neovim/test/benchmark/extmark_spec.lua
zeertzjq d44ed3a885
perf(extmarks): better track whether namespace has extmarks (#28615)
This avoids redraw when adding/removing an empty namespace for a window.

This also avoids marktree traversal when clearing a namespace that has
already been cleared, which is added as a benchmark.
2024-05-03 18:02:25 +08:00

46 lines
1.1 KiB
Lua

local n = require('test.functional.testnvim')()
local clear = n.clear
local exec_lua = n.exec_lua
describe('extmark perf', function()
before_each(function()
clear()
exec_lua([[
out = {}
function start()
ts = vim.uv.hrtime()
end
function stop(name)
out[#out+1] = ('%14.6f ms - %s'):format((vim.uv.hrtime() - ts) / 1000000, name)
end
]])
end)
after_each(function()
for _, line in ipairs(exec_lua([[return out]])) do
print(line)
end
end)
it('repeatedly calling nvim_buf_clear_namespace #28615', function()
exec_lua([[
vim.api.nvim_buf_set_lines(0, 0, -1, true, { 'foo', 'bar' })
local ns0 = vim.api.nvim_create_namespace('ns0')
local ns1 = vim.api.nvim_create_namespace('ns1')
for _ = 1, 10000 do
vim.api.nvim_buf_set_extmark(0, ns0, 0, 0, {})
end
vim.api.nvim_buf_set_extmark(0, ns1, 1, 0, {})
start()
for _ = 1, 10000 do
vim.api.nvim_buf_clear_namespace(0, ns1, 0, -1)
end
stop('nvim_buf_clear_namespace')
]])
end)
end)