There is a reason for this that doesn't match the assumed laziness or lack of a sense of urgency that criticism from here implies:
The legislature is taking their traditional two month Summer vacation, to give the Sunni Arab leaders time to do what they have to do. If the Sunni Arabs have not taken care of their terrorists by the end of August, the government will have to consider alternatives. The scariest one is letting the militant Shia Arabs apply their solution to the problem; expelling all Sunni Arabs from Iraq.
Truly, it is telling that there is outrage in our Congress that Iraq's Parliament wants to go on recess. They apparently think that every problem is just one bill away from being solved. This is not the case in Iraq. (Shoot, if Congress would appropriate the money to fight the war and go on a 12-month recess, it would help our war effort!) The Sunni Arab Committee on the War needs some time to work and report back to the full body, so to speak.
Still, given that too many here would use a recess in Iraq as an excuse to cut aid to Iraq or funding for the war, the Iraqi Parliament would be wise to seriously consider their option of staying in session formally. Heck, they just have to do it until our Congress goes out for the summer (whether or not all the problems we have are solved by legislation).
Too many people here are looking for any excuse to abandon Iraq. The Iraqis need to learn to play by Washington rules, too.