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Implement get_node with a get_node_raw (#14384)

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Add /bench_bulk_get_node
Considerably improves the execution speed of core.get_node
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DS 2024-03-03 15:53:23 +01:00 • committed by GitHub
parent 879f7e9f03
commit d4d4712361
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4 changed files with 90 additions and 49 deletions
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65
games/devtest/mods/benchmarks/init.lua
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@ -71,6 +71,22 @@ minetest.register_chatcommand("bench_content2name", {
end,
})
local function get_positions_cube(ppos)
local pos_list = {}
local i = 1
for x=2,100 do
for y=2,100 do
for z=2,100 do
pos_list[i] = ppos:offset(x, y, z)
i = i + 1
end
end
end
return pos_list
end
minetest.register_chatcommand("bench_bulk_set_node", {
params = "",
description = "Benchmark: Bulk-set 99×99×99 stone nodes",
@ -79,25 +95,15 @@ minetest.register_chatcommand("bench_bulk_set_node", {
if not player then
return false, "No player."
end
local pos_list = {}
local ppos = player:get_pos()
local i = 1
for x=2,100 do
for y=2,100 do
for z=2,100 do
pos_list[i] = {x=ppos.x + x,y = ppos.y + y,z = ppos.z + z}
i = i + 1
end
end
end
local pos_list = get_positions_cube(player:get_pos())
minetest.chat_send_player(name, "Benchmarking minetest.bulk_set_node. Warming up ...");
minetest.chat_send_player(name, "Benchmarking minetest.bulk_set_node. Warming up ...")
-- warm up with stone to prevent having different callbacks
-- due to different node topology
minetest.bulk_set_node(pos_list, {name = "mapgen_stone"})
minetest.chat_send_player(name, "Warming up finished, now benchmarking ...");
minetest.chat_send_player(name, "Warming up finished, now benchmarking ...")
local start_time = minetest.get_us_time()
for i=1,#pos_list do
@ -114,4 +120,37 @@ minetest.register_chatcommand("bench_bulk_set_node", {
end,
})
minetest.register_chatcommand("bench_bulk_get_node", {
params = "",
description = "Benchmark: Bulk-get 99×99×99 nodes",
func = function(name, param)
local player = minetest.get_player_by_name(name)
if not player then
return false, "No player."
end
local pos_list = get_positions_cube(player:get_pos())
local function bench()
local start_time = minetest.get_us_time()
for i=1,#pos_list do
local n = minetest.get_node(pos_list[i])
-- Make sure the name lookup is never optimized away.
-- Table allocation might still be omitted. But only accessing
-- the name of a node is a common pattern anyways.
if n.name == "benchmarks:nonexistent_node" then
error("should never happen")
end
end
return minetest.get_us_time() - start_time
end
minetest.chat_send_player(name, "Benchmarking minetest.get_node. Warming up ...")
bench()
minetest.chat_send_player(name, "Warming up finished, now benchmarking ...")
local result_us = bench()
local msg = string.format("Benchmark results: minetest.get_node loop 1: %.2f ms",
result_us / 1000)
return true, msg
end,
})