ESP8266 Performance vs Arduino Uno with Ethernet Shield

[gut-man]

Thanks for sharing this useful mqtt implementation. As part of my studies I run performance tests with different microcontrollers and different packet sizes using this library. I´m sending 10x 1.000 packets with 27 Byte and 10x 1.000 packets with 117 Byte. It would might be expected that the number of packets increases with decreasing packet size. Regardless of the packet size the esp8266 shows a similar performance. Are there any known parameters in the library which could improve the performance?

Red: ESP8266
Green: Arduino