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clutter/frame-clock: Add presented profile trace

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In addition to the presented callback time, it shows the time to the
reported presentation time (which can be earlier or later than the
presented callback), as well as the GPU rendering duration.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1928>
This commit is contained in:
Ivan Molodetskikh 2021-12-14 12:32:42 +03:00
parent bcf6ee5e55
commit e10084199b
1 changed files with 42 additions and 0 deletions
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42
clutter/clutter/clutter-frame-clock.c
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@ -228,6 +228,48 @@ void
clutter_frame_clock_notify_presented (ClutterFrameClock *frame_clock,
ClutterFrameInfo *frame_info)
{
COGL_TRACE_BEGIN_SCOPED (ClutterFrameClockNotifyPresented,
"Frame Clock (presented)");
#ifdef COGL_HAS_TRACING
if (G_UNLIKELY (cogl_is_tracing_enabled ()))
{
int64_t current_time_us;
g_autoptr (GString) description = NULL;
current_time_us = g_get_monotonic_time ();
description = g_string_new (NULL);
if (frame_info->presentation_time != 0)
{
if (frame_info->presentation_time <= current_time_us)
{
g_string_append_printf (description,
"presentation was %ld µs earlier",
current_time_us - frame_info->presentation_time);
}
else
{
g_string_append_printf (description,
"presentation will be %ld µs later",
frame_info->presentation_time - current_time_us);
}
}
if (frame_info->gpu_rendering_duration_ns != 0)
{
if (description->len > 0)
g_string_append (description, ", ");
g_string_append_printf (description,
"buffer swap to GPU done: %ld µs",
ns2us (frame_info->gpu_rendering_duration_ns));
}
COGL_TRACE_DESCRIBE (ClutterFrameClockNotifyPresented, description->str);
}
#endif
frame_clock->last_presentation_time_us = frame_info->presentation_time;
frame_clock->got_measurements_last_frame = FALSE;