Code Size of AWS IoT OTA (example generated with GCC for ARM Cortex-M)
File	With -O1 Optimization	With -Os Optimization
ota.c	8.7K	7.8K
ota_interface.c	0.1K	0.1K
ota_base64.c	0.6K	0.6K
ota_mqtt.c	2.4K	2.3K
ota_cbor.c	0.8K	0.6K
ota_http.c	0.3K	0.3K
Total estimates	12.9K	11.7K