From 97d8530b7e9bf1e3f4c7f7ca2ed05c3238222235 Mon Sep 17 00:00:00 2001
From: Dan Nechita <dan.nechita@analog.com>
Date: Wed, 17 Apr 2024 15:12:43 +0300
Subject: [PATCH] sdk: Time profile waiting for v4l2 buffer within
 processBuffer()

Signed-off-by: Dan Nechita <dan.nechita@analog.com>
---
 .../connections/target/buffer_processor.cpp   | 21 ++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

diff --git a/sdk/src/connections/target/buffer_processor.cpp b/sdk/src/connections/target/buffer_processor.cpp
index c3bd0cef0..a5fcfea6f 100644
--- a/sdk/src/connections/target/buffer_processor.cpp
+++ b/sdk/src/connections/target/buffer_processor.cpp
@@ -226,8 +226,13 @@ aditof::Status BufferProcessor::processBuffer(uint16_t *buffer = nullptr) {
     uint8_t *pdata;
     dev = m_inputVideoDev;
     uint8_t *pdata_user_space = nullptr;
-
+#ifdef TIME_PROFILING
+    steady_clock::time_point wfb_t0 = steady_clock::now();
+#endif
     status = waitForBufferPrivate(dev);
+#ifdef TIME_PROFILING
+    steady_clock::time_point wfb_t1 = steady_clock::now();
+#endif
     if (status != Status::OK) {
         return status;
     }
@@ -317,17 +322,27 @@ aditof::Status BufferProcessor::processBuffer(uint16_t *buffer = nullptr) {
     // Measure execution times, display statistics
     auto process_buffer_elapsed_time =
         std::chrono::duration_cast<std::chrono::microseconds>(pb_t1 - pb_t0);
+    auto wait_for_buffer_elapsed_time =
+        std::chrono::duration_cast<std::chrono::microseconds>(wfb_t1 - wfb_t0);
     auto tofi_compute_elapsed_time =
         std::chrono::duration_cast<std::chrono::microseconds>(tc_t1 - tc_t0);
     auto frame_memcpy_elapsed_time =
         std::chrono::duration_cast<std::chrono::microseconds>(mc_t1 - mc_t0);
 
-    auto total_profiled_time =
-        tofi_compute_elapsed_time + frame_memcpy_elapsed_time;
+    auto total_profiled_time = wait_for_buffer_elapsed_time +
+                               tofi_compute_elapsed_time +
+                               frame_memcpy_elapsed_time;
 
     std::cout << std::endl;
     std::cout << "BufferProcessor::processBuffer() took: "
               << process_buffer_elapsed_time.count() << "us" << std::endl;
+    std::cout << "|--> WaitForBuffer() took: "
+              << wait_for_buffer_elapsed_time.count() << "us"
+              << "("
+              << ((double)wait_for_buffer_elapsed_time.count() /
+                  process_buffer_elapsed_time.count()) *
+                     100.0
+              << "%)" << std::endl;
     std::cout << "|--> TofiCompute() took: "
               << tofi_compute_elapsed_time.count() << "us"
               << "("