Re: [avr-gcc-list] Why EthNut2.4.2 should use -Os instead of -O3?

[Harald Kipp]

>         void NutThreadSwitch(void) __attribute__ ((noinline));

solves this problem. But still the executable is
much larger. For AVRs I don't think it's a good idea
to make static functions inline.

Anyway, changing from -o3 to -os didn't noticably reduce
the execution speed of TCP/IP stack. It's still at 2Mbps:
A great compiler combined with a great CPU.

Harald Kipp


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