diff --git a/src/picom.c b/src/picom.c
index fb7e49e..8a58fe5 100644
--- a/src/picom.c
+++ b/src/picom.c
@@ -1741,8 +1741,24 @@ static void handle_pending_updates(EV_P_ struct session *ps) {
 }
 
 static void draw_callback_impl(EV_P_ session_t *ps, int revents attr_unused) {
+	struct timespec now;
+	int64_t draw_callback_enter_us;
+	clock_gettime(CLOCK_MONOTONIC, &now);
+
+	draw_callback_enter_us = (now.tv_sec * 1000000LL + now.tv_nsec / 1000);
+	if (ps->next_render != 0) {
+		log_trace("Schedule delay: %" PRIi64 " us",
+		          draw_callback_enter_us - (int64_t)ps->next_render);
+	}
+
 	handle_pending_updates(EV_A_ ps);
 
+	int64_t after_handle_pending_updates_us;
+	clock_gettime(CLOCK_MONOTONIC, &now);
+	after_handle_pending_updates_us = (now.tv_sec * 1000000LL + now.tv_nsec / 1000);
+	log_trace("handle_pending_updates took: %" PRIi64 " us",
+	          after_handle_pending_updates_us - draw_callback_enter_us);
+
 	if (ps->first_frame) {
 		// If we are still rendering the first frame, if some of the windows are
 		// unmapped/destroyed during the above handle_pending_updates() call, they
@@ -1799,6 +1815,12 @@ static void draw_callback_impl(EV_P_ session_t *ps, int revents attr_unused) {
 		ev_timer_start(EV_A_ & ps->fade_timer);
 	}
 
+	int64_t after_preprocess_us;
+	clock_gettime(CLOCK_MONOTONIC, &now);
+	after_preprocess_us = (now.tv_sec * 1000000LL + now.tv_nsec / 1000);
+	log_trace("paint_preprocess took: %" PRIi64 " us",
+	          after_preprocess_us - after_handle_pending_updates_us);
+
 	// If the screen is unredirected, free all_damage to stop painting
 	if (ps->redirected && ps->o.stoppaint_force != ON) {
 		static int paint = 0;