\[ \boxed { x{\frac {{\rm d}^{2}}{{\rm d}{x}^{2}}}y \left ( x \right ) +{\frac {\rm d}{{\rm d}x}}y \left ( x \right ) =0} \]
Mathematica: cpu = 0.004501 (sec), leaf count = 13 \[ \left \{\left \{y(x)\to c_1 \log (x)+c_2\right \}\right \} \]
Maple: cpu = 0.016 (sec), leaf count = 10 \[ \left \{ y \left ( x \right ) ={\it \_C2}\,\ln \left ( x \right ) +{\it \_C1} \right \} \]