Compare code size keil and segger

[Stas]

I read about Segger studio (on their website) that it reduces the code size. I try to check it out Here's my opposite result I've compiled the same app (e.g uart_example) in different IDE: keil and segger. the result for Keil:

for Segger:

[endnode]

And what is a question? Indeed different compilers and linkers make different binary output sizes (also note that most of modern toolchains have several optimization levels so even with one chain you can easily have different sizes depends on project settings). And indeed creators of these tools will claim on their home page that their optimizations are better. What is the surprise?