The House of Representatives has been voting often this year. On May 2 the House was in session from 10 a.m. to 11:59 p.m. and during that time held 23 recorded votes, one shy of the most on a single calendar day in the period since 1991 (a "legislative day" may extend beyond midnight into the next calendar day).
The House held 24 roll call votes on June 11, 1997, and has had two other 23-vote days: June 29, 1995 and March 16, 2006. All of those pale in comparison to the activity of the Senate when it decides to cram in dozens of votes in a single day. On Oct. 27, 1995, the Senate held 39 roll call votes, and has exceeded the House's top total on five other occasions.
The House's voting frenzy has resulted in the most votes through May of any first session of Congress in washingtonpost.com's Congressional Votes database. The 383 votes in the House this year are more than occurred at this point in the 104th Congress, when Republicans tackled their Contract with America. This year's Senate, with 172 votes so far, is off the frenetic pace of the 104th and also trails the activity in the 108th Congress (2003-2004).