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IRC log for #minetest-dev, 2017-12-27

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All times shown according to UTC.

Time Nick Message
00:23 red-001 paramat, anything of mine?
00:23 paramat yes, can be reopened on progress
00:48 Fixer !tell paramat maybe instead of closing those pull requests mark some of them with "Neglected" tag
00:48 ShadowBot Fixer: O.K.
00:49 sfan5 Fixer: we'll never manage to clean our issue section if we don't do it like this
00:49 Fixer pull requests
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03:12 basicer Almost in the 2 digits : )
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10:49 srifqi I was trying to fix #258 and #3167 but I stuck on a point. Please read my PR #6849 message.
10:49 ShadowBot https://github.com/minetest/minetest/issues/258 -- Make it clearer that the first login to a server is also a registration
10:49 ShadowBot https://github.com/minetest/minetest/issues/3167 -- Feature request: Confirm password for account creation
10:49 ShadowBot https://github.com/minetest/minetest/issues/6849 -- [WIP] Add confirmation on new player registration by srifqi
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13:04 crazyR sfan5 is there a reason why the announce server needs to know what the default privs are on a minetet server?
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13:09 crazyR or whether players can see playnames from a far away
13:10 crazyR or whether the server is setup to use rollback or not. maybe im missing something but these details are not currently displayed on the servers list..
13:11 nerzhul crazyR, i think it's historical issues
13:12 rubenwardy it's on servers.minetest.net
13:12 rubenwardy but not in the client
13:12 rubenwardy and never had been
13:12 rubenwardy it's interesting, but not used
13:12 nerzhul maybe a tooltip can be nice
13:13 crazyR oh i see... i dont see the relevence though... maybe its just me being picky.  lol
13:29 Shara I like knowing what the default privs are when I join a server.
13:29 Shara For example, if I join a Creative server, I want to know if there are suitable privs for building. No fly and I wouldn't even bother to connect.
13:30 Shara So please don't remove that info :)
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13:44 crazyR that info is useless on my server thought. and i suspect a couple of other servers too.. i used a modified version of the ranks mod. and that sets the player privs on join.. so that info becomes useless in situations like this
13:45 crazyR then you have servers where  you must ask for interactive to prevent abusers,, etc.
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18:24 twahm What is the better choice to replace zlib, lz4 or zstd?
18:25 sfan5 depends on the goal
18:28 twahm the vps hosting offer enough space so I think the better choice is lz4, but I do not know what would be better for all users
18:29 Warr1024 zstd has a neat pre-shared dictionary mode that improves compression over short strings, but IIRC it's much slower than naive mode.
18:30 twahm What is IIRC?
18:31 sfan5 "if I remember correctly"
18:32 sfan5 it's not like you can just choose which compression algo Minetest uses, so I'm not sure why you're asking this question
18:35 twahm Is that I have been looking at this page https://github.com/minetest/minetest/projects and one of the features to implement appears to change the comprehension format and I am thinking about implementing it
18:36 Warr1024 somehow this reminds me of something I read where someone claimed that using compression (I think gzip at "fastest" speed) could actually save CPU time.  The theory is that you spend a little in-process time to reduce the number of syscalls (context switches) you make due to the smaller payoad.  If that's the case, then in some cases there's no real need to switch to one of the "faster than zlib"
18:36 Warr1024 type algos like lzo, lz4, snappy, etc.
18:40 Warr1024 before anyone goes to the trouble of swiching out the algo, it would be best to measure the actual cost of curren compression and prove that it's significant at all.
18:40 Warr1024 and even if it is, an alternative method that maintains bitstream compatibility, like offering the option to lower compression level, might be beter.
18:41 sfan5 twahm: there's an issue for this already which contains comprehensive benchmarks
18:42 sfan5 and implementations with zlib swapped for zstd (by est31) or brotli (by me)
18:45 twahm according to this http: f the speed of compression and decompression of lz4 is much higher than zstd or brotli
18:45 Warr1024 IIRC brotli is really optimized for web content, i.e. has some kind of built-in initial state based on common web usage.  I'd be surprised if the compression/cost trade-off was as good as it should be.
18:45 twahm https://github.com/facebook/zstd/wiki, sorry
18:45 Warr1024 otoh, zlib/deflate is based on LZ77 (as in the year 1977) so I suppose some improvements may have happened in the meantime :-)
18:46 sfan5 lz4 is mostly for "compress this real quick before I send it over the network"-style usecases
18:46 sfan5 while in Minetest compression does not need to be realtime and disk space matters too
18:47 twahm i see
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22:03 Hijiri any reviews for #6688?
22:03 ShadowBot https://github.com/minetest/minetest/issues/6688 -- Custom particle generators for particle spawners by raymoo
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