from Lua first, and ::removeObject() isn't even used on the server
16:41 sfan5 but like Krock said a way to look into those ghost objects would be useful
16:56 Krock will merge #10419 and #10103 in 15 minutes
16:57 ShadowBot https://github.com/minetest/minetest/issues/10419 -- Replace MyEventReceiver KeyList with std::unordered_set by v-rob
16:57 ShadowBot https://github.com/minetest/minetest/issues/10103 -- Ability to remove minetest.after once set by tenplus1
17:11 Krock merging
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17:27 rubenwardy core.object_refs will contain nils, so you can't use #
17:29 Krock good catch. it might only count until the first nil value
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18:04 BuckarooBanzai thanks rubenwardy, tried it again with "/lua local count =0; for _ in ipairs(minetest.object_refs) do count = count + 1 end; print(count)" but somehow i only get "0" now
18:04 rubenwardy pairs, not ipairs
18:04 rubenwardy ipairs has the same issue - it stops on nils
18:05 BuckarooBanzai ok, that worked: i now have about the same number: 3960 active objects
18:06 BuckarooBanzai correction: 3960 counted on minetest.object_refs and 3305 on the engine sao-profiler
18:07 rubenwardy odd - memory leak?
18:08 BuckarooBanzai don't know yet, i see if i have some time to make a proper repro locally without much mods and players ;)
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18:30 sfan5 ah oops # does not work on tables so #core.object_refs is bogus
18:31 MTDiscord <J​ordach> # only works if it’s numerically indexed
18:36 Sokomine wonder if it might be possible to get a slightly larger heightmap at mapgen time
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18:54 BuckarooBanzai turns out the entites from the "signs_lib" don't get removed somehow, i'll investigate further some other time, thanks for all the help :)
18:55 MTDiscord <G​reenXenith> I had an issue on my server around a year ago where LCD displays were racking up entities because they werent being removed properly due to the behavior of unloaded areas, but IIRC I got a PR merged to fix it. Could be a similar issue.
18:56 BuckarooBanzai PR#?
18:56 MTDiscord <G​reenXenith> It may not have been an actual PR, since Cheapie uses her own git host :/
18:56 MTDiscord <G​reenXenith> I can probably find you a commit hash though
18:57 BuckarooBanzai that would be nice
18:57 MTDiscord <G​reenXenith> oh good it looks like digilines is still on github
18:58 MTDiscord <G​reenXenith> https://github.com/minetest-mods/digilines/pull/53
18:59 sfan5 BuckarooBanzai: I believe that's a feature
18:59 sfan5 and there's some way to explicitly clean them up
19:01 BuckarooBanzai thats a PR to re-use or add an entity, the problem is that the entity is still "active" even if you move away from it (or log out)
19:03 MTDiscord <G​reenXenith> Ah, I see. Sorry :]
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20:25 paramat #10417 is a 1 line bugfix and is now well tested, seems fairly trivial so will merge in 24 hours if no objections
20:25 ShadowBot https://github.com/minetest/minetest/issues/10417 -- Fix connection bug of hardware-colored framed glass by paramat
20:28 sfan5 that source comment is quite verbose
20:30 sfan5 I'd have written e.g. // Only respect H/V merge bits for liquid tanks
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20:53 paramat it is rather, i will change it to something close to your suggestion
20:53 paramat merging game#2639
20:53 ShadowBot https://github.com/minetest/minetest_game/issues/2639 -- furnace: Start the timer on on_metadata_inventory_take. by orbea
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22:21 cheapie [13:55:57] <MTDiscord> <G​reenXenith> I had an issue on my server around a year ago where LCD displays were racking up entities because they werent being removed properly due to the behavior of unloaded areas, but IIRC I got a PR merged to fix it. Could be a similar issue. [13:56:43] <MTDiscord> <G​reenXenith> It may not have been an actual PR, since Cheapie uses her own git host :/ <--- Digilines (the mod those are from) is not one of
22:21 cheapie my mods.
22:22 MTDiscord <G​reenXenith> Yeah I realized that roughly 13 seconds after I sent that message
22:23 MTDiscord <G​reenXenith> I was thinking of digistuff
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23:09 paramat i will merge #10417 now, it has had 15 mins and been checked. comment is shortened as requested
23:09 ShadowBot https://github.com/minetest/minetest/issues/10417 -- Fix connection bug of hardware-colored framed glass by paramat
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