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clutter/frame-clock: Log updates to max update duration estimate

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Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/4282>
This commit is contained in:
Michel Dänzer 2025-02-15 15:49:55 +01:00 committed by Marge Bot
parent 7cc3dede2f
commit dbd82f47a5
1 changed files with 19 additions and 0 deletions
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19
clutter/clutter/clutter-frame-clock.c
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@ -360,10 +360,18 @@ maybe_update_longterm_max_duration_us (ClutterFrameClock *frame_clock,
if (frame_clock->longterm_max_update_duration_us >
frame_clock->shortterm_max_update_duration_us)
{
int64_t old_duration_us;
/* Exponential drop-off toward the short-term max */
old_duration_us = frame_clock->longterm_max_update_duration_us;
frame_clock->longterm_max_update_duration_us -=
(frame_clock->longterm_max_update_duration_us -
frame_clock->shortterm_max_update_duration_us) / 2;
CLUTTER_NOTE (FRAME_TIMINGS,
"Maximum update duration estimate updated: %ldµs → %ldµs",
old_duration_us,
frame_clock->longterm_max_update_duration_us);
}
else
{
@ -496,6 +504,7 @@ clutter_frame_clock_notify_presented (ClutterFrameClock *frame_clock,
int64_t dispatch_to_swap_us, swap_to_rendering_done_us, swap_to_flip_us;
int64_t dispatch_time_us = presented_frame->dispatch_time_us;
int64_t flip_time_us = presented_frame->flip_time_us;
int64_t max_duration_us;
if (frame_info->cpu_time_before_buffer_swap_us == 0)
{
@ -523,6 +532,8 @@ clutter_frame_clock_notify_presented (ClutterFrameClock *frame_clock,
swap_to_rendering_done_us,
swap_to_flip_us);
max_duration_us = get_max_update_duration_us (frame_clock);
frame_clock->shortterm_max_update_duration_us =
CLAMP (presented_frame->dispatch_lateness_us + dispatch_to_swap_us +
MAX (swap_to_rendering_done_us, swap_to_flip_us) +
@ -530,6 +541,14 @@ clutter_frame_clock_notify_presented (ClutterFrameClock *frame_clock,
frame_clock->shortterm_max_update_duration_us,
2 * frame_clock->refresh_interval_us);
if (frame_clock->shortterm_max_update_duration_us > max_duration_us)
{
CLUTTER_NOTE (FRAME_TIMINGS,
"Maximum update duration estimate updated: %ldµs → %ldµs",
max_duration_us,
frame_clock->shortterm_max_update_duration_us);
}
maybe_update_longterm_max_duration_us (frame_clock, frame_info);
presented_frame->got_measurements = TRUE;