Profiler
Profiler
Profiler is a built in mod, activated via "profiler.load = true" in minetest.conf file.
Usage: "/profiler save" by a server admin. This makes a text file "profiler date-time.txt" to check out.
The file I (Thailand) got, is from 11.09.2019
The file contains summary and single part from all activated mods and may help to target lag source.
example
more_chests: - on_joinplayer[1] ..................................
with numbers for
- min µs
- max µs (leads to peaks, used for rank peaks)
- avg µs (lead to avg lag, used for rank B)
- min %
- max %
- avg % (lead to avg lag, used for rank A)
- avg : mean time making work for cpu
- peak : short but heavy usage, maybe feel lag
results
To read that you need to find out the most top 5 or 10 avg, as there where this time (11.09.2019):
- advtrains - 35.6 % avg (rank 1) and just 40.4% peak of peak max messecons (rank 5)
- pipeworks - 17,9 % avg (rank 2), depend on avg us rank 3, and its peaks 53 % strength of messecons peak = rank 2
- messecons - 12.7 % avg (rank 3), but depend on avg us rank 1, top peak rank 1
- technic - 4.6 % avg (rank 4), depend on avg us rank 4 also, peaks just 35% as of messecons, rank 7
- advtrains_train_japan - 4.6 % avg (rank 4), depend on avg us just rank 7
- default - 4.4% rank 6 ... where I stop to check, as above mods make together 75% of all cpu work ...
summary
The most avg work, mean all time through the server is on is made by mods:
- advtrains (35-40%)
- + pipeworks (18%) = sum 53-58%
- and + messecons 13%, mean sum cpu for 3 mods 66-71%
The main hard peaks are generated out from
- messecons peaks, counted here as 100% as most strong peaks
- pipeworks peaks, at least strong 50% strength of messecons
- advtrtains peaks, which are still 40% as strong like the messecons peaks
- technic peaks, have also 35% the strength like messecons peaks
- ambience then follow with 24% hard peaks compare to messecons
conclusion
There are main just 3 mods there behaviour have to be checks / reduces to get lag down.
all others are minor effect to server.
Author
Thailand, known as Festus1965 in Forum, and Thomas or Explorer on most other servers. I played around with profiler since at least 2 years and successful reduced lag on my server basing on profiler results. There is a change possible in pipeworks reducing that mod about 50% of its impact. At advtrains I have no glue, as I dont use it, as I know its impact on servers.