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-- [disable CPU freq scaling for benchmark]
-- create a session
-- add 16 mono tracks
-- record 2-3 mins on each track starting at 00:00:00:00
-- rewind the playhead to 00:00:00:00
-- run this script in Menu > Window. Scripting 10 times
ardour { ["type"] = "EditorAction", name = "Split Benchmark" }
function factory (params) return function ()
function split_at (pos)
local add_undo = false -- keep track if something has changed
Session:begin_reversible_command ("Auto Region Split")
for route in Session:get_tracks():iter() do
local playlist = route:to_track():playlist ()
playlist:to_stateful ():clear_changes ()
for region in playlist:regions_at (pos):iter () do
playlist:split_region (region, ARDOUR.MusicSample (pos, 0))
end
if not Session:add_stateful_diff_command (playlist:to_statefuldestructible ()):empty () then
add_undo = true
end
end
if add_undo then
Session:commit_reversible_command (nil)
else
Session:abort_reversible_command ()
end
end
function count_regions ()
local total = 0
for route in Session:get_tracks():iter() do
total = total + route:to_track():playlist():region_list():size()
end
return total
end
for x = 1, 3 do
local playhead = Session:transport_sample ()
local step = Session:samples_per_timecode_frame()
local n_steps = 20
local t_start = ARDOUR.LuaAPI.monotonic_time ()
for i = 1, n_steps do
split_at (playhead + step * i)
end
local t_end = ARDOUR.LuaAPI.monotonic_time ()
Session:request_locate((playhead + step * n_steps), ARDOUR.LocateTransportDisposition.MustStop, ARDOUR.TransportRequestSource.TRS_UI)
print (count_regions (), (t_end - t_start) / 1000 / n_steps)
collectgarbage ();
ARDOUR.LuaAPI.usleep(500000)
end
end end
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