Now there was a certain man of Ramathaim Zophim, of the hill-country of Ephraim, and his name was Elkanah, the son of Jeroham, the son of Elihu, the son of Tohu, the son of Zuph, an Ephraimite:
Worshippers were permitted to feast on the peace-offerings after the priests had taken their portion, and the event mentioned here was that of parceling out the food to individuals.  Peninnah with her children received many portions, and despite Elkanah's love for Hannah, she would normally have received only one portion as the RSV text states it.