lazy.nvim/lua/lazy/stats.lua

84 lines
2.1 KiB
Lua

local ffi = require("ffi")
local M = {}
---@class LazyStats
M._stats = {
-- startuptime in milliseconds till UIEnter
startuptime = 0,
-- when true, startuptime is the accurate cputime for the Neovim process. (Linux & Macos)
-- this is more accurate than `nvim --startuptime`, and as such will be slightly higher
-- when false, startuptime is calculated based on a delta with a timestamp when lazy started.
real_cputime = false,
count = 0, -- total number of plugins
loaded = 0, -- number of loaded plugins
---@type table<string, number>
times = {},
}
---@type ffi.namespace*
M.C = nil
function M.on_ui_enter()
M._stats.startuptime = M.track("UIEnter")
vim.api.nvim_exec_autocmds("User", { pattern = "LazyVimStarted", modeline = false })
end
function M.track(event)
local time = M.cputime()
M._stats.times[event] = time
return time
end
function M.cputime()
if M.C == nil then
pcall(function()
ffi.cdef([[
typedef long time_t;
typedef int clockid_t;
typedef struct timespec {
time_t tv_sec; /* seconds */
long tv_nsec; /* nanoseconds */
} nanotime;
int clock_gettime(clockid_t clk_id, struct timespec *tp);
]])
M.C = ffi.C
end)
end
local function real()
local pnano = assert(ffi.new("nanotime[?]", 1))
local CLOCK_PROCESS_CPUTIME_ID = jit.os == "OSX" and 12 or 2
ffi.C.clock_gettime(CLOCK_PROCESS_CPUTIME_ID, pnano)
return tonumber(pnano[0].tv_sec) * 1e3 + tonumber(pnano[0].tv_nsec) / 1e6
end
local function fallback()
return (vim.loop.hrtime() - require("lazy")._start) / 1e6
end
local ok, ret = pcall(real)
if ok then
M.cputime = real
M._stats.real_cputime = true
return ret
else
M.cputime = fallback
return fallback()
end
end
function M.stats()
M._stats.count = 0
M._stats.loaded = 0
for _, plugin in pairs(require("lazy.core.config").plugins) do
M._stats.count = M._stats.count + 1
if plugin._.loaded then
M._stats.loaded = M._stats.loaded + 1
end
end
return M._stats
end
return M