From 1a3fbdcdd37153ecaa9bdd5eb0a556dd22a5e073 Mon Sep 17 00:00:00 2001 From: Matthias Vogelgesang Date: Mon, 16 Oct 2017 11:08:28 +0200 Subject: grab: measure time per frame grab --- bin/tools/grab.c | 24 +++++++++++++++++------- 1 file changed, 17 insertions(+), 7 deletions(-) (limited to 'bin') diff --git a/bin/tools/grab.c b/bin/tools/grab.c index a3e1839..43367cd 100644 --- a/bin/tools/grab.c +++ b/bin/tools/grab.c @@ -175,7 +175,8 @@ record_frames (UcaCamera *camera, Options *opts) guint n_allocated; guint n_digits; gchar *fmt_string; - GTimer *timer; + GTimer *total_timer; + GTimer *frame_timer; gdouble elapsed; UcaRingBuffer *buffer; GError *error = NULL; @@ -190,12 +191,14 @@ record_frames (UcaCamera *camera, Options *opts) size = roi_width * roi_height * pixel_size; n_allocated = opts->n_frames > 0 ? opts->n_frames : 256; buffer = uca_ring_buffer_new (size, n_allocated); - timer = g_timer_new(); + total_timer = g_timer_new(); + frame_timer = g_timer_new(); + g_timer_stop (frame_timer); g_print ("Acquiring %i images at %ix%i with %i bits per pixel\n", opts->n_frames, roi_width, roi_height, bits); - uca_camera_start_recording(camera, &error); + uca_camera_start_recording (camera, &error); if (error != NULL) return error; @@ -203,10 +206,12 @@ record_frames (UcaCamera *camera, Options *opts) n_frames = 0; n_digits = floor (log10 (abs (opts->n_frames))) + 1; fmt_string = g_strdup_printf ("\33[2K\r%%%ii/%%i images acquired ...", n_digits); - g_timer_start(timer); + g_timer_start (total_timer); while (1) { + g_timer_continue (frame_timer); uca_camera_grab (camera, uca_ring_buffer_get_write_pointer (buffer), &error); + g_timer_stop (frame_timer); uca_ring_buffer_write_advance (buffer); if (error != NULL) @@ -218,10 +223,14 @@ record_frames (UcaCamera *camera, Options *opts) break; } - elapsed = g_timer_elapsed (timer, NULL); - g_print ("\nAcquired %3.2f images/s = %3.2f ms/image = %.4f MB/s\n", + elapsed = g_timer_elapsed (total_timer, NULL); + + g_print ("\nTime total = %3.2f s => %3.2f f/s = %3.2f ms/f = %.4f MB/s\n", + elapsed, n_frames / elapsed, elapsed / n_frames * 1000., n_frames * size / 1024. / 1024. / elapsed); + g_print ("Time mean = %3.2f ms\n", + g_timer_elapsed (frame_timer, NULL) / n_frames * 1000.); uca_camera_stop_recording (camera, &error); @@ -239,7 +248,8 @@ record_frames (UcaCamera *camera, Options *opts) } g_object_unref (buffer); - g_timer_destroy (timer); + g_timer_destroy (total_timer); + g_timer_destroy (frame_timer); return error; } -- cgit v1.2.3