Blasphemy, there was propably (I would say that propability is 99,99 %, when we remember which time era in galactic history it was) tens of thousands of jedi knights prior mandalorian wars if not even more, and even though many jedi perished during Mandy Wars, there were still tens of thousands of jedis on each side of conflict in the beginning of JCW.
However, when JCW ended, "barely hundred jedi remained", so no, they definetly did not kill more jedis than Revan & Malak