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Measure processing latency

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This commit is contained in:
Kamil Trzcinski
2022-04-07 12:44:36 +02:00
parent a56886cb6c
commit 944b051daa
3 changed files with 7 additions and 3 deletions
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8
hw/buffer_lock.c
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@ -43,11 +43,13 @@ void buffer_lock_capture(buffer_lock_t *buf_lock, buffer_t *buf)
buffer_use(buf);
buf_lock->buf = buf;
buf_lock->counter++;
buf_lock->buf_time_us = get_monotonic_time_us(NULL, NULL);
uint64_t last_lock_us = buf_lock->buf_time_us;
uint64_t captured_time_us = get_time_us(CLOCK_FROM_PARAMS, NULL, &buf->v4l2_buffer.timestamp, 0);
E_LOG_DEBUG(buf_lock, "Captured buffer %s (refs=%d), frame=%d, delay=%.1f",
buf_lock->buf_time_us = get_monotonic_time_us(NULL, NULL);
E_LOG_DEBUG(buf_lock, "Captured buffer %s (refs=%d), frame=%d, processing_us=%.1f, frame_us=%.1f",
dev_name(buf), buf ? buf->mmap_reflinks : 0, buf_lock->counter,
(buf_lock->buf_time_us - captured_time_us) / 1000.0f);
(buf_lock->buf_time_us - captured_time_us) / 1000.0f,
(buf_lock->buf_time_us - last_lock_us) / 1000.0f);
pthread_cond_broadcast(&buf_lock->cond_wait);
pthread_mutex_unlock(&buf_lock->lock);
}