As Ifor correctly points out, far more people died after the revoltion than during it. The so-called "Russian revolution" of 1917 was a small coup in St Petersburg/ Petrograd/Leningrad/St Petersburg, that toppled the semi-liberal/bourgoeois Kerensky regime(which had been vaguely voted into power by a not-excessively-democratic democratic process after the czar had been de-powered). After this Leninist(Trotsky and Stalin were also around) coup, the Bolsheviks started consolidating, and seriously started killing their opponents, sometimes with the simple bullet to the head or starving in camps, sometimes in more imaginatively amusing ways. This continued, with steadily escalating and more revolting intensity, as Trotsky's army, and then Stalin's regime, took over(with others fighting back, with matching or exceeding ferocity). Hardly surprisingly, this system is still having difficulty evolving into anything very conducive to a peaceful life for the working-class citizens of Russia, even 79 years later.
Ifor is absolutely right, the revolution was nothing. What came after was the real business. And Ewan M thought it was bloody wonderful. Most people who sit back and take a long hard look would think it was just bloody revolting.