I'm looking for the example of a concave function $g \colon [0,1] \mapsto \mathbb{R}$, with $g(0)=0$, for which
- $\lim\limits_{x\to 0^+}\frac{g(x)}{-x\ln x}=\infty$, and
- $\lim\limits_{x\to 0^+}\frac{\lambda g(x)}{g(\lambda x)}=1$ for every $\lambda>1$